Haley M. Dietz 20250214 tabular digital data, pdf https://doi.org/10.5066/P13FB9DZ In 2020, Cascade Drilling contracted by Rizzo International, Inc drilled and constructed corehole CFPP-B01 (USGS Site 433814113031801) for stratigraphic framework analysis. The corehole is located along the western boundary of Idaho National Laboratory (INL) just south of State Highway 33 in southeastern Idaho. Corehole CFPP-B01 was continuously cored from approximately 4 to 1538 feet (ft) below land surface (BLS) between September 16th, 2020 and October 23rd, 2020. After coring was complete, the U.S. Geological Survey (USGS) collected geophysical data, uranium-leab (U-Pb) zircon age data from two separate rhyolite intervals, and prepared detailed core descriptions. The USGS Idaho National Laboratory Project Office (INLPO) measured a water level of 546 feet BLS and collected geophysical logs using Century™ multi-parameter logging probes on November 3rd, 2020. Geophysical data include natural gamma, neutron, and temperature (9057A), gamma-gamma density (0024C), and gyroscopic deviation (9095C) logs. These data were examined synergistically with available core material to identify contacts between basalt flows and location and thickness of sediment layers. These logs are displayed in file CFPP-B01_Geophysical_Log.pdf. The gyroscopic deviation survey displays the project well bore path in plan view in file CFPP-B01_PlanView_GyroLog.pdf. Geophysical log data can also be obtained by downloading attached LAS files or by visiting USGS-GeoLog Locator. The core from CFPP-B01 is archived at the USGS Lithologic Core Storage Library located at the Central Facilities Area of INL. CFPP-B01 drill core was photographed and described using the standardized methods of Johnson and others (2005). These standardized methods make use of commercially available software that include using a procedure developed by the USGS INLPO. The standardized method maximizes description and minimizes interpretation of the core. Lithologic description of the drill core identified two rhyolite horizons: an upper horizon from 1139.7 to 1384.7 ft BLS and a lower horizon from 1512 to 1538.2 ft BLS. U-Pb data from each horizon was acquired via laser ablation-inductively coupled plasma mass spectrometry (LA-ICPMS) and isotope dilution-thermal ionization mass spectrometry (ID-TIMS) from the Boise State University Isotope Geology Laboratory to obtain rare earth element geochemistry and U-Pb isotope ratios to calculate the eruption age of both horizons. The purpose of this data set is to provide geologic core, geophysical data, and rhyolite U-Pb zircon data for corehole CFPP-B01 (433814113031801). 20200916 20250930 ground condition Complete None planned ISO 19115 Topic Category boundaries geoscientificInformation USGS Thesarus well drilling geophysics corehole logging drilling and coring mass spectroscopy core analysis radiometric dating uranium-lead analysis igneous rocks volcanic rocks geochronology isotopic analysis None lithologic core log CFPP-B01 natural gamma neutron gamma-gamma LAS eastern Snake River Plain Aquifer gyro log INL Lithologic Core Storage Library 433814113031801 INLPO U-Pb uranium-lead LA-ICPMS laser ablation-inductively coupled mass spectroscopy ID-TIMS isotope dilution-thermal ionization mass spectrometry USGS Metadata Identifier USGS:671819d5d34ee1f0a8822616 None Idaho National Laboratory Idaho Eastern Snake River Plain Butte County INL None. Please see 'Distribution Info' for details. None. Users are advised to read the dataset's metadata thoroughly to understand appropriate use and data limitations. Brian V. Twining USGS - NW-PACIFIC ISLAND REG INL Project Office Chief mailing and physical

Mail Stop 1160, 1955 N. Fremont Ave.

Idaho Falls ID 83415 US 208-526-2540 btwining@usgs.gov Kendra Murray, Mark Schmitz Geophysical data include Log ASCII standard (LAS) files for each log, processed in standard industry file format. Geophysical data are collected using proprietary software and post-processed as raw instrument files (LAS files) depending on the specific geophysical log type. Each log has an associated LAS file name, for example CFPP-B01_11-03-20_11-11_0024C_.10_-6.20_1527.70_PROC.LAS. The LAS file name represents corehole name (CFPP-B01), date (11-03-20), time stamp (11-11), tool number (0024C), collection interval in feet (0.10), depth range in feet (-6.20_1527.70), and noted processed LAS file (PROC.LAS). Geophysical data are also made available through the USGS GeoLog Locator. Core descriptions and core depths were made based on recovered core and labeled in the field during drilling. Adjustments to core depths were made based on geophysical data and driller communication. Details for each method are described in the corresponding metadata and/or references sections. For LA-ICPMS analysis, zircons were run with reference materials including Plesovice (Slama and others, 2008), Zirconia (Covey and others, 2012), 91500 (Wiedenbeck and others, 1995) and Seiland (Kosler and others, 2008) zircon to correct for time-dependent instrumental fractional and the residual age bias. Two analyses of known reference materials were run for every ten analyses of unknown zircon throughout the analytical session. Analyses from the primary and secondary standards are reported in file CFPP-B01_LA-ICPMS_ZirconAnalysis_Standards.csv. Errors reported for the radiogenic isotope ratios and ages in file CFPP-B01_LA-ICPMS_ZirconAnalysis.csv include uncertainty contributions from counting statistics, background subtraction, and standard calibrations. All errors are reported as 2-sigma. Analyses that intersected glass or mineral inclusions, or appeared to be contaminated by common lead, were rejected and are therefore not reported in file CFPP-B01_LA-ICPMS_ZirconAnalysis.csv For ID-TIMS analysis, errors reported for the radiogenic isotope ratios and ages in file CFPP-B01_ZirconAnalyses_ID-TIMS.csv include uncertainty contributions from counting statistics, instrumental fractionation, tracer uncertainty, and decay constant uncertainty. All errors are reported as 2-sigma and were propagated using the algorithms of Schmitz and Schoene (2007). Details for each method are described in the corresponding metadata and/or references section. Data were reviewed for consistency. Dataset is considered complete for the information presented, as described in the abstract. Users are advised to read the rest of the metadata record for additional details. No formal positional accuracy tests were conducted. No formal positional accuracy tests were conducted. Cascade Drilling contracted by Rizzo International, Inc drilled corehole CFPP-B01 from September 16th, 2020 to October 13th, 2020. The purpose of this drilling was to create a groundwater extraction well that would supply water for the construction and operation of the proposed Carbon Free Power Plant Project (CFPP). Corehole CFPP-B01 was continuously drilled using the mud rotary wireline method from approximately 4 to 1538 feet below land surface (BLS), with a final completion depth of 1538 feet BLS. 20201013 The USGS Idaho National Laboratory Project Office (INLPO) collected natural gamma, neutron, and temperature (tool 9057A), gamma-gamma (tool 0024A), and gyroscopic deviation (tool 9095C) logs on November 3rd, 2020. All logs were collected through the drill rod after drilling was completed. Gyroscopic deviation was run from the bottom of the corehole to the land surface while the remaining logs (natural gamma, neutron, and gamma-gamma) were run from the land surface down. Description of geophysical data provided as part of this data release: Gamma-gamma Dual Density Logs: Gamma-gamma dual density logging detects Compton-scattered gamma rays that originate from a fully encapsulated, 0.2-curie cesium-137 source (Keys, 1990). The gamma tool uses a detachable radioactive source located on the bottom of the tool during operation. The intensity of the gamma radiation reflected to the probe is related to the electron density of the medium after it is backscattered or absorbed in a drill hole, corehole fluid, or surrounding media. In the study, we used an omni-directional, dual detector sonde that responds to bulk density variation in counts per second (CPS), registering higher CPS for lower-density material. Natural Gamma: Natural gamma is included with most Century™ multi-parameter geophysical logging probes, including the neutron (tool 9057A), gamma-gamma (tool 0024C), and gyroscopic deviation (tool 9095C). The natural gamma sensor used for display in this data release was selected from the neutron tool (tool 9057A). In general, the natural gamma sensor confirms the location and thickness of sediment and basalt layers and is compared against core logs. Natural gamma emissions reference changes in sediment lithology and subtle changes in basalt lithology. Natural gamma logs record gamma radiation emitted by naturally occurring radioisotopes within the lithologic layers. Relative variations in gamma ray emissions throughout a corehole allow for the qualitative distinction of lithology with depth. Natural gamma ray emissions were measured in CPS. The vertical resolution of the gamma probe is 1 to 2 ft. Although a change in rock type or alteration associated with a fracture can be detected, the tool requires a thickness of 1 ft to obtain a full (maximum) response (Keys, 1990). Natural gamma logs were recorded coming up out of the corehole at a constant logging speed of approximately 30 feet per minute using 0.1 ft depth collection intervals. The gamma tools, which use various scintillation crystals of different size and sensitivity, are calibrated annually using a standard to American Petroleum Institute (API) units. The natural gamma detector measures total gamma radiation without distinguishing among individual contributions of the various isotopes. The USGS has used natural gamma logging at the INL to identify sedimentary layers in coreholes, but also to distinguish between basalt flows containing different amounts of potassium-40 (Anderson and Bartholomay, 1995). Neutron Log: Neutron logs are a general indicator of changes in formation hydrogen content and are commonly used at the INL to display changes in lithology. Neutron logs reflect layering by recording changes in neutron response to dense media (higher neutron response) and fractured media and sediment (lower neutron response). Neutron porosity is computed using the relationship between the measured neutron (API-N) by the tool and the neutron porosity determined empirically using the Houston University of Petroleum Institute porosity test pit standards through tool manufacture software, Century Log™. In general, the neutron response correlates well with changes in fractured and dense media. The neutron detector continuously records induced radiation produced by bombarding surrounding material (casing, formation, and fluid) with fast neutrons (energies greater than 105 electron volts) from a sealed neutron source, which collide with surrounding atomic nuclei until they are captured (Keys, 1990, section 5, p. 95). The neutron probe used by the USGS INL Project Office has an americium/beryllium neutron source and a helium-3 detector that counts slow (thermal) neutrons (those that have energies less than 0.025 electron volts). Gyroscopic Deviation Log: A corehole gyroscopic deviation survey was completed for corehole CFPP-B01 to determine corehole offset and projected well bore path. The final plan view projection in 300-foot increments is shown in figure file: CFPP-B01_PlanView_GyroLog.pdf. The gyroscopic deviation survey procedure and equations used to compute calculated offset, northing, easting, distance, and azimuth are described in Twining (2016). The gyroscopic survey includes a down log and up log with multiple station measurements collected at the top, middle, and bottom of the survey and post processed using an established procedure. Gyroscopic deviation data were continuously collected at regularly spaced intervals of 0.20 ft and processed using Century Log™ software. Temperature log: Temperature was recorded for the water column in corehole CFPP-B01 using tool 9057A. Temperature was collected coming out of the corehole under nonideal conditions. The recording was collected following drilling activity and may be impacted by drilling water. After logging, geophysical log files were converted to Log ASCII standard (LAS). Geophysical log data can be obtained by downloading attached LAS files or by visiting USGS - GeoLog Locator (USGS, 2022). Geophysical logging LAS files include: 1. Gamma-gamma (tool 0024C) – Long and short spaced density file: CFPP-B01_11-03-20_11-11_0024C_.10_-6.20_1527.70_PROC.LAS 2. Neutron, natural gamma, and temperature (tool 9057A) – Natural gamma, neutron, and temperature file: CFPP-B01_11-03-20_09-52_9057A_.10_-6.10_1527.40_PROC.LAS 3a. Gyroscopic deviation (tool 9095C) up file: CFPP-B01_U_11-03-20_12-36_9095C_.20_-5.40_1505.60_PROC.LAS 3b. Gyroscopic deviation (tool 9095C) down file: CFPP-B01_D_11-03-20_12-36_9095C_.20_-5.40_1505.60_PROC.LAS 3c. Gyroscopic deviation (tool 9095C) processed file: CFPP-B01_P_11-03-20_13-13_9095C_.20_-6.60_1505.40_PROC.LAS Additionally, geophysical data are displayed synergistically to include natural gamma, neutron, and gamma-gamma short and long spaced density, and temperature logs using commercially available software, WellCAD® (CFPP-B01_Geophysical_Log.pdf). The temperature log (tool 9057A) was collected after drilling under nonideal conditions and should be used with caution. References: Anderson, S.R., and Bartholomay, R.C., 1995, Use of natural-gamma logs and cores for determining stratigraphic relations of basalt and sediment at the Radioactive Waste Management Complex, Idaho National Engineering Laboratory, Idaho: Journal of the Idaho Academy of Science, v. 31, no. 1, p. 1–10. Keys, W.S., 1990, Borehole geophysics applied to ground-water investigations: U.S. Geological Survey Techniques of Water-Resources Investigations, book 2, chap. E2, 150 p. Twining, B.V., 2016, Borehole deviation and correction factor data for selected wells in the eastern Snake River Plain aquifer at and near the Idaho National Laboratory, Idaho: U.S. Geological Survey Scientific Investigations Report 2016–5163 (DOE/ID-22241), 23 p., plus appendixes, https://doi.org/10.3133/sir20165163. U.S. Geological Survey, 2024, U.S. Geological Survey GeoLog Locator: U.S. Geological Survey web interface, accessed November 18, 2024, at https://doi.org/10.5066/F7X63KT0 20201103 Drill core was described and photographed using a standardized method described in Johnson and others (2005). The core was then logged with commercial logging software (Logplot™), using a procedure developed by USGS INL Project Office for use at the Lithologic Core Storage Library. The method maximizes description and minimizes interpretation of the drill core. Photographs for logging are taken using a jig designed to control the depth of field, light intensity, angle, and position of core boxes, assuring consistent photographs. Corehole name, depth intervals, and color charts are photographed with the core to assist in photo editing. Core photographs are then color corrected and stacked for presentation using Adobe Photoshop™. In addition to photographs, data collection includes depth below land surface; igneous, soil, and sedimentary structures; a lithologic description; a numeric value for fracture frequency displayed as a histogram; a line graph of mean vesicle size for an interval; and a color curve of vesicle volume percentage. Data is then inserted into the logging software to create the lithologic log (CFPP-B01_Lithologic_Log.pdf). References: Johnson, R.S., Hodges, M.K.V., and Davis, L.C., 2005, The Corelogger Program: A Standardized Digital Method for Logging Core Drilled at the Idaho National Laboratory, Geological Society of America Abstracts with Programs, v. 37, no. 7, p. 284. 20230530 Two samples were collected from the rhyolite intervals in corehole CFPP-B01. One sample was collected from the upper rhyolite interval (1139.7 to 1384.7 feet (ft) below land surface (BLS)) at a depth of 1196 ft BLS, and one sample was collected from the lower rhyolite interval (1512 to 1538.2 ft BLS) at a depth of 1521 BLS. Each sample was collected to target around 100 grams of material, which amounts to samples with a stratigraphic thickness of 0.6-0.8 ft. Samples were named after CFPP-B01 and the depth BLS the sample was collected from to the nearest foot. For example, the sample collected from the upper rhyolite interval is labeled CFPP-B01-1196 and the sample collected from the lower rhyolite interval is labeled CFPP-B01-1521. One half of each sample was used for U-Pb zircon analysis, and the second half was reserved for reference at the USGS Lithologic Core Storage Library. The two rhyolite samples were sent to the Boise State University Isotope Geology Laboratory. Zircons were separated from the hand samples by a combination of crushing, milling, zircon concentration through the use of a water shaking table, and conventional heavy liquid and magnetic separation methods. The separated zircon crystals were placed in a muffle furnace at 900 degrees Celsius for 60 hours to anneal minor radiation damage. Following annealing, zircon grains were hand-picked, mounted, polished, and imaged on a Hitachi TM4000PlusII table-top scanning electron microscope outfitted with a low vacuum secondary electron (SE) cathodoluminescence (CL) UVD detector. CL images guided the location of spot analyses for laser ablation-inductively coupled mass spectroscopy (LA-ICPMS) analysis. Two different zircon populations per hand sample were analyzed for rare-earth elements, high field strength elements, and U-Pb isotope ratios using a Z-series II quadrupole inductively coupled plasma mass spectrometer (ICPMS) with a New Wave Research 213 Nd:YAG UV laser ablation (LA) system. The first experiment targeted larger zircon crystals with a spot size of 30 µm and a pulse rate of 5 Hz. The second experiment targeted medium zircon crystals with a spot size of 40 µm and a pulse rate of 10 Hz. Both experiments were performed to optimize analytical precision and used in-house analytical protocols and data-reduction software. Plesovice zircon (Slama and others, 2008) was used as the primary standard to monitor mass spectrometer bias. Zirconia (Covey and others, 2012), 91500 (Wiedenbeck and others, 1995) and Seiland (Kosler and others, 2008) zircon were used as secondary standards to correct for residual age bias. Analyses of the primary and secondary standards are reported in CFPP-B01_LA-ICPMS_ZirconAnalysis_Standards. No common Pb correction was applied to the final data. Large zircon grains LA-ICPMS results (n=49) and medium zircon grains LA-ICPMS results (n=58) are reported in CFPP-B01_LA-ICPMS_ZirconAnalysis.csv. A subset of zircon grains was chosen on the basis of morphology, zoning, and trace element geochemistry from LA-ICPMS for isotope dilution-thermal ionization mass spectrometry (ID-TIMS). Selected zircon crystals were removed from the epoxy mounts and chemically abraded following the method of Mattinson (2005). U and Pb were purified by anion exchange chromatography following Krogh (1993), eluted, and loaded on a single zone-refined rhenium filament with a mixed silica gel and dilute phosphoric acid solution for mass spectrometry. U and Pb isotope ratios were measured on an IsotopX Isoprobe-T thermal ionization mass spectrometer following the U-Pb geochronology methods of Macdonald and others (2018). ID-TIMS results are reported in CFPP-B01_ZirconAnalyses_ID-TIMS.csv. The file CFPP-B01_LA-ICPMS_ID-TIMS_DataDictionary.csv describes the column name and corresponding data for each column in the LA-ICPMS and ID-TIMS result .csv files. References: Covey, A.K., Braun S.A., Gualda, G.A., Bream, B.R., Fisher, C., Wooden, J.L., and Schmitz, M.D., 2012, Zirconia (NC) zircon as a potential standard: Abstract V23C-2825 presented at 2012 Fall Meeting, AGU, San Francisco, California, 3-7 December Kosler J., Frost, L., and Slama, J., 2008, Lamdate and Lamtool: Spreadsheet-based data reduction for laser ablation ICP-MS, In: Sylvester P. (ed.), Laser ablation ICP-MS in the Earth sciences: Current practices and outstanding issues. Mineralogical Association of Canada, Short Course Series, 40, 315–317 Krogh, T.E., 1973. A low-contamination method for hydrothermal decomposition of zircon and extraction of U and Pb for isotopic age determinations, Geochimica et Cosmochimica Acta, v. 37, p. 485 494 Macdonald, F.A., Schmitz, M.D., Strauss, J.V., Halverson, G.P., Gibson, T.M., Eyster, A., Cox, G., Mamrol, P., and Crowley, J.L., 2018, Cryogenian of Yukon, Precambrian Research, v. 319, p. 114–143. Mattinson, J.M., 2005, Zircon U-Pb chemical abrasion ("CA-TIMS") method: combined annealing and multi-step partial dissolution analysis for improved precision and accuracy of zircon ages, Chemical Geology, v. 220, p. 47-66 Schmitz, M.D., and Schoene, B., 2007, Derivation of isotope ratios, errors and error correlations for U-Pb geochronology using 205Pb-235U-(233U)-spiked isotope dilution thermal ionization mass spectrometric data, Geochemistry Geophysics Geosystems v. 8, no. 8, 20 p. Sláma, J., Kosler, J., Condon, D., Crowley, J., Gerdes, A., Hanchar, J., Horstwood, M., Morris, G., Nasdala, L. and Norberg, N., 2008, Plesovice zircon--A new natural reference material for U-Pb and Hf isotopic microanalysis, Chemical Geology, v. 249, p.1–35 Wiedenbeck, M., Alle, P., Griffin, W.L., Meier, M., Oberli, F., Von Quadt, A., Roddick, J.C., and Spiegel, W., 1995, Three natural zircon standards for U-Th-Pb, Lu-Hf, trace element, and REE analyses, Geostandards Newsletter, v. 19, no. 1, 23 p. 20240624 CFPP-B01_Lithologic_Log.pdf PDF containing depth, core photographs, igneous, soil and sedimentary structures, lithology, lithologic descriptions, and fracture frequency. Description of the data columns in the lithologic log from left to right: The left-most column of every core log is depth, in feet BLS. The second column contains a photograph of the core. The third column contains igneous, soil, or sedimentary symbols to call attention to structures of particular interest. Sediment is classified by the Unified Soil Classification System based on particle size and soil texture (American Society for Testing and Materials, 1985). Sediment particle size is estimated by comparison to a chart based on the Wentworth scale (Wentworth, 1922). The fourth column contains colored lithology symbols. The fifth column is for miscellaneous text, such as where drilling fractures occurred. The sixth column is for written lithologic descriptions. Lithology is described in standard geological terms for color, texture, composition (minerals), xenoliths, alteration, sediment particle size, and structures of interest. The seventh column is a histogram representation for fracture frequency, which is a numeric value based on number of fractures per interval. Fracture frequency numeric values are 0 for intervals of unfractured core, 1 for very slightly fractured core (pieces average 3 to 5 ft), 2 for slightly fractured core (pieces average 1 to 3 ft), 3 for moderately fractured core (pieces average .33 to 1.0 ft), 4 for intensely fractured core (pieces average .0875 to 0.33 ft), 5 for extremely fractured core (pieces average less than .0875 ft). The eighth column contains a line graph of estimated mean vesicle size in 0.1 inches, and a yellow-filled curve that describes the estimated volume percent of vesicles per interval of basalt. Vesicle size and percentage are visually estimated using charts adapted from Compton (1962). Citations: American Society for Testing and Materials, 1985, D 2487-83, Classification of Soils for Engineering Purposes: Annual Book of ASTM Standards v. 04.08, pp. 395–408. Compton, R.R., 1962, Manual of Field Geology, New York, John Wiley & Sons, Inc., 378 p. Wentworth, C.K., 1922, A scale of grade and class terms of clastic sediments: Journal of Geology, v. 30, pp. 377–392 USGS INL Project Office CFPP-B01_Geophysical_Logs PDF containing a summary of the geophysical logs Producer defined CFPP-B01_PlanView_Gyro.pdf PDF showing horizontal displacement for CFPP-B01 in plan view Vendor software Century Display™ CFPP-B01_LAS_Files.zip Zip file containing geophysical logs which are provided in Log ASCII Standard (.LAS) files. Each LAS file contains metadata information at the beginning of the files that include the tool used, the depth range, a list of the geophysical logs collected, and measurement units. Each LAS file represents a different tool used to log the corehole. Producer defined CFPP-B01_LA-ICPMS_ZirconAnalysis.csv Comma Separated Value (CSV) file containing LA-ICPMS analysis data from large and medium zircon grains Producer defined Sample_ID Corehole name and depth of sample collection in feet below land surface Producer defined CFPP-B01-1196 Sample collected at 1196 feet below land surface in corehole CFPP-B01 Producer defined CFPP-B01-1521 Sample collected at 1521 feet below land surface in corehole CFPP-B01 Producer defined Analysis_ID Unique sample identification assigned by the laboratory for an individual analysis. 'L' means that a large zircon grain was analyzed. 'M' means that a medium zircon grain was analyzed. Number at end represents analysis order Producer defined Assigned value Zircon_GrainSize Describes the grain size of the zircon analyzed, whether large or medium Producer defined Large A large zircon grain was analyzed Producer defined Medium A medium zircon grain was analyzed Producer defined U_ppm Concentration of uranium (U) in parts per million (ppm) measured by LA-ICPMS for the individual analysis Producer defined 93 10957 ppm (parts per million) Th_ppm Concentration of thorium (Th) in parts per million (ppm) measured by LA-ICPMS for the individual analysis Producer defined 50 12694 ppm (parts per million) Pb_ppm Concentration of lead (Pb) in parts per million (ppm) measured by LA-ICPMS for the individual analysis Producer defined 0.187 18.061 ppm (parts per million) 0.001 U_Th_Ratio The ratio of the concentration of uranium (U) to the concentration of thorium (Th) Producer defined 0.505 1.965 0.001 206Pb_204Pb_Ratio The ratio of the concentration of lead (Pb, isotope 206) to the concentration of lead (Pb, isotope 204) Producer defined 2 1950 206Pb_204Pb_Ratio_1s 1-sigma uncertainty (percent) for the ratio of the concentration of lead (Pb, isotope 206) to the concentration of lead (Pb, isotope 204). Value of zero means the 1-sigma uncertainty is less than 0.5 Producer defined 0 58 208Pb_232Th_Ratio The ratio of the concentration of lead (Pb, isotope 208) to the concentration of thorium (Th, isotope 232), corrected Producer defined 0.00015 0.01079 0.00001 208Pb_232Th_Ratio_2s 2-sigma uncertainty (percent) for the ratio of the concentration of lead (Pb, isotope 208) to the concentration of thorium (Th, isotope 232), corrected Producer defined 3.1 78.0 0.1 207Pb_235U_Ratio The ratio of the concentration of lead (Pb, isotope 207) to the concentration of uranium (U, isotope 235), corrected Producer defined 0.0015 0.4834 0.004 207Pb_235U_Ratio_2s 2-sigma uncertainty (percent) for the ratio of the concentration of lead (Pb, isotope 207) to the concentration of uranium (U, isotope 235), corrected Producer defined 4.2 112.2 0.1 206Pb_238U_Ratio The ratio of the concentration of lead (Pb, isotope 206) to the concentration of uranium (U, isotope 238), corrected Producer defined 0.00073 0.00499 0.00001 206Pb_238U_Ratio_2s 2-sigma uncertainty (percent) for the ratio of the concentration of lead (Pb, isotope 206) to the concentration of uranium (U, isotope 238), corrected Producer defined 2.0 37.9 0.1 Error_Correlation Error correlation of the 2-sigma uncertainty on the 208Pb/232Th, 207Pb/235U, and 206Pb/238U ratios Producer defined 0.10 0.95 0.01 238U_206Pb_Ratio The ratio of the concentration of uranium (U, isotope 238) to the concentration of lead (Pb, isotope 206), corrected Producer defined 200.26 1361.23 0.01 238U_206Pb_Ratio_2s 2-sigma uncertainty (percent) for the ratio of the concentration of uranium (U, isotope 238) to the concentration of lead (Pb, isotope 206), corrected Producer defined 2.0 37.9 0.1 207Pb_206Pb_Ratio The ratio of the concentration of lead (Pb, isotope 207) to the concentration of lead (Pb, isotope 206), corrected Producer defined 0.01122 0.70216 0.00001 207Pb_206Pb_Ratio_2s 2-sigma uncertainty (percent) for the ratio of the concentration of lead (Pb, isotope 207) to the concentration of lead (Pb, isotope 206), corrected Producer defined 3.5 111.0 0.1 208Pb_232Th_Ratio_AgeMa Age in Ma calculated from the ratio of lead (Pb, isotope 208) to thorium (Th, isotope 232) Producer defined 3.13 216.9 Ma (millions of years before present) 0.1 208Pb_232Th_Ratio_AgeMa_2s 2-sigma uncertainty (Ma) for the age calculated from ratio of lead (Pb, isotope 208) to thorium (Th, isotope 232) Producer defined 0.18 56.71 Ma (millions of years before present) 0.01 208Pb_232Th_Ratio_AgeMa_2s_sys 2-sigma systematic uncertainty (Ma) for the age calculated from ratio the of lead (Pb, isotope 208) to thorium (Th, isotope 232) Producer defined 0.22 56.90 Ma (millions of years before present) 0.01 207Pb_206Pb_Ratio_AgeMa Age in Ma calculated from the ratio of lead (Pb, isotope 207) to lead (Pb, isotope 206) Producer defined << empty cell >> Age was not calculated for this analysis Producer defined -4905 4735 Ma (millions of years before present) 207Pb_206Pb_Ratio_AgeMa_2s 2-sigma uncertainty (Ma) for the age calculated from the ratio of lead (Pb, isotope 207) to lead (Pb, isotope 206) Producer defined << empty cell >> Uncertainty was not calculated for this measurement Producer defined 85 8660 Ma (millions of years before present) 207Pb_206Pb_Ratio_AgeMa_2s_sys 2-sigma systematic uncertainty (Ma) for the age calculated from the ratio of lead (Pb, isotope 207) to lead (Pb, isotope 206) Producer defined << empty cell >> Systematic uncertainty was not calculated for this analysis Producer defined 85 8660 Ma (millions of years before present) 207Pb_235U_Ratio_AgeMa Age in Ma calculated from the ratio of lead (Pb, isotope 207) to uranium (U, isotope 235) Producer defined 1.5 400.4 Ma (millions of years before present) 0.1 207Pb_235U_Ratio_AgeMa_2s 2-sigma uncertainty (Ma) for the age calculated from ratio of lead (Pb, isotope 207) to uranium (U, isotope 235) Producer defined 0.32 80.85 Ma (millions of years before present) 0.01 207Pb_235U_Ratio_AgeMa_2s_sys 2-sigma systematic uncertainty (Ma) for the age calculated from ratio of lead (Pb, isotope 207) to uranium (U, isotope 235) Producer defined 0.33 80.91 Ma (millions of years before present) 0.01 206Pb_238U_Ratio_AgeMa Age in Ma calculated from the ratio of lead (Pb, isotope 206) to uranium (U, isotope 238) Producer defined 4.73 32.11 Ma (millions of years before present) 0.01 206Pb_238U_Ratio_AgeMa_2s 2-sigma uncertainty (Ma) for the age calculated from the ratio of lead (Pb, isotope 206) to uranium (U, isotope 238) Producer defined 0.15 7.43 Ma (millions of years before present) 0.01 206Pb_238U_Ratio_AgeMa_2s_sys 2-sigma systematic uncertainty (Ma) for the age calculated from the ratio of lead (Pb, isotope 206) to uranium (U, isotope 238) Producer defined 0.16 7.44 Ma (millions of years before present) 0.01 P_ppm Concentration of phosphorous (P) in parts per million (ppm) measured by LA-ICPMS for the individual analysis Producer defined 95 87835 ppm (parts per million) Ti_ppm Concentration of titanium (Ti) in parts per million (ppm) measured by LA-ICPMS for the individual analysis Producer defined 4.2 135.1 ppm (parts per million) 0.1 Y_ppm Concentration of yttrium (Y) in parts per million (ppm) measured by LA-ICPMS for the individual analysis Producer defined 620 16391 ppm (parts per million) Nb_ppm Concentration of niobium (Nb) in parts per million (ppm) measured by LA-ICPMS for the individual analysis Producer defined 2.7 539.7 ppm (parts per million) 0.1 La_ppm Concentration of lanthanum (La) in parts per million (ppm) measured by LA-ICPMS for the individual analysis Producer defined << empty cell >> Element concentration is below the detection limit of the LA-ICPMS machine Producer defined 0.1 4090.4 ppm (parts per million) 0.1 Ce_ppm Concentration of cerium (Ce) in parts per million (ppm) measured by LA-ICPMS for the individual analysis Producer defined 6.9 9140.6 ppm (parts per million) 0.1 Pr_ppm Concentration of praseodymium (Pr) in parts per million (ppm) measured by LA-ICPMS for the individual analysis Producer defined << empty cell >> Element concentration is below the detection limit of the LA-ICPMS machine Producer defined 0.03 1073.36 ppm (parts per million) 0.01 Nd_ppm Concentration of neodymium (Nd) in parts per million (ppm) measured by LA- ICPMS for the individual analysis Producer defined 0.5 4953.6 ppm (parts per million) 0.1 Sm_ppm Concentration of samarium (Sm) in parts per million (ppm) measured by LA-ICPMS for the individual analysis Producer defined 0.5 1087.6 ppm (parts per million) 0.1 Eu_ppm Concentration of europium (Eu) in parts per million (ppm) measured by LA-ICPMS for the individual analysis Producer defined 0.23 50.69 ppm (parts per million) 0.01 Gd_ppm Concentration of gadolinium (Gd) in parts per million (ppm) measured by LA-ICPMS for the individual analysis Producer defined 10.2 959.0 ppm (parts per million) 0.1 Tb_ppm Concentration of terbium (Tb) in parts per million (ppm) measured by LA-ICPMS for the individual analysis Producer defined 3.9 219.2 ppm (parts per million) 0.1 Dy_ppm Concentration of dysprosium (Dy) in parts per million (ppm) measured by LA-ICPMS for the individual analysis Producer defined 55 2322 ppm (parts per million) Ho_ppm Concentration of holmium (Ho) in parts per million (ppm) measured by LA-ICPMS for the individual analysis Producer defined 22.3 666.6 ppm (parts per million) 0.1 Er_ppm Concentration of erbium (Er) in parts per million (ppm) measured by LA-ICPMS for the individual analysis Producer defined 100 2560 ppm (parts per million) Tm_ppm Concentration of thulium (Tm) in parts per million (ppm) measured by LA-ICPMS for the individual analysis Producer defined 25.7 633.0 ppm (parts per million) 0.1 Yb_ppm Concentration of ytterbium (Yb) in parts per million (ppm) measured by LA-ICPMS for the individual analysis Producer defined 288 6745 ppm (parts per million) 0.1 Lu_ppm Concentration of lutetium (Lu) in parts per million (ppm) measured by LA-ICPMS for the individual analysis Producer defined 32.2 611.0 ppm (parts per million) 0.1 Hf_ppm Concentration of hafnium (Hf) in parts per million (ppm) measured by LA-ICPMS for the individual analysis Producer defined 8558 21325 ppm (parts per million) Ta_ppm Concentration of tantalum (Ta) in parts per million (ppm) measured by LA-ICPMS for the individual analysis Producer defined 1.04 120.04 ppm (parts per million) 0.01 CFPP-B01_LA-ICPMS_ZirconAnalysis_Standards.csv Comma Separated Value (CSV) file containing LA-ICPMS analysis data for primary and secondary standards analyzed during CFPP-B01 large and medium zircon grain analysis Producer defined Standard_Reference Reference of the zircon analyzed as a standard Producer defined (Slama and others, 2008) Reference zircon sourced from Sláma, J., Kosler, J., Condon, D., Crowley, J., Gerdes, A., Hanchar, J., Horstwood, M., Morris, G., Nasdala, L. and Norberg, N., 2008, Plesovice zircon--A new natural reference material for U-Pb and Hf isotopic microanalysis, Chemical Geology, v. 249, p.1–35 Producer defined (Wiedenbeck and others, 1995) Reference zircon sourced from Wiedenbeck, M., Alle, P., Griffin, W.L., Meier, M., Oberli, F., Von Quadt, A., Roddick, J.C., and Spiegel, W., 1995, Three natural zircon standards for U-Th-Pb, Lu-Hf, trace element, and REE analyses, Geostandards Newsletter, v. 19, no. 1, 23 p. Producer defined (Kosler and others, 2008) Reference zircon sourced from Kosler J., Frost, L., and Slama, J., 2008, Lamdate and Lamtool: Spreadsheet-based data reduction for laser ablation ICP-MS, In: Sylvester P. (ed.), Laser ablation ICP-MS in the Earth sciences: Current practices and outstanding issues. Mineralogical Association of Canada, Short Course Series, 40, 315–317 Producer defined (Covey and others, 2012) Reference zircon sourced from Covey, A.K., Braun S.A., Gualda, G.A., Bream, B.R., Fisher, C., Wooden, J.L., and Schmitz, M.D., 2012, Zirconia (NC) zircon as a potential standard: Abstract V23C-2825 presented at 2012 Fall Meeting, AGU, San Francisco, California, 3-7 December Producer defined Standard_Type Describes if the standard was analyzed as a primary or secondary standard Producer defined Primary Zircon analyzed as a primary standard Producer defined Secondary Zircon analyzed as a secondary standard Producer defined Analysis_ID Unique sample identification assigned by the laboratory for an individual analysis. 'L' means that this standard was analyzed when large zircon crystals from CFPP-B01 were analyzed. 'M' means that this standard was analyzed when medium zircon crystals from CFPP-B01 were analyzed. Number at end represents analysis order Producer defined Assigned value SampleRun_Type Describes if the standard was run when large or medium zircon grains from the sample were being analyzed Producer defined Large Standard was analyzed at the same time large zircon grains were being analyzed Producer defined Medium Standard was analyzed at the same time medium zircon grains were being analyzed Producer defined U_ppm Concentration of uranium (U) in parts per million (ppm) measured by LA-ICPMS for the individual analysis Producer defined 82 768 ppm (parts per million) Th_ppm Concentration of thorium (Th) in parts per million (ppm) measured by LA-ICPMS for the individual analysis Producer defined 32.0 1962.8 ppm (parts per million) 0.1 Pb_ppm Concentration of lead (Pb) in parts per million (ppm) measured by LA-ICPMS for the individual analysis Producer defined 11.0 51.6 ppm (parts per million) 0.1 U_Th_Ratio The ratio of the concentration of uranium (U) to the concentration of thorium (Th) Producer defined 0.079 4.854 0.001 206Pb_204Pb_Ratio The ratio of the concentration of lead (Pb, isotope 206) to the concentration of lead (Pb, isotope 204) Producer defined 162 206841 206Pb_204Pb_Ratio_1s 1-sigma uncertainty (percent) for the ratio of the concentration of lead (Pb, isotope 206) to the concentration of lead (Pb, isotope 204). Value of zero means the 1-sigma uncertainty is less than 0.5 Producer defined 3 7196 208Pb_232Th_Ratio The ratio of the concentration of lead (Pb, isotope 208) to the concentration of thorium (Th, isotope 232), corrected Producer defined 0.01213 0.05490 0.00001 208Pb_232Th_Ratio_2s 2-sigma uncertainty (percent) for the ratio of the concentration of lead (Pb, isotope 208) to the concentration of thorium (Th, isotope 232), corrected Producer defined 1.02 22.1 0.1 207Pb_235U_Ratio The ratio of the concentration of lead (Pb, isotope 207) to the concentration of uranium (U, isotope 235), corrected Producer defined 0.3413 2.5008 0.0001 207Pb_235U_Ratio_2s 2-sigma uncertainty (percent) for the ratio of the concentration of lead (Pb, isotope 207) to the concentration of uranium (U, isotope 235), corrected Producer defined 1.9 12.5 0.1 206Pb_238U_Ratio The ratio of the concentration of lead (Pb, isotope 206) to the concentration of uranium (U, isotope 238), corrected Producer defined 0.05069 0.18626 0.00001 206Pb_238U_Ratio_2s 2-sigma uncertainty (percent) for the ratio of the concentration of lead (Pb, isotope 206) to the concentration of uranium (U, isotope 238), corrected Producer defined 1.3 7.8 0.1 Error_Correlation Error correlation of the 2-sigma uncertainty on the 208Pb/232Th, 207Pb/235U, and 206Pb/238U ratios Producer defined 0.33 0.95 0.01 238U_206Pb_Ratio The ratio of the concentration of uranium (U, isotope 238) to the concentration of lead (Pb, isotope 206), corrected Producer defined 5.37 19.73 0.01 238U_206Pb_Ratio_2s 2-sigma uncertainty (percent) for the ratio of the concentration of uranium (U, isotope 238) to the concentration of lead (Pb, isotope 206), corrected Producer defined 1.3 7.8 0.1 207Pb_206Pb_Ratio The ratio of the concentration of lead (Pb, isotope 207) to the concentration of lead (Pb, isotope 206), corrected Producer defined 0.04884 0.19766 0.00001 207Pb_206Pb_Ratio_2s 2-sigma uncertainty (percent) for the ratio of the concentration of lead (Pb, isotope 207) to the concentration of lead (Pb, isotope 206), corrected Producer defined 0.9 10.7 0.1 208Pb_232Th_Ratio_AgeMa Age in Ma calculated from the ratio of lead (Pb, isotope 208) to thorium (Th, isotope 232) Producer defined 244 1080 Ma (millions of years before present) 208Pb_232Th_Ratio_AgeMa_2s 2-sigma uncertainty (Ma) for the age calculated from ratio of lead (Pb, isotope 208) to thorium (Th, isotope 232) Producer defined 2.9 108.1 Ma (millions of years before present) 0.1 208Pb_232Th_Ratio_AgeMa_2s_sys 2-sigma systematic uncertainty (Ma) for the age calculated from ratio the of lead (Pb, isotope 208) to thorium (Th, isotope 232) Producer defined 6.8 129.4 Ma (millions of years before present) 0.1 207Pb_206Pb_Ratio_AgeMa Age in Ma calculated from the ratio of lead (Pb, isotope 207) to lead (Pb, isotope 206). Blank cells mean age was not calculated for that individual analysis Producer defined 140 2807 Ma (millions of years before present) 207Pb_206Pb_Ratio_AgeMa_2s 2-sigma uncertainty (Ma) for the age calculated from the ratio of lead (Pb, isotope 207) to lead (Pb, isotope 206). Blank cells mean uncertainty was not calculated for that individual analysis Producer defined 20.9 234.3 Ma (millions of years before present) 0.1 207Pb_206Pb_Ratio_AgeMa_2s_sys 2-sigma systematic uncertainty (Ma) for the age calculated from the ratio of lead (Pb, isotope 207) to lead (Pb, isotope 206). Blank cells mean systematic uncertainty was not calculated for that individual analysis Producer defined 22.0 234.9 Ma (millions of years before present) 0.1 207Pb_235U_Ratio_AgeMa Age in Ma calculated from the ratio of lead (Pb, isotope 207) to uranium (U, isotope 235) Producer defined 298 1272 Ma (millions of years before present) 207Pb_235U_Ratio_AgeMa_2s 2-sigma uncertainty (Ma) for the age calculated from ratio of lead (Pb, isotope 207) to uranium (U, isotope 235) Producer defined 5.39 51.50 Ma (millions of years before present) 0.01 207Pb_235U_Ratio_AgeMa_2s_sys 2-sigma systematic uncertainty (Ma) for the age calculated from ratio of lead (Pb, isotope 207) to uranium (U, isotope 235) Producer defined 5.93 51.90 Ma (millions of years before present) 0.01 206Pb_238U_Ratio_AgeMa Age in Ma calculated from the ratio of lead (Pb, isotope 206) to uranium (U, isotope 238) Producer defined 319 1101 Ma (millions of years before present) 206Pb_238U_Ratio_AgeMa_2s 2-sigma uncertainty (Ma) for the age calculated from the ratio of lead (Pb, isotope 206) to uranium (U, isotope 238) Producer defined 4.42 57.24 Ma (millions of years before present) 0.01 206Pb_238U_Ratio_AgeMa_2s_sys 2-sigma systematic uncertainty (Ma) for the age calculated from the ratio of lead (Pb, isotope 206) to uranium (U, isotope 238) Producer defined 5.25 59.00 Ma (millions of years before present) 0.01 P_ppm Concentration of phosphorous (P) in parts per million (ppm) measured by LA-ICPMS for the individual analysis Producer defined << empty cell >> Element concentration is below the detection limit of the LA-ICPMS machine Producer defined 5 363 ppm (parts per million) Ti_ppm Concentration of titanium (Ti) in parts per million (ppm) measured by LA-ICPMS for the individual analysis Producer defined << empty cell >> Element concentration is below the detection limit of the LA-ICPMS machine Producer defined 0.4 73.2 ppm (parts per million) Y_ppm Concentration of yttrium (Y) in parts per million (ppm) measured by LA-ICPMS for the individual analysis Producer defined 132 1042 ppm (parts per million) Nb_ppm Concentration of niobium (Nb) in parts per million (ppm) measured by LA-ICPMS for the individual analysis Producer defined 0.07 6.33 ppm (parts per million) 0.01 La_ppm Concentration of lanthanum (La) in parts per million (ppm) measured by LA-ICPMS for the individual analysis Producer defined << empty cell >> Element concentration is below the detection limit of the LA-ICPMS machine Producer defined 0.02 0.44 ppm (parts per million) 0.01 Ce_ppm Concentration of cerium (Ce) in parts per million (ppm) measured by LA-ICPMS for the individual analysis Producer defined 1.01 122.07 ppm (parts per million) 0.01 Pr_ppm Concentration of praseodymium (Pr) in parts per million (ppm) measured by LA-ICPMS for the individual analysis Producer defined << empty cell >> Element concentration is below the detection limit of the LA-ICPMS machine Producer defined 0.004 2.073 ppm (parts per million) 0.001 Nd_ppm Concentration of neodymium (Nd) in parts per million (ppm) measured by LA-ICPMS for the individual analysis Producer defined << empty cell >> Element concentration is below the detection limit of the LA-ICPMS machine Producer defined 0.03 35.19 ppm (parts per million) 0.01 Sm_ppm Concentration of samarium (Sm) in parts per million (ppm) measured by LA-ICPMS for the individual analysis Producer defined << empty cell >> Element concentration is below the detection limit of the LA-ICPMS machine Producer defined 0.18 44.55 ppm (parts per million) 0.01 Eu_ppm Concentration of europium (Eu) in parts per million (ppm) measured by LA-ICPMS for the individual analysis Producer defined << empty cell >> Element concentration is below the detection limit of the LA-ICPMS machine Producer defined 0.09 22.96 ppm (parts per million) 0.01 Gd_ppm Concentration of gadolinium (Gd) in parts per million (ppm) measured by LA-ICPMS for the individual analysis Producer defined 1.18 95.27 ppm (parts per million) 0.01 Tb_ppm Concentration of terbium (Tb) in parts per million (ppm) measured by LA-ICPMS for the individual analysis Producer defined 0.69 24.89 ppm (parts per million) 0.01 Dy_ppm Concentration of dysprosium (Dy) in parts per million (ppm) measured by LA-ICPMS for the individual analysis Producer defined 12.7 186.7 ppm (parts per million) 0.1 Ho_ppm Concentration of holmium (Ho) in parts per million (ppm) measured by LA-ICPMS for the individual analysis Producer defined 5.07 42.66 ppm (parts per million) 0.01 Er_ppm Concentration of erbium (Er) in parts per million (ppm) measured by LA-ICPMS for the individual analysis Producer defined 17.7 122.8 ppm (parts per million) 0.1 Tm_ppm Concentration of thulium (Tm) in parts per million (ppm) measured by LA-ICPMS for the individual analysis Producer defined 3.92 23.70 ppm (parts per million) 0.01 Yb_ppm Concentration of ytterbium (Yb) in parts per million (ppm) measured by LA-ICPMS for the individual analysis Producer defined 39 219 ppm (parts per million) Lu_ppm Concentration of lutetium (Lu) in parts per million (ppm) measured by LA-ICPMS for the individual analysis Producer defined 1.75 20.90 ppm (parts per million) 0.01 Hf_ppm Concentration of hafnium (Hf) in parts per million (ppm) measured by LA-ICPMS for the individual analysis Producer defined 6056 13506 ppm (parts per million) Ta_ppm Concentration of tantalum (Ta) in parts per million (ppm) measured by LA-ICPMS for the individual analysis Producer defined << empty cell >> Element concentration is below the detection limit of the LA-ICPMS machine Producer defined 0.10 4.69 ppm (parts per million) 0.10 CFPP-B01_ID-TIMS_ZirconAnalysis.csv Comma Separated Value (CSV) file containing ID-TIMS analysis data from selected zircons Producer defined Sample_ID Corehole name and depth of sample collection in feet below land surface Producer defined CFPP-B01_1196 Sample collected at 1196 feet below land surface in corehole CFPP-B01 Producer defined CFPP-B01_1521 Sample collected at 1521 feet below land surface in corehole CFPP-B01 Producer defined Analysis_ID Sample identification assigned by the laboratory for an individual analysis of a single zircon grain or fragment Producer defined Assigned value Th_U_Ratio The model ratio of thorium (Th) and uranium (U) iteratively calculated from the radiogenic 208Pb/206Pb ratio and 206Pb/238U date Producer defined 0.531 0.959 0.001 206Pb* Radiogenic lead (Pb*, isotope 206) multiplied by 10^-13 mol Producer defined 0.0304 0.2027 0.0001 206Pb*_Mol_Per Mole percent of radiogenic lead (Pb*, isotope 206) with respect to radiogenic, blank, and initial common Pb Producer defined 82.69 98.71 0.01 Pb*_Pbc_Ratio The ratio of radiogenic lead (Pb*) and common lead (Pbc) Producer defined 1.6 25.9 0.1 Pbc Concentration of common lead (Pbc) in picograms (pg) Producer defined 0.22 1.16 pg (picograms) 0.01 206Pb_204Pb_Ratio The measured ratio of lead (Pb, isotope 206) and lead (Pb, isotope 204) corrected for spike and fractionation only, where fractionation was calculated from the measured double spike Pb and U ratios Producer defined 104 1403 208Pb_206Pb_Ratio The ratio of lead (Pb, isotope 208) and lead (Pb, isotope 206) corrected for fractionation, spike, and common Pb. All common Pb was assumed to be procedural blank: 206Pb/204Pb = 18.042 +/- 0.61%; 207Pb/204Pb = 15.537 +/- 0.52%; 208Pb/204Pb = 37.686 +/- 0.63%, where all uncertainties are 1-sigma Producer defined 0.173 0.312 0.001 207Pb_206Pb_Ratio The ratio of lead (Pb, isotope 207) and lead (Pb, isotope 206) corrected for fractionation, spike, and common Pb. All common Pb was assumed to be procedural blank: 206Pb/204Pb = 18.042 +/- 0.61%; 207Pb/204Pb = 15.537 +/- 0.52%; 208Pb/204Pb = 37.686 +/- 0.63%, where all uncertainties are 1-sigma Producer defined 0.04480 0.04751 0.00001 208Pb_207Pb_206Pb_Ratio_2s 2-sigma percent error on the 208Pb/206Pb and 207Pb/206Pb ratios propagated using the algorithms of Schmitz and Schoene (2007) Producer defined 0.401 5.527 0.001 207Pb_235U_Ratio The ratio of lead (Pb, isotope 207) and uranium (U, isotope 235) corrected for fractionation, spike, and common Pb. All common Pb was assumed to be procedural blank: 206Pb/204Pb = 18.042 +/- 0.61%; 207Pb/204Pb = 15.537 +/- 0.52%; 208Pb/204Pb = 37.686 +/- 0.63%, where all uncertainties are 1-sigma Producer defined 0.006132 0.006787 0.000001 207Pb_235U_Ratio_2s 2-sigma percent error on the 207Pb/235U ratio propagated using the algorithms of Schmitz and Schoene (2007) Producer defined 0.454 5.868 0.001 206Pb_238U_Ratio The ratio of lead (Pb, isotope 206) and uranium (U, isotope 238) corrected for fractionation, spike, and common Pb. All common Pb was assumed to be procedural blank: 206Pb/204Pb = 18.042 +/- 0.61%; 207Pb/204Pb = 15.537 +/- 0.52%; 208Pb/204Pb = 37.686 +/- 0.63%, where all uncertainties are 1-sigma Producer defined 0.000989 0.001057 0.000001 206Pb_238U_Ratio_2s 2-sigma percent error on the 207Pb/238U ratio propagated using the algorithms of Schmitz and Schoene (2007) Producer defined 0.179 0.510 0.001 206Pb_238U_Ratio_CorrCoef Correction coefficient for the 206Pb/238U ratio Producer defined 0.717 0.767 0.001 207Pb_206Pb_Ratio_AgeMa Age in Ma calculated from the ratio of lead (Pb, isotope 207) to lead (Pb, isotope 206) based on the decay constants of Jaffey and others (1971) and the terrestrial 238U/235U of Hiess and others (2012). 207Pb/206Pb dates reported here corrected for initial disequilibrium in 230Th/238U using D(Th/U) = 0.2 Producer defined -68 74 Ma (millions of years before present) 207Pb_206Pb_Ratio_AgeMa_2s 2-sigma uncertainty (Ma) for the age calculated from ratio of lead (Pb, isotope 207) to lead (Pb, isotope 206) propagated using the algorithms of Schmitz and Schoene (2007) Producer defined 10 134 Ma (millions of years before present) 207Pb_235U_Ratio_AgeMa Age in Ma calculated from the ratio of lead (Pb, isotope 207) to uranium (U, isotope 235) based on the decay constants of Jaffey and others (1971) and the terrestrial 238U/235U of Hiess and others (2012) Producer defined 6.21 6.87 Ma (millions of years before present) 0.01 207Pb_235U_Ratio_AgeMa_2s 2-sigma uncertainty (Ma) for the age calculated from ratio of lead (Pb, isotope 207) to uranium (U, isotope 235) propagated using the algorithms of Schmitz and Schoene (2007) Producer defined 0.03 0.36 Ma (millions of years before present) 0.01 206Pb_238U_Ratio_AgeMa Age in Ma calculated from the ratio of lead (Pb, isotope 206) to uranium (U, isotope 238) based on the decay constants of Jaffey and others (1971) and the terrestrial 238U/235U of Hiess and others (2012). 206Pb/238U dates reported here corrected for initial disequilibrium in 230Th/238U using D(Th/U) = 0.2 Producer defined 6.372 6.810 Ma (millions of years before present) 0.001 206Pb_238U_Ratio_AgeMa_2s 2-sigma uncertainty (Ma) for the age calculated from ratio of lead (Pb, isotope 206) to uranium (U, isotope 238) propagated using the algorithms of Schmitz and Schoene (2007) Producer defined 0.012 0.032 Ma (millions of years before present) 0.001 CFPP-B01_LA-ICPMS_ID-TIMS_DataDictionary.csv Comma Separated Value (CSV) file describing and defining the fields in the data tables included as part of this data release Producer defined Table Name of the file or table containing data Producer defined Assigned value Field Name of the column being referenced Producer defined Assigned value Field_Description Description or definition of the field Producer defined Assigned value Units Unit of measurement for the field if applicable Producer defined << empty cell >> Associated field has no unit of measurement Producer defined Assigned value. Associated field has a unit of measurement This data release contains 12 files: -1 PDF file providing the lithologic log -5 LAS files providing the raw data from the geophysical logs in a .zip folder -1 PDF file providing the geophysical logs -1 PDF file providing the plan view deviation figure -3 CSV files providing U-Pb zircon analyses -1 CSV file providing a description of column headers for CSV files This study U.S. Geological Survey - ScienceBase mailing address

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Denver CO 80225 United States 1-888-275-8747 sciencebase@usgs.gov Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data for other purposes, nor on all computer systems, nor shall the act of distribution constitute any such warranty. Digital Data https://doi.org/10.5066/P13FB9DZ None 20250214 Haley M. Dietz U.S. Geological Survey, NW_PACIFIC ISLAND REG Geologist mailing and physical

1955 N. Fremont Ave.

Idaho Falls ID 83415 208-526-2438 hdietz@usgs.gov FGDC Biological Data Profile of the Content Standard for Digital Geospatial Metadata FGDC-STD-001.1-1999