Emond, A.M.
Fusso, L.A.
Geotech Ltd.
20240625
Kuskokwim Airborne Magnetic and Radiometric Survey, Sischu Mountains
digital, data
Geophysical Report
GPR 2024-1
Fairbanks, Alaska, United States
Alaska Division of Geological & Geophysical Surveys
Suggested Citation: Emond, A.M., Fusso, L.A., Geotech Ltd., 2024, Kuskokwim airborne magnetic and radiometric survey, Sischu Mountains: Alaska Division of Geological & Geophysical Surveys Geophysical Report 2024-1, https://doi.org/10.14509/31094
https://doi.org/10.14509/31094
Kuskokwim airborne magnetic and radiometric survey, Sischu Mountains, Geophysical Report 2024-1, covers parts of the Ruby, Kantishna River, Mt. McKinley, Medfra, and Ophir quadrangles north of McGrath, Alaska. Magnetic and radiometric data were collected with a helicopter between July 14, 2023, and October 15, 2023, by Geotech Ltd. The survey contains a single block covering 8,008 km2. A total of 25,878 line-kilometers were collected. The magnetometer was installed inside the stinger attached to the helicopter nose. The airborne gamma-ray spectrometer was mounted on the interior floor of the helicopter cabin. The block was flown with a line spacing of 400 m. The mean ground clearance is 192 m with a nominal survey speed of 142 km/hour. The data, as well as additional metadata, are available from the DGGS website: http://doi.org/10.14509/31094.
The data from the Sischu Mountains block of the Kuskokwim airborne magnetic and radiometric survey will be used to improve the understanding of the area's geology and mineral potential and promote resource exploration. This survey is part of planned continuous regional geophysical data coverage of the greater Kuskokwim Mountains region.
>ascii_data: ASCII format line data, other ASCII data
>databases_geosoft: Geosoft format database of final line data, other Geosoft format databases
>documents: Project report and other supporting files
>grids_geosoft: Geosoft-format gridded data
>grids_tif: Geographically registered data value rasters of gridded data, GeoTiff format.
>kmz: Keyhole markup language (kml) kmz archive files of project data. Viewable in Google Earth and other compatible programs
>maps_geosoft_format: Maps as Geosoft packed map files
>maps_pdf_format: Printable and geographically registered maps in pdf format. Compatible with mobile device navigation and desktop mapping applications.
>vector_data: Line path and survey boundary in ESRI shapefile (SHP) format
2023
ground condition
None planned
-156.541340
-152.649596
64.307870
63.210255
USGS Metadata Identifier
USGS:66ec71b2d34e0606a9dc024e
ISO 19115 Topic Category
geoscientificInformation
Alaska Division of Geological & Geophysical Surveys
Aeromagnetic
Aeromagnetic Data
Aeromagnetic Map
Aeromagnetic Survey
Airborne Geophysical Survey
Airborne Geophysical/Geological Mineral Inventory
Analytic Signal
DGGS
Exploration
Geologic
Geology
Geophysical Map
Geophysical Survey
Geophysics
Geophysics Search Tag
Gridded Data
Line Data
Magnetic Data
Magnetic Survey
Magnetic Susceptibility
Magnetics
Mineral Development
Mineral Exploration
Mineral Localities
Mineral Resources
Minerals
Radiometric Survey
Radiometrics
Remote Sensing
Alaska Division of Geological & Geophysical Surveys
Alder Creek
Attonock Mount
Baker Creek
Bear Creek
Beaver Creek
Big Beaver Creek
Black Creek
Boston Creek
Boulder Creek
Bridge Creek
Butte Creek
Canyon Creek
Clearwater Creek
Colorado Creek
Colorado Creek Mine
Cottonwood Creek
Creston Creek
Cripple Creek
Cripple Creek Mountains
Dolomite Creek
Dominion Creek
Dyckman Mountain
Eden Creek
Figure Creek
Fire Creek
Flat Creek
Folger Creek
Fossil Mountain
Graham Creek
Granite Creek
Hardscrabble Creek
Hosmer Creek
Idaho Creek
Innoko Mining District
Johns Creek
Jones Creek
Kimbley Creek
King Creek
Kinger Creek
Limestone Mountain
Lind Creek
Lone Indian Mountain
Lynx Creek
Marten Creek
McGrath Mining District
Meadow Creek
Medicine Creek
Montana Creek
Mystery Creek
Mystery Mountains
Novi Mountain
Nowitna River
Page Mountain
Paradise Pass
Pass Creek
Quartz Creek
Ruby Mining District
Rungun Creek
Scow Harry Creek
Sethkokna River
Shellman Creek
Shepherd Creek
Shepherd Mountains
Shorty Creek
Sischu Creek
Sischu Mountains
Soda Creek
Stone Creek
Stone Mountain
Submarine Creek
Sulukna River
Sunshine Mountains
Susulatna Hills
Susulatna River
Telsitna River
Titna River
Von Frank Creek
Von Frank Mountain
Washington Creek
Whirlpool Creek
Whirlwind Creek
Whirlwind Ridge
White Mountain Creek
Wyoming Creek
No access constraints. This report, map, and/or dataset is available directly from the State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys (see contact information below).
No use constraints. We request that the suggested citation be included in any publications that reference or utilize these data.
Alaska Division of Geological & Geophysical Surveys
Metadata Manager
Mailing and Physical
3354 College Road
Fairbanks
AK
99709-3707
USA
(907)451-5020
(907)451-5050
dggspubs@alaska.gov
8 am to 4:30 pm, Monday through Friday, except State holidays
Please view our website (https://www.dggs.alaska.gov) for the latest information on available data. Please contact us using the e-mail address provided above when possible.
This work was supported by the U.S. Geological Survey's Earth MRI program grants G22AC00475, and additional support was provided by the State of Alaska Capital Improvement Project Funds. The views and conclusions contained in this document are those of the authors. They should not be interpreted as necessarily representing the official policies, either expressed or implied, of the U.S. Government. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
Geophysical data were acquired according to the contractor, contract, and request-for-proposals specifications. For additional detail about survey parameters, see the accompanying project report available in the documents directory of this data distribution package.
Data originate from one company using DGGS contract specifications for all data (see accompanying project report). The originating coordinate system was retained for all publication products.
This data set includes files that contain processed aeromagnetic measurements, radiometric measurements, altimetry measurements, and locational data for the entire survey area. The data release is complete.
Station coordinates were positioned using a real-time or post-processed corrected differential GPS.
Data collection, processing, and delivery - The airborne geophysical data were acquired under contract with Geotech Ltd. Airborne geophysical data for the areas were acquired and processed by Geotech Ltd. The contractor's project report and other supporting documents are in the 'documents' digital data package. They provide detailed documentation of the system specifications, data collection, processing, and delivery.
2023
Data cataloged for archival and publication - Final data were published and archived by DGGS.
2024
Raster
Universal Transverse Mercator
4
0.999600
-159
0
500000.000000
0
coordinate pair
0.00000001
0.00000001
Meters
WGS84
WGS 84
6378137
298.257223563
ascii_data
ASCII format line data, other ASCII data
Geotech Ltd
databases_geosoft
Geosoft format database of final line data, other Geosoft format databases
Geotech Ltd
documents
Project report and other supporting files
Geotech Ltd and Alaska Division of Geological & Geophysical Surveys (DGGS)
grids_geosoft
Geosoft-format gridded data
Geotech Ltd and Alaska Division of Geological & Geophysical Surveys (DGGS)
grids_tif
Geographically registered data value rasters of gridded data, GeoTiff format.
Alaska Division of Geological & Geophysical Surveys (DGGS)
kmz
Keyhole markup language (kml) kmz archive files of project data. Viewable in Google Earth and other compatible programs
Alaska Division of Geological & Geophysical Surveys (DGGS)
maps_geosoft_format
Maps as Geosoft packed map files
Geotech Ltd
maps_pdf_format
Printable and geographically registered maps in pdf format. Compatible with mobile device navigation and desktop mapping applications.
Geotech Ltd
vector_data
Line path and survey boundary in ESRI shapefile (SHP) format
Alaska Division of Geological & Geophysical Surveys (DGGS)
Alaska Division of Geological & Geophysical Surveys
Metadata Manager
mailing and physical
3354 College Road
Fairbanks
AK
99709-3707
USA
(907)451-5020
(907)451-5050
dggspubs@alaska.gov
8 am to 4:30 pm, Monday through Friday, except State holidays
Please view our website (https://www.dggs.alaska.gov) for the latest information on available data. Please contact us using the e-mail address provided above when possible.
The Alaska Division of Geological & Geophysical Surveys is the authoritative source and distributor of these data.
The State of Alaska makes no expressed or implied warranties (including warranties for merchantability and fitness) with respect to the character, functions, or capabilities of the electronic data or products or their appropriateness for any user's purposes. In no event will the State of Alaska be liable for any incidental, indirect, special, consequential, or other damages suffered by the user or any other person or entity whether from the use of the electronic services or products or any failure thereof or otherwise. In no event will the State of Alaska's liability to the Requestor or anyone else exceed the fee paid for the electronic service or product.
DGGS publications are available as free online downloads or you may purchase paper hard-copies or digital files on CD/DVD or other digital storage media by mail, phone, fax, or email from the DGGS Fairbanks office. To purchase this or other printed reports and maps, contact DGGS by phone (907-451-5020), e-mail (dggspubs@alaska.gov), or fax (907-451-5050). Payment accepted: Cash, check, money order, VISA, or MasterCard. Turnaround time is 1-2 weeks unless special arrangements are made and an express fee is paid. Shipping charge will be the actual cost of postage and will be added to the total amount due. Contact us for the exact shipping amount.
Contact DGGS for current pricing
GeoTiff, ESRI shapefile, Geosoft binary grid (GRD), Microsoft Office documents, PDF (with or without georeferencing), ER Mapper ERS, ASCII text files (including CSV), Geosoft ASCII grid (GXF), Geosoft database, AutoCAD DXF, Geosoft plot file (PLT), Printer files (HPP, PRN, or other), digital images (multiple formats), georeferenced photos (multiple formats), digital video (multiple formats), Geosoft ASCII XYZ, Geosoft ASCII files (PLY, i0, EXP), and KMZ.
20240625
Airborne magnetic and radiometric geophysical survey data compilation
https://doi.org/10.14509/31094
Free download
U.S. Geological Survey
USGS ScienceBase Team
Mailing and Physical
Denver Federal Center, Building 810, Mail Stop 302
Denver
Colorado
80225
USA
1-888-275-8747
sciencebase@usgs.gov
The U.S. Geological Survey ScienceBase (a USGS Trusted Digital Repository) is an additional distributor these data.
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, no warranty expressed or implied is made regarding the display or utility of the data for other purposes or on all computer systems, nor shall the act of distribution constitute any such warranty. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
DGGS geophysics datasets are typically compilations of multiple digital data file formats. These formats may include: GeoTiff, ESRI shapefile, Geosoft binary grid (GRD), Microsoft Office documents, PDF, ER Mapper ERS, ASCII text files (including CSV), Geosoft ASCII grid (GXF), Geosoft database, AutoCAD DXF, Geosoft plot file (PLT), Printer files (HPP, PRN, or other), digital images (multiple formats), digital video (multiple formats), Geosoft ASCII XYZ, Geosoft ASCII files (PLY, i0, EXP), and KMZ
https://www.sciencebase.gov/catalog/item/66ec71b2d34e0606a9dc024e
None
20260304
Alaska Division of Geological & Geophysical Surveys
Simone Montayne
Metadata Manager
Mailing and Physical
3354 College Road
Fairbanks
AK
99709-3707
USA
(907)451-5020
(907)451-5050
dggspubs@alaska.gov
8 am to 4:30 pm, Monday through Friday, except State holidays
FGDC Content Standard for Digital Geospatial Metadata
FGDC-STD-001-1998