Pollastro, R.M
Persits, Feliks
Steinshouer, Douglas W.
199911
Major faults in Iran (flt2cg)
1.0
Downloadable GIS Data
Reston,VA
U.S. Geological Survey, Central Energy Resources Team
R.M. Pollastro (comp.)
Feliks Persits (comp.)
Douglas Steinshouer (comp.)
1999
Map showing Geology, Oil and Gas Fields, and Geological Provinces of Iran
version 1.0
Digital Maps
U.S. Geological Survey Open-File Report
OFR-97-470-G
Denver, Colorado
U.S. Geological Survey, Central Energy Resources Team
https://geology.cr.usgs.gov/energy/WorldEnergy/OF97-470G/index.html
U.S. Geological Survey
1998
World energy data on CD-ROM
1.0
map
USGS Open-File Report
97-470
Open File Report 97-470G is one of a series of region to continent-
scale geologic maps of the world being published on
CD-ROM by the U.S. Geological Survey's World Energy Project.
https://energy.cr.usgs.gov/oilgas/wep/
https://doi.org/10.5066/P9TMSOQ0
The geology data set for this map includes arcs, polygons, and
labels that outline and describe the general geologic age and
type of bedrock of Iran. The geologic provinces data set includes
arcs, polygons, and labels of geologic and petroleum provinces interpreted
and designated by R.M. Pollastro from a number of literature and map
resources to assist in the assessment of oil and gas resources
for the USGS World Energy Project. The oil and gas field
centerpoints data set is a point coverage that marks the
approximate centerpoints of oil and gas fields in Iran. Political
boundaries are provided to show the general location of country and/or other
reference 'political' boundaries.
This digital geologic layer with selected structural features is
created specifically for the oil and gas assessment of Iran.
The data provide government, geological community, consultants, and
the general public with the important geological base that is used
to define geologic provinces and oil and gas field assignments for
USGS Oil and Gas Assessment of the World.
Map showing Geology, Oil and Gas fields and Geologic Provinces
of Iran is a GIS data set designed originally in ESRI's ARC/INFO
ver. 7.0.4 and 7.1.2 software.
199909
publication date
None planned
43.616
65.484
40.128
24.728
None
Geology
Geologic map
Geologic age
Fault
Thrust fault
Gateway to the Earth Thesaurus
Oil shale resources
Oil sand resources
Natural gas resources
Economic geology
ArcIMS Metadata Server Theme Codes Thesaurus
geoscientificInformation
environment
USGS Energy Program Themes Thesaurus
Earth Science
Natural Resources
U.S. Geological Survey
USGS
Geology
Oil
Natural Gas
Petroleum
Resource Assessment
EnergyResourceActivities
oilgas
wep
worldgeologicmaps
iran
None
Iran
Islamic Republic of Iran
IR
Middle East
USGS Energy Program Petroleum Assessment Units
Middle Caspian Basin, Province 1109
South Caspian Basin, Province 1112
Kura Basin, Province 1113
Karabogaz-Karakum High, Province 1153
Amu-Darya Basin, Province 1154
Kopet-Dag Foldbelt, Province 1155
Oman Mountains, Province 2017
Gulf of Oman Basin, Province 2018
Rub Al Khali Basin, Province 2019
Interior Homocline-Central Arch, Province 2020
Greater Ghawar Uplift, Province 2021
Qatar Arch, Province 2022
Widyan Basin-Interior Platform, Province 2023
Mesopotamian Foredeep Basin, Province 2024
Zagros Fold Belt, Province 2030
Zagros Thrust Zone, Province 2031
Araks, Province 2080
Lesser Caucasus, Province 2081
Central Iranian Basins, Province 2091
Central Iranian Microcontinents, Province 2092
Lut Block and Depression, Province 2093
Alborz Fold Belt, Province 2094
Southeast Afghanistan, Province 8001
Makran, Province 8021
Baluchistan, Province 8022
Central Afghanistan, Province 8023
USGS Metadata Identifier
USGS:60a82961d34ea221ce4e607a
None
The oil and gas field centerpoints data set is part of
a proprietary database, and field names or any other data
associated with the field centerpoints cannot be
attributed or displayed. Furthermore, portions of this
database covering coastline and country boundaries contain
intellectual property of Environmental Systems Research
Institute, Inc. (ESRI), and are used with permission. End
users are permitted to use these data sets for their own
internal use, including derivative work, but are prohibited
from using and redistributing these data individually or in
a derivative work to third parties. Please refer to the
"ATTACHMENT B" file on this CD-ROM for further information on
ESRI's license agreement.
U.S. Geological Survey - CERSC Data Management Services Project
mailing and physical
Denver Federal Center, Building 25, Mail Stop 939
Denver
CO
80225
USA
1-888-275-8747
datamgt@usgs.gov
https://www.sciencebase.gov/catalog/file/get/60a82961d34ea221ce4e607a?f=__disk__5c%2F14%2F4e%2F5c144e61e6d26f37e937f5054d12badcde16f813
JPEG
Digital Geologic Map Compilation - Feliks Persits, Douglas Steinshouer
Geological Attribution - Feliks Persits, Douglas Steinshouer, Richard Pollastro
Fault map compilation - Richard Pollastro, Douglas Steinshouer
Province Boundaries - Richard Pollastro
Province Boundary Digital Compilation - Lee Osmonson
Oil and Gas Database - Tim Klett
Implementation of metadata- Feliks Persits, Douglas Steinshouer, B.S. Larson
Arcview project - Feliks Persits, Douglas Steinshouer
CD-ROM implementation - Feliks Persits, Douglas Steinshouer, B.S. Larson
Server and Operating System: Sun Sparc Server 1000 with Solaris 2.5.1
GIS software: Workstation ARC/INFO ver. 7.1.2
Set of subdirectories of 145 MB total size
Overall accuracy is based on accuracy of general geology coverage.
Since all the attributes are of character type, only
correctness of polygon labeling can be provided (see below).
1. Attribute item "GLG" is abstracted from fill colors and
patterns of source map denoting geologic age of surficial outcrops.
Rock units whose age is divided within a geologic period on the map
are left undivided. For instance, units labeled on the original map
"Q" or "Q1" are attributed as "Q". Units labeled as "PgN" are attributed as "T".
Units labeled as "N1" and "N2" are attributed as "N" (Neogene).
Units labeled as "Pg1", "Pg2", "Pg3" are attributed as "Pg" (Paleogene).
Units spanning Neogene and Paleogene are attributed as "T".
All Precambrian units are left undivided.
Units colored as acid igneous rocks, where age and type are not clear,
are attributed as "acid". The same is done for "basic" and "inter".
When age for igneous units is unclear, attributes are assigned "ai",
"bi and "ii" for corresponding acid, basic and intermediate intrusive
igneous rocks. A similar scheme is used for volcanic rocks. Areas
colored as surface water bodies are attributed as "H2O". Sea and ocean
are attributed as "Sea". Unmapped areas are labeled as "U". Because of
the poor quality of map printing, there are many uncertainties in
ascertaining the classification of polygons. Where there are
disagreements on the original map between the label and the fill
color, or where printing errors occur, the preference is given to
the label in attributing the unit. In some cases, a judgement is
made according to the inferred geologic trend. Definitions for the
values are found below in the entity and attribute information section.
2. Standard verification of attribute reliability is performed with the Arc/Info
command LABELERRORS to find polygons without assigned character value or with
more than one value.
A comparison between color plot and original paper map is
carried out by on-screen visual examination. The coverages are superimposed
on a registered and rectified gray-scale scanned image of the original
map and inspected. All errors detected in attributes are corrected.
As indicated above, some attibutes may be in error because
I. Features on geology coverage (ir_geo) are a result of
combinations of fillcolor, fillpattern and patterncolor
on original map and are subject to interpretation error.
II. Poor printing quality of the original map results in mismatches
between polygon boundaries and color.
A best guess estimate approach is used in a number of cases to ascertain the
intended attribute on the original map.
Good
This is a deductive estimate based on based on a polygon overlay
of a coverage plot and the orignal materials. Checks by both the
compiler and an independent source identified labeling and classification
errors which are corrected. Any remaining errors are most likey a
result of misinterpretation of source data. Commonly, this would be
for small polygons with ambiguous color or patterns.
The Data set is a collection of ARC/INFO coverages that are
topologically consistent. The fuzzy tolerance has been consistent
through each processing step (500).
Based on this fuzzy tolerance value all undershoots and overshoots
were detected and deleted.
Execution of Arc/Info Clean command indicates the coverage is topologically
clean. Duplicate lines, overshoots and undershoots if any are corrected.
All polygons are closed and labeled. In some rare cases very small polygons
could be eliminated. Polygons at the edge of the map are closed with a
map estent polygon.
The following generalizations of original geological map are performed:
1. Several geological age subdivisions on original 1:2,500,000
geological map are combined into single units.
For example, all Jurrasic combined into one unit.
2. All the Precambrian subdivisions are combined into one unit.
The version of Geologic Province Boundaries is correct as of April, 1999.
The geologic attribute data are assigned using standardized geologic
symbols for the World Energy project. The geology is
simplified from its original version. Since the emphasis of this study is
an evaluation of oil and gas resources, Precambrian units and other
non-petroleum bearing units are generalized more than younger units.
1. Original geological map is of 250 m. maximum accuracy
(0.1 mm on paper map of 1:2,500,000 scale)
2. Scanned images are of 200 dot/inch resolution (0.1 mm on paper).
Therefore fuzzy tolerance for CLEAN command in ARC/INFO is set to 500 meters
(two pixels).
3. Several steps are taken to vectorize scanned images.
The projection information is given on the original map as
"...adjusted from Polyconic Projection of the International 1:1,000,000
Map of the World." Because such projection is not supported by ESRI's ARC/INFO
software, it is necessary to georeference the map to a known projection.
This is done as follows
3.1. A latitude/longitude grid with cell size 2 * 2 degree
is projected to Lambert Conformal Conic projection and then
used to create an ARC/INFO point coverage. That point coverage
is used to create "to - from" links by means of the
ARC/INFO CONTROLPOINTS command.
3.2 A gray-scale scanned image converted to an Arc/Info grid of the original
paper map is transformed to Lambert Conformal Conic projection by means of
the ARC/INFO GRIDWARP command (polynomial of the second order),
using the "to - from" links created with the CONTROLPOINTS command.
3.3 The source of the geologic contacts is a mylar sheet with the linework
traced from the source map on a light table. This mylar sheet is scanned
as a binary image and then vectorized with the ARC/INFO GRIDLINE utility.
The resulting coverage is projected to the Lambert Conformal Conic
projection, and then adjusted with the Arcedit adjust command to match
the rectified gray-scale image of the source map. The vectorized
coverage is edited and attributed in arcedit using the gray-scale image
of the source map as a background guide.
3.4 Polygon boundaries and geologic attributing of the ARC/INFO
coverage from step 3.3 are verified and corrected by comparison to the
grey-scale image background.
3.5 A series of piecewise "rubbersheet" transformations are
applied to the final ARC/INFO coverage to ensure a closer match
to the ArcWorld 1:3M cartographic layers (CRTY3m and RIV3M), which are
used as the base map for the digital geologic maps of the world in this
series.
Overall position error was estimated by randomly selected set of locations on the
ESRI coverages and the same locations on the final geology coverage (ir_geo).
RMS error is 1.6 km (0.6 mm of the original paper map) with a maximum error of
about 6 km (2.4 mm on the original paper map).
1600 meters
Overall position error was estimated by randomly selected set of locations on the
ESRI coverages and the same locations on the final geology coverage (ir_geo).
RMS error is 1.6 km (0.6 mm of the original paper map) with a maximum error of
about 6 km (2.4 mm on the original paper map).
Geological Survey of Iran
1985
Geological Map of Iran
Map
Tehran, Iran
Islamic Republic of Iran
Ministry of Mines and Metals
Geological Survey of Iran
Compiled by A. Haghipour and A. Aghanabati
2500000
Paper
1985
publication date
GSI
Geologic contacts, major faults, geologic age and lithology, where applicable.
Environmental Systems Research Institute, Inc. (ESRI)(comp.)
1992
Arcworld Digital Map of the world
Digital files - ARC/INFO coverages
Redlands, CA, USA
Environmental Systems Research Institute, Inc. (ESRI)
3000000
CD-ROM
1992
Date of publication
ESRI
Used as a basemap to adjust spatial location of objects digitized from GSI maps.
Also, selected cities were taken for coverage city_ir.
Petroconsultants International Data Corp.
1996
Petroconsultants Exploration and Production Database
Digital data set - Oracle database
CD-ROM
1996
Publication date
PCI
Centerpoints of oil and gas fields.
T.R. Klett, T.S. Ahlbrandt, J.W. Schmoker, and G.L. Dolton
1997
Ranking of the World's Oil and Gas Provinces by Known Petroleum Values
World Energy Data on CD-ROM
Open-File Report 97-463
Denver, CO, USA
U.S. Geological Survey
CD-ROM
1997
19990400
USGS
Boundaries and attributes of geologic provinces.
Geologic contacts are inked on mylar sheet placed on top of source map on
light table. Mylar sheet of traced geologic contacts is scanned as TIFF
format binary image. Binary image converted to ARC/INFO grid. Linework is
vectorized. Polygons are attributed with geologic age and type.
Scan original paper map on large format Anatech Eagle scanner, producing
one gray-scale image in TIFF format at 200 dot/inch resolution.
Scanned image is converted to ARC/INFO grid by means of the ARC/INFO imagegrid
command. The grid is then transformed to Lambert Conformal Conic projection
with the ARC/INFO GRIDWARP command (polynomial of the second order).
The "from-to" links for transformation are created with the ARC/INFO
CONTROLPOINTS command, where a latitude/longitude graticule (point
coverage) with cell size 2 X 2 degrees is used as a reference.
Geologic contact coverage is cleaned and georeferenced.
Verification and correction of geologic age polygons, using grey-scale
image of Geological Survey of Iran source map as a backdrop guide.
Label attributes are populated in Arcedit.
(This step is performed simultaneously with verification of
position of arcs and labels.)
A series of piecewise "rubbersheet" transformations
are applied to the ARC/INFO geologic coverage created after
the verification of linework and attribute values.
The ARC/INFO coverages that are used for transformation
are ESRI's ArcWorld 1:3M GIS cartographic layers (RIV3M, CTRY3M).
To perform rubber transformation the combination of ARC/INFO
ARCEDIT ADD (links) and ADJUST commands are applied.
There are a number of such transformations for each selected
area of original coverage.
Major faults are digitized and attributed in Arcedit,
using the gray-scale image of the source map and the
geologic age polygon coverage as a background guide.
Layout of "Map Showing Geology, Oil and Gas Fields, Geologic
Provinces, and Major Faults of Iran" is produced in Arcplot,
using the ARC/INFO coverages described in this metadata file.
Postscript and HPGL files are produced.
Layout of the "Province" map without geologic age is produced in Arcplot.
Postscript and HPGL files are produced.
Adobe Acrobat Portable Document file (PDF), iranmap.pdf is produced
in Adobe Acrobat Exchange using the postscript files of
map showing geology, map without geology and text files.
The PDF file is used to generate tif, gif and jpg files with
Adober Phtoshop version 5.5.
Arcview shapefiles are produced in Arcview v3.0 from the
coverages described in this metadata file. An Arcview
project and an ArcExplorer project are created.
ARC/INFO exchange format files (.e00), "ungenerate" format text files (.gen),
comma delimited attribute files (.csv) and SDTS files are generated of the
ARC/INFO coverages described in this metadata file
1999
Feliks Persits
GIS Analyst, Contract
mailing and physical address
U.S. Geological Survey, MS 939
Box 25046
Denver Federal Center
Denver
Colorado
80225-0046
U.S.A.
303-236-3612
303-236-8822
fpersits@usgs.gov
8 am to 4 pm U.S. Rocky Mountain Time Zone
Vector
GT-polygon composed of chains
17449
Decimal degrees
D_WGS_1984
WGS_1984
6378137.000000
298.257224
Major faults
Geologic faults of significance to be mapped at a scale
of 1:25000000. Arc attribute table
U.S. Geological Survey
fnode#
From-node identifier of linear feature
Software computed
1
4093
tnode#
To-node identifier of linear feature
Software computed
2
4095
lpoly#
Internal number of polygon to left of arc
Software computed
0
0
rpoly#
Internal number of polygon to right of arc
Software computed
0
0
length
Length of line
Software computed
509.184
275431.594
Meters
type
Textual code indicating type of fault
U.S. Geological Survey
th
thrust fault
U.S. Geological Survey
o
other type of fault, e.g., normal, reverse
U.S. Geological Survey
line
Textual code designating whether the fault is evident or inferred
U.S. Geological Survey
e
evident fault
U.S. Geological Survey
i
inferred fault
U.S. Geological Survey
symbol
Numeric code indicating the linesymbol used from custom
ARC/INFO lineset ir_flt.lin drawn in a map layout.
U.S. Geological Survey
104
evident thrust fault
U.S. Geological Survey
105
inferred thrust fault
U.S. Geological Survey
108
evident other fault
U.S. Geological Survey
109
inferred other fault
U.S. Geological Survey
U.S. Geological Survey - ScienceBase
mailing and physical
Denver Federal Center, Building 810, Mail Stop 302
Denver
CO
80225
USA
1-888-275-8747
sciencebase@usgs.gov
Downloadable 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 (USGS), no warranty expressed or implied is made regarding the display or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty.
Shapefile
https://doi.org/10.5066/P9TMSOQ0
20210521
20040625
U.S. Geological Survey - CERSC Data Management Services Project
mailing and physical
Denver Federal Center, Building 25, Mail Stop 939
Denver
CO
80225
USA
1-888-275-8747
datamgt@usgs.gov
FGDC Content Standards for Digital Geospatial Metadata
FGDC-STD-001-1998