USGS Home
Contact USGS
Search USGS

Additional USGS Geoscience data can be found by geographic location or by publication series.

Maps showing geology, oil and gas fields and geologic provinces of the Arabian Peninsula

Frequently-anticipated questions:

• What does this data set describe?
  1. How should this data set be cited?
  2. What geographic area does the data set cover?
  3. What does it look like?
  4. Does the data set describe conditions during a particular time period?
  5. What is the general form of this data set?
  6. How does the data set represent geographic features?
  7. How does the data set describe geographic features?
  8. What are the components of this data set?
• Who produced the data set?
  1. Who are the originators of the data set?
  2. Who also contributed to the data set?
  3. To whom should users address questions about the data?
• Why was the data set created?
• How was the data set created?
  1. From what previous works were the data drawn?
  2. How were the data generated, processed, and modified?
  3. What similar or related data should the user be aware of?
• How reliable are the data; what problems remain in the data set?
  1. How well have the observations been checked?
  2. How accurate are the geographic locations?
  3. How accurate are the heights or depths?
  4. Where are the gaps in the data? What is missing?
  5. How consistent are the relationships among the data, including topology?
• How can someone get a copy of the data set?
  1. Are there legal restrictions on access or use of the data?
  2. Who distributes the data?
  3. What's the catalog number I need to order this data set?
  4. What legal disclaimers am I supposed to read?
  5. How can I download or order the data?
• Who wrote the metadata?

What does this data set describe?

1. How should this data set be cited?

   Pollastro, Richard M. , Karshbaum, Amy S. , and Viger, Roland J. , 1997, Maps showing geology, oil and gas fields and geologic provinces of the Arabian Peninsula: U.S. Geological Survey Open-File Report 97-470B, U.S. Geological Survey, Denver, Colorado.

   This is part of the following larger work.

   U.S. Geological Survey, 1998, World energy data on CD-ROM: U.S. Geological Survey Open-File Report 97-470.

   Online Links:

   • <http://energy.cr.usgs.gov/energy/WorldEnergy/WEnergy.html>

2. What geographic area does the data set cover?

   West_Bounding_Coordinate: 32.3

   East_Bounding_Coordinate: 60.5

   North_Bounding_Coordinate: 39.3

   South_Bounding_Coordinate: 11.3

3. What does it look like?

4. Does the data set describe conditions during a particular time period?

   Calendar_Date: Dec-1997

   Currentness_Reference: publication date

5. What is the general form of this data set?

   Geospatial_Data_Presentation_Form: map

6. How does the data set represent geographic features?
   1. How are geographic features stored in the data set?

      This is a Point data set. It contains the following vector data types (SDTS terminology):

      • Point

   2. What coordinate system is used to represent geographic features?

      The map projection used is Lambert Conformal Conic.

      Projection parameters:

      Standard_Parallel: 17.0

      Longitude_of_Central_Meridian: 47.0

      Latitude_of_Projection_Origin: 22.0

      False_Easting: 0.0

      False_Northing: 0.0

      Planar coordinates are encoded using coordinate pair
      Abscissae (x-coordinates) are specified to the nearest 1000
      Ordinates (y-coordinates) are specified to the nearest 1000
      Planar coordinates are specified in meters

      The horizontal datum used is Unknown.
      The ellipsoid used is Clarke 1866.
      The semi-major axis of the ellipsoid used is 6370997.
      The flattening of the ellipsoid used is 1/294.98.
      

7. How does the data set describe geographic features?

   Surficial geology

   The generalized geologic age of the rock formations as they occur on the surface. Some geologic attribute data also indicate rock type, that is, sedimentary, igneous, volcanic, metamorphic, or facies, such as, eolian, fluvial, or salt. (Source: U.S. Geological Survey)

   GLG

   The abbreviated geologic age of the surficial rock formation. (Source: U.S. Geological Survey)

   Value	Definition
   Q	Quaternary
   Qf	Quaternary(fluvial)
   Qe	Quaternary(eolian)
   Qsk	Quaternary(sahbka)
   QT	Quaternary-Tertiary
   T	Tertiary
   TK	Tertiary-Cretaceous
   K	Cretaceous
   KJ	Cretaceous-Jurassic
   J	Jurassic
   JTr	Jurassic-Triassic
   Tr	Triassic
   TrP	Triassic-Permian
   P	Permian
   C	Carboniferous
   D	Devonian
   DSO	Devonian-Silurian-Ordovician
   OCm	Ordovician-Cambrian
   Cm	Cambrian
   Mz	Mesozoic
   MzPz	Mesozoic-Paleozoic
   Pz	Paleozoic
   PzpC	Paleozoic-preCambrian
   pC	preCambrian undifferentiated
   Kv	Cretaceous volcanics
   TKv	Tertiary-Cretaceous volcanics
   TKi	Tertiary-Cretaceous intrusives
   Qv	Quaternary volcanics
   QTv	Quaternary-Tertiary volcanics
   Czi	Cenozoic intrusives
   MzCzi	Mesozoic-Cenozoic intrusives
   MzCzv	Mesozoic-Cenozoic volcanics
   Pzi	Paleozoic intrusives
   U	Land areas not included in this study
   H2O	Ocean sea or open water

   Entity_and_Attribute_Overview:

   The geology data set contains AREA, PERIMETER, -ID, and GLG attributes. AREA, PERIMETER, and -ID are calculated internally by ARC/INFO. Each polygon in the data set is assigned a GLG attribute which represents that surface formation's geologic age.

   Entity_and_Attribute_Detail_Citation:

   A complete description of the GLG attribute can be obtained from the original Geologic Map of the Arabian Peninsula - I-270A.

   Geologic province

   The geologic provinces are boundaries subjectively interpreted using the general geology as a reference and consist of areas with similar geologic, geographic, structural, or petroleum characteristics. (Source: U.S. Geological Survey)

   CODE

   A unique number assigned to each province. (Source: U.S. Geological Survey)

   Value	Definition
   2001	Yemen Volcanic Basin (North)
   2002	Yemen Volcanic Basin (South)
   2003	Hays Structural Belt
   2004	Ma'Rib-Al Jawf Basin
   2005	Mukalla Rift Basin,
   2006	Shabwah Basin
   2007	Sharmah Rift Basin
   2008	Masirah Trough
   2009	Masila-Jeza Basin
   2010	Ghudun-Khasfeh Flank Province
   2011	South Oman Salt Basin
   2012	East Flank Oman Sub-basin
   2013	Huqf-Haushi Uplift
   2014	Ghaba Salt Basin
   2015	Central Oman Platform
   2016	Fahud Salt Basin
   2017	Oman Mountains
   2018	Gulf of Oman Basin
   2019	Rub Al Khali Basin
   2020	Interior Homocline-Central Arch
   2021	Greater Ghawar Uplift
   2022	Qatar Arch
   2023	Widyan Basin-Interior Platform
   2024	Mesopotamian Fordeep Basin
   2025	Hail-Ga'Ara Arch
   2026	Jafr-Tabuk Basin
   2027	North Harrah Volcanics
   2028	Rutbah Uplift
   2029	Wadi-Surhan Basin
   2030	Zagros Fold Belt
   2031	Zagros Thrust Zone
   2032	Levantine Basin
   2033	Sinai Basin
   2034	South Harrah Volcanics
   2071	Red Sea Basin
   2074	Khleisha Uplift
   2075	Euphrates/Mardin
   2076	Haleb
   2077	Palmyra Zone
   2078	Beirut
   2101	Arabian Shield
   2102	Mirbat Precambrian Basement

   Entity_and_Attribute_Overview:

   The geologic provinces data set contains AREA, PERIMETER, -ID, CODE, PNUM, and NAME. AREA, PERIMETER, and -ID are calculated internally by ARC/INFO. Each polygon in the data set is assigned a "CODE" which corresponds to the "PNUM" attribute -- a unique identifier for each of the geologic provinces.

   Entity_and_Attribute_Detail_Citation:

   A more in-depth discussion of the geologic province CODEs and their relative ranking in terms of total known petroleum volume is given in the USGS Open File Report 97-463.

   Geologic province

   The geologic provinces are boundaries subjectively interpreted using the general geology as a reference and consist of areas with similar geologic, geographic, structural, and/or petroleum characteristics. (Source: U.S. Geological Survey)

   PNUM

   A unique number assigned to each province. (Source: U.S. Geological Survey)

   Value	Definition
   2001	Yemen Volcanic Basin (North)
   2002	Yemen Volcanic Basin (South)
   2003	Hays Structural Belt
   2004	Ma'Rib-Al Jawf Basin
   2005	Mukalla Rift Basin,
   2006	Shabwah Basin
   2007	Sharmah Rift Basin
   2008	Masirah Trough
   2009	Masila-Jeza Basin
   2010	Ghudun-Khasfeh Flank Province
   2011	South Oman Salt Basin
   2012	East Flank Oman Sub-basin
   2013	Huqf-Haushi Uplift
   2014	Ghaba Salt Basin
   2015	Central Oman Platform
   2016	Fahud Salt Basin
   2017	Oman Mountains
   2018	Gulf of Oman Basin
   2019	Rub Al Khali Basin
   2020	Interior Homocline-Central Arch
   2021	Greater Ghawar Uplift
   2022	Qatar Arch
   2023	Widyan Basin-Interior Platform
   2024	Mesopotamian Fordeep Basin
   2025	Hail-Ga'Ara Arch
   2026	Jafr-Tabuk Basin
   2027	North Harrah Volcanics
   2028	Rutbah Uplift
   2029	Wadi-Surhan Basin
   2030	Zagros Fold Belt
   2031	Zagros Thrust Zone
   2032	Levantine Basin
   2033	Sinai Basin
   2034	South Harrah Volcanics
   2071	Red Sea Basin
   2074	Khleisha Uplift
   2075	Euphrates/Mardin
   2076	Haleb
   2077	Palmyra Zone
   2078	Beirut
   2101	Arabian Shield
   2102	Mirbat Precambrian Basement

   Entity_and_Attribute_Overview:

   The geologic provinces data set contains AREA, PERIMETER, -ID, CODE, PNUM, and NAME. AREA, PERIMETER, and -ID are calculated internally by ARC/INFO. Each polygon in the data set is assigned a "CODE" which corresponds to the "PNUM" attribute -- a unique identifier for each of the geologic provinces.

   Entity_and_Attribute_Detail_Citation:

   A more in-depth discussion of the geologic province CODEs and their relative ranking in terms of total known petroleum volume is given in the USGS Open File Report 97-463.

   Geologic province

   The geologic provinces are boundaries subjectively interpreted using the general geology as a reference and consist of areas with similar geologic, geographic, structural, and/or petroleum characteristics. (Source: U.S. Geological Survey)

   NAME

   The geologic province name assigned to an area with similar geologic, geographic, structural, and/or petroleum characteristics. (Source: U.S. Geological Survey)

   Value

   Definition

   Yemen Volcanic Basin (North), Yemen Volcanic Basin (South), Hays Structural Belt, Ma'Rib-Al Jawf Basin, Mukalla Rift Basin, Shabwah Basin, Sharmah Rift Basin, Masirah Trough, Masila-Jeza Basin, Ghudun-Khasfeh Flank Province, South Oman Salt Basin, East Flank Oman Sub-basin, Huqf-Haushi Uplift, Ghaba Salt Basin, Central Oman Platform, Fahud Salt Basin, Oman Mountains, Gulf of Oman Basin, Rub Al Khali Basin, Interior Homocline-Central Arch, Greater Ghawar Uplift, Qatar Arch, Widyan Basin-Interior Platform, Mesopotamian Fordeep Basin, Hail-Ga'Ara Arch, Jafr-Tabuk Basin, North Harrah Volcanics, Rutbah Uplift, Wadi-Surhan Basin, Zagros Fold Belt, Zagros Thrust Zone, Levantine Basin, Sinai Basin, South Harrah Volcanics, Red Sea Basin, Khleisha Uplift, Euphrates/Mardin, Haleb, Palmyra Zone, Beirut, Arabian Shield, and Mirbat Precambrian Basement.

   Geologic province NAMEs correspond to areal similarities in geologic, geographic, structural, and/or petroleum characteristics.

   Entity_and_Attribute_Overview:

   The geologic provinces data set contains AREA, PERIMETER, -ID, CODE, PNUM, and NAME. AREA, PERIMETER, and -ID are calculated internally by ARC/INFO. The "NAME" of the geologic province is indicative of the geologic, geographic, structural, and/or petroleum characteristics for which it was named.

   Entity_and_Attribute_Detail_Citation:

   A more in-depth discussion of the geologic province NAMEs and their relative ranking in terms of total known petroleum volume is given in the USGS Open File Report 97-463.

   Oil and gas field centerpoint

   Point that marks the approximate center of oil and gas fields for the Arabian Peninsula and adjacent areas. (Source: U.S. Geological Survey)

   LONGITUDE

   The longitudinal location of the oil and gas field centerpoint. (Source: Petroconsultants International Data Corp.)

   Range of values
   Minimum:	32.30000
   Maximum:	60.50000

   Oil and gas field centerpoint

   Point that marks the approximate center of oil and gas fields for the Arabian Peninsula and adjacent areas. (Source: U.S. Geological Survey)

   LATITUDE

   The point of latitude of the oil and gas field centerpoint. (Source: Petroconsultants International Data Corp.)

   Range of values
   Minimum:	11.30000
   Maximum:	39.30000

   Oil and gas field centerpoint

   Point that marks the approximate center of oil and gas fields for the Arabian Peninsula and adjacent areas. (Source: U.S. Geological Survey)

   FIE_ID

   The FIE_ID is provided for the purpose of giving each oil and gas field centerpoint a unique identifier. (Source: Petroconsultants International Data Corp.)

   Range of values
   Minimum:	100000004409
   Maximum:	100000019870

   Country

   Arcs that define the boundary for a country and/or residence of a political entity. (Source: ESRI)

   CNTRY

   The name of the country defined by the polygons. (Source: ESRI)

   Value	Definition
   Iraq, Occupied by Israel, Kuwait, Iraq-Saudi Arabia Neutral Zone, United Arab Emirates, Oman, Yemen, Saudi Arabia, Bahrain, Qatar, Lebanon, West Bank, Syria, Israel, Gaza Strip, Sea, and Unmapped Island.	The name of the country defined by a polygon. When CNTRY is equal to "Unmapped Island" the island name is attributed to indicate these islands are not included in this study.

8. What are the components of this data set?

   ARC_COVR (directory)

   Contains original UNIX ARC/INFO(ver. 7.0.4) coverages in Lambert Conformal Conical projection.

   geo_2a (coverage)

   Surficial geology of the Arabian Peninsula. Item 'GLG' is in coverage's feature attribute table.

   prov_2a (coverage)

   Geological province boundaries for the Arabian Peninsula outlines areas of common geologic structures or petroleum systems. Items 'CODE' and 'NAME' are included in the coverage's feature attribute table.

   fld_2a (coverage)

   Oil and Gas Field Centerpoints for the Arabian Peninsula. This point coverage is a general representation of the number, distribution, and location of oil and gas fields. This data set is part of a proprietary database and field names or any other data can not be attributed or displayed, nor can the actual coverage be supplied on this CD-ROM except as part of the map composition. Not included.

   reg_2a (coverage)

   USGS region boundary between Region 2 (Middle East-North Africa), Region 7 on the east (Sub-Saharan Africa), and Region 1 on the northwest (Former Soviet Union). These regions are three of the eight regional subdivisions in the USGS Oil and Gas assessment of the World.

   pol_2a (coverage)

   Country boundaries provided for reference only and are used with permission from ESRI. Read further for permitted uses.

   shore_2a (coverage)

   Shorelines and ocean polygons for the limited area surrounding the Arabian Peninsula.

   refmp_2a (coverage)

   World coverage in Robinson Projection for use with the supplementary refmap.aml which draws a reference map in the upper-right corner.

   reg2a_rb (coverage)

   USGS Region 2 boundary coverage in Robinson Proj. for use with the supplementary refmap.aml, to display a reference to what portion of Region 2 is covered in these data sets.

   EXPT_UX (directory)

   Contains datasets in ARC/INFO Export or Ungenerate formats:
   ARC/INFO Export format data sets correspond with the names of the Arc/Info coverages from section 1 and are suffixed with the interchange extension '.e00'. Oil and gas field centerpoints are not supplied in EXPORT format, nor as a coverage, as these datapoints are part of a proprietary database. The export files created with the 'NONE' option and are uncompressed ASCII files.
   ARC/INFO UNGENERATE files (ASCII comma delimited) for three of the major coverages; geol_2a, pol_2a, and prov_2a. These files have the '.gen' extension.
   Attribute files with the '.csv' extension contain ASCII, comma delimited text for geol_2a, pol_2a, and prov_2a.

   PLOT (directory)

   Digital graphic representations of the data

   arabpen.map (file)

   A complete Map composition for use in ARC/INFO's ARCPLOT module. This is a metafile containing all data sets and cartographic aesthetics and the source of .hp2, .eps, and .ai files.

   arabpen.hp2 (file)

   HPGL2 plot file containing all data sets and cartographic aesthetics. For use with HP Design Jet plotter of a width no less than 36 inches.

   arabpen.eps (file)

   Encapsulated Postscript file containing all data sets and cartographic aesthetics.

   arabpen.ai (file)

   An Adobe Illustrator 7 file containing all data sets and cartographic aesthetics.

   arabpen.tif (file)

   A tif file in PC format with LZW compressioncontaining all data sets and cartographic aesthetics. Page size format for quick view.

   arabpen.gif (file)

   An gif file (87a) containing all data sets and cartographic aesthetics. Page size format for quick view.

   prov.map (file)

   A Map composition containing Region 2a provinces, oil and gas field points, international boundaries, and shoreline. Geology of the Arabian Peninsula is NOT included in this composition. This is a metafile containing all data sets and cartographic aesthetics and the source of .hp2, .eps, and .ai files.

   provmap.hp2 (file)

   HPGL2 plot file which corresponds to prov_map.

   provmap.eps (file)

   Encapsulated Postscript plot file which corresponds to prov_map.

   provmap.ai (file)

   Adobe Illustrator 7 plot file which corresponds to prov_map.

   prov_map.tif (file)

   A tif file in PC format with LZW compressioncontaining all data sets and cartographic aesthetics. Page size format for quick view.

   prov_map.gif (file)

   A gif file (GIF87a) containing all data sets and cartographic aesthetics. Page size format for quick view.

   VIEWS (directory)

   This directory contains all the coverages, layouts and projects for use in ARCVIEW (ver. 3.0).
   Three shapefiles are included corresponding to three ARC/INFO coverages: geo_2a.shp, prov_2a.shp, and pol_2a.shp.
   Shapefiles are supplemented with corresponding ARCVIEW .shx files and .dbf files.
   

   arabpen.apr (file)

   An ARCVIEW project file containing a complete layout with legend and reference map.

   geol_2a.avl (file)

   An ARCVIEW legend file for the geology theme.

   prov_2a.avl (file)

   An ARCVIEW legend file for proper representation of the province linework.

   pol_2a.avl (file)

   An ARCVIEW legend file for proper representation of the political linework.

   TEXT (directory)

   Contains several text files, look-up tables, and ARC Macro-language command files in ARC/INFO INTERCHANGE format. These files are used to produce a complete Map composition at a scale of 1:4,500,000 for the Arabian Peninsula. Proper Arc/Info IMPORT syntax and naming conventions are listed after file description, in parentheses. All of the coverages from Section 1 and the following files will need to be located in the same directory for the production of a complete Map composition in ARCPLOT using PLOT.AML.

   plot.e00 (file)

   AML file produces a complete Map composition and corresponding plot file in HPGL2 format of the Arabian Peninsula at a scale of 1:4,500,000. (IMPORT auto plot.e00 plot.aml)

   neatline.e00 (file)

   AML file contains a series of NEATLINE commands for the Lat/Long grid with latitude and longitude labeled with degrees only. (IMPORT auto neatline.e00 neatline.aml)

   proj.e00 (file)

   Text file containing projection information necessary for a neatline grid and MAPPROJECTION command. (IMPORT auto proj.e00 proj.prj)

   neat.e00 (file)

   Text file containing projection information for neatline tics placement. (IMPORT auto neat.e00 neat.prj)

   mapbar.e00 (file)

   AML file written by W.R. Beeman for generation of a scalebar at a user specified scale. Here 1:4,500,000. (IMPORT auto mapbar.e00 mapbar.aml)

   refmap.e00 (file)

   AML file written by A.S. Karshbaum producing a reference map of the World with a Region 2 boundary and Arabian Peninsula in red. (IMPORT auto refmap.e00 refmap.aml)

   intro.e00 (file)

   Text file with the map's introductory text. (IMPORT auto intro.e00 intro.txt)

   ref.e00 (file)

   Text file containing a list of selected references used to produce the map. (IMPORT auto ref.e00 ref.txt)

   prj.e00 (file)

   Text file containing all projection information. Displayed at the lower-left corner of the map. (IMPORT auto prj.e00 prj.txt)

   prod.e00 (file)

   Text file containing production information. Displayed at the lower-right corner of the map. (IMPORT auto prod.e00 prod.txt)

   wep.e00 (file)

   A World Energy Project shadeset written by Chris Schenck for shading the geology via the geol2a.lut. (IMPORT auto wep.e00 wep.shd)

   fnt034 (file)

   A pattern necessary for use with wep.shd shadeset.

   geol_lut.e00 (file)

   An INFO look-up table used to POLYGONSHADE each geologic unit with the specified wep.shd shadesymbol. (IMPORT auto geol2alut.e00 geol2a.lut)

   legend.e00 (file)

   AML file containing all plotting parameters and commands for the legend/explanation of the map. (IMPORT auto legend.e00 legend.aml)

   geol.e00 (file)

   Key file containing legend shading instructions for main geologic units. (IMPORT auto geol.e00 geol.key)

   v_and_i.e00 (file)

   Key file containing legend shading instructions for volcanic and intrusive geologic units. (IMPORT auto v_and_i.e00 v_and_i.key)

   prov.key (file)

   Key file for geologic province boundaries. (IMPORT auto prov.e00 prov.key)

   region.key (file)

   Key file for USGS Region 2 boundary. (IMPORT auto region.e00 region.key)

   polit.key (file)

   Key file for country boundaries. (IMPORT auto polit.e00 polit.key)

   contact.key (file)

   Key file for geologic contact arcs. (IMPORT auto contact.e00 contact.key)

   field.key (file)

   Key file for oil and gas field centerpoints. (IMPORT auto field.e00 field.key)

Who produced the data set?

1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
   • Richard M. Pollastro
   • Amy S. Karshbaum
   • Roland J. Viger

2. Who also contributed to the data set?

   Digital Map Compilation - Richard M. Pollastro, Amy S. Karshbaum, and Roland Viger
   Geology Attribution - Richard M. Pollastro, Amy S. Karshbaum, and Roland Viger
   Geologic Province Boundaries - Region 2 - Richard M. Pollastro
   Geologic Province Boundaries Digital Compilation - Richard M. Pollastro
   Oil and Gas Database - Tim Klett
   Political Boundaries - Environmental Systems Research Institute, Inc.

3. To whom should users address questions about the data?
   Richard M. Pollastro
   U.S. Geological Survey, Central Energy Resource Team
   Geologist
   Mail Stop 939
   Box 25046
   Denver Federal Center
   Denver, Colorado 80225-0046
   USA
   

   303-236-5750 (voice)
   303-236-8822 (FAX)
   pollastro@usgs.gov
   

   Hours_of_Service: 9 a.m. - 5 p.m. U.S. Rocky Mountain Time Zone

Why was the data set created?

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.

How was the data set created?

1. From what previous works were the data drawn?

   USGS 1963 (source 1 of 3)

   U.S. Geological Survey - Arabian American Oil Company, 1963, Geologic Map of the Arabian Peninsula: U.S. Geological Survey Miscellaneous Investigations Series Map I-270A, U.S. Geological Survey, Denver, Colorado USA.

   Type_of_Source_Media: paper

   Source_Scale_Denominator: 2000000

   Source_Contribution:

   One of two paper map sheets is used as the source for creation of the correspondent ARC/INFO geology coverage.

   UNESCO 1971 (source 2 of 3)

   Commission for the Geologic Map of the World/UNESCO-AGSU, 1971, Carte geologique de l'Europe et des regions riveraines de la Meditarranee: Geologic map of the World Geologic map of Europe - Eastern sheet, UNESCO-AGSU, Hanover, Germany.

   Type_of_Source_Media: paper

   Source_Scale_Denominator: 5000000

   Source_Contribution:

   One of two paper map sheets is used as a source for creation of the corresponding ARC/INFO coverages.

   PIDC 1996 (source 3 of 3)

   Petroconsultants International Data Corp., 1996, Petroleum exploration and production database: Petroleum exploration and production database 1996, Petroconsultants International Data Corporation, Houston, Texas.

   Type_of_Source_Media: CD-ROM

   Source_Contribution:

   Selected portions of the original data set are transformed to Lambert Conformal Conic projection and used as a general reference for the number, distribution, and location of oil and gas field centerpoints for the Arabian Peninsula and adjacent areas.

2. How were the data generated, processed, and modified?

   Date: unknown (process 1 of 3)

   Mylar is placed over the source map and geology polygons and inland water bodies are traced using a 00 rapidiograph pen. Latitude and longitude tics are carefully transferred from the source map to the mylar tracing and recorded. The mylar tracing is then scanned on a large-format Anatech scanner at a resolution of 300 dpi to create a TIFF image. The scanned TIFF image is then transferred to ARC/INFO, converted to an Arc GRID file, then to an Arc Vector coverage, and transformed to Lambert Conformal Conic projection. The geological attributes are then assigned to each polygon in ARCEDIT, using a modified or abbreviated geologic character designation standardized by the USGS World Energy Project.

   Data sources used in this process:

   • USGS 1963

   Data sources produced in this process:

   • GEOL 1997

   Date: 1997 (process 2 of 3)

   Mylar is placed over the source map and geology polygons and inland water bodies are traced using a 00 rapidiograph pen. Latitude and longitude tics are carefully transferred from the source map to the mylar tracing and recorded. The mylar tracing is then scanned on a large-format Anatech scanner at a resolution of 300 dpi to create a TIFF image. The scanned TIFF image is then transferred to ARC/INFO, converted to an Arc GRID file, then to an Arc Vector coverage, and transformed to Lambert Conformal Conic projection. The geological attributes are then assigned to each polygon in ARCEDIT, using a modified or abbreviated geologic character designation standardized by the USGS World Energy Project.

   Data sources used in this process:

   • UNESCO 1971

   Data sources produced in this process:

   • GEOL 1997

   Date: 1997 (process 3 of 3)

   Proprietary data sets of latitude and longitude values for oil and gas field centerpoints are initially taken from the Petroconsultants International Data Corp., Houston, TX. They are used to create a point coverage of oil and gas field centerpoints for the Middle East Region and projected into Robinson projection by T. Klett and L. Osmonson of the USGS World Energy Project. Selected portions of both the data set and its respective coverage are then reprojected into Lambert Conformal Conic projection for use in this publication. Arc/Info is used to do map projections.

   Data sources used in this process:

   • PIDC 1996

   Data sources produced in this process:

   • FIELD 1997

3. What similar or related data should the user be aware of?

How reliable are the data; what problems remain in the data set?

1. How well have the observations been checked?

   Overall accuracy of both the geology and geologic province data sets are based on the accuracy of the general geology coverage. Original maps are traced onto mylar and scanned at a resolution of 300 dpi. The scanned images are converted to Arc GRIDs and then to Arc Vector coverages in Lambert Conformal Conic projection.

2. How accurate are the geographic locations?

   A comparison between color hard copy and original paper maps was carried out by visual comparison.

3. How accurate are the heights or depths?

4. Where are the gaps in the data? What is missing?

   Generalizations on geology are made from original USGS 1:2,000,000 scale Geologic map and UNESCO 1:5,000,000 scale Geologic map of Europe, Eastern sheet. Several geological age subdivisions from geologic source maps are combined into single units. Although all polygons from the source maps are included in the data set, geology is simplified and attributed only by overall age; no break- down is made of the age into upper, lower, early, late, etc., nor are geologic units differentiated within any particular geologic age or region as they appear on the source maps.

5. How consistent are the relationships among the observations, including topology?

   The Data set is a collection of ARC/INFO coverages that are topologically consistent. The fuzzy tolerance has been consistent through each processing step. A comparison between color hard copy and original paper map was carried out by visual comparison. Color plot in 1:2,000,000 scale was superimposed on original map in 1:2,000,000 scale and any detected errors were corrected in ARC/INFO.

How can someone get a copy of the data set?

Are there legal restrictions on access or use of the data?

Access_Constraints:

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 can not 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 ESRI data sets for their own internal use, including and 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" (attachb) file on this CD-ROM for further information on ESRI's license agreement.

Use_Constraints:

Since the oil and gas field centerpoints data set is part of a proprietary database, permission must be obtained from Petroconsultants International Data Corp. prior to further use of the data. In addition, portions of this database covering the coastline and country boundaries contain intellectual property of Environmental Systems Research Institute, Inc. (ESRI), and are used herein with permission. End users are permitted to use ESRI data sets for their own internal use, including any derivative work, but are prohibited from using and redistributing these data sets individually or in a derivative work to third parties. Please refer the "ATTACHMENT B" (attachb) file on this CD-ROM for more comprehensive information concerning ESRI's license agreement.

1. Who distributes the data set? (Distributor 1 of 1)
   USGS Earth Science Information Center(ESIC)
   Building 810
   Box 25286
   Denver Federal Center
   Denver, Colorado 80225-0286
   USA
   

   303-202-4200 (voice)
   303-202-4693 (FAX)
   infoservices@usgs.gov
   

   Hours_of_Service: 8 a.m. - 4 p.m. U.S. Rocky Mountain Time Zone

2. What's the catalog number I need to order this data set?

   USGS Open-File Report 97-470B

3. What legal disclaimers am I supposed to read?

   Although data are processed on a computer system at the U.S. Geological Survey, U.S. Department of the Interior, no warranty, expressed or implied, is made by the Geological Survey regarding the utility of the data on any other system, nor shall the act of distribution constitute any such warranty.

4. How can I download or order the data?
   • Availability in digital form:

     Data format:	ARCE(ARC/INFO Export), ARC(ARC/INFO coverage), ARCG(ARC/INFO Ungenerate), and AVSHP (ArcView shape files). (version ARC/INFO 7.0.4 or ArcView 3.0)
     Media you can order:	CD-ROM (format ISO 9660 with Apple HFS extensions)

   • Cost to order the data: See <http://mapping.usgs.gov/esic/prices/index.html>

5. What hardware or software do I need in order to use the data set?

   To use the data sets use ARC/INFO version 7.0.4 or greater. If you do not have ARC/INFO, other similar data sets are available in Adobe Systems Inc. Portable Document Format(TM) (PDF) for viewing. PDFs use Adobe(R) Reader which is available at no charge from Adobe Systems Inc. ArcView 3.0 may also be used.

Who wrote the metadata?

Dates:

Last modified: 09-Sep-1999
Last Reviewed: 27-Aug-1999

Metadata author:

Richard M. Pollastro
U.S. Geological Survey Central Energy Resource Team
Geologist
Mail Stop 939
Box 25046
Denver Federal Center
Denver, Colorado 80225-0046
USA

303-236-5750 (voice)
pollastro@usgs.gov

Metadata standard:

Content Standard for Digital Geospatial Metadata (FGDC-STD-001-1998)

Metadata extensions used:

• <http://geology.usgs.gov/tools/metadata/tools/ext/parts.ext>