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Maps showing geology, oil and gas fields and geological provinces of the Former Soviet Union

Metadata also available as - [Outline] - [Parseable text] - [DIF]

Frequently-anticipated questions:


What does this data set describe?

Title:
Maps showing geology, oil and gas fields and geological provinces of the Former Soviet Union
Abstract:
The map showing Geology, Oil and Gas fields and Geologic Provinces of the Former Soviet Union is a result of a GIS data set designed originally in ESRI's ARC/INFO ver. 7.0.4 and 7.1.2 system.
  1. How should this data set be cited?

    Persits, F. M. , Ulmishek, G. F. , and Steinshouer, D. W. , 1998, Maps showing geology, oil and gas fields and geological provinces of the Former Soviet Union: U.S. Geological Survey Open-File Report 97-470E, 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:

  2. What geographic area does the data set cover?

    West_Bounding_Coordinate: 19.0
    East_Bounding_Coordinate: -170.0
    North_Bounding_Coordinate: 82.
    South_Bounding_Coordinate: 35.0

  3. What does it look like?

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

    Beginning_Date: Aug-1997
    Ending_Date: Jun-1998
    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 Vector data set.

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

      The map projection used is Equidistant Conic.

      Projection parameters:
      Standard_Parallel: 58.5
      Longitude_of_Central_Meridian: 100.0
      Latitude_of_Projection_Origin: 60.0
      False_Easting: 0
      False_Northing: 0

      Planar coordinates are encoded using coordinate pair
      Abscissae (x-coordinates) are specified to the nearest 1
      Ordinates (y-coordinates) are specified to the nearest 1
      Planar coordinates are specified in meters

      The horizontal datum used is N/A.
      The ellipsoid used is Krasovsky.
      The semi-major axis of the ellipsoid used is 6378245.
      The flattening of the ellipsoid used is 1/298.301.

  7. How does the data set describe geographic features?

    Surficial geology
    the geology of each polygon by straigraphic unit, age, and/or lithology. (Source: U.S. Geological Survey)

    glg
    The abbreviated geologic age of the surficial rock formation. (Source: U.S.Geological Survey, values taken from original map legend.)

    ValueDefinition
    QQuaternary (undivided)
    QTQuaternary and Tertiary
    NNeogene
    NPgNeogene and Paleogene
    PgPaleogene
    PgKPaleogene and Cretaceous
    KCretaceous (undivided)
    KJCretaceous and Jurassic
    JJurassic (undivided)
    JTrJurassic and Triassic
    TrTriassic
    PzPaleozoic (undivided)
    PPermian
    TrPTriassic and Permian
    PCPermian - Carboniferous
    CCarboniferous
    CDCarboniferous and Devonian
    DDevonian (undivided)
    DSDevonian and Silurian
    SSilurian
    SOSilurian - Ordovician
    OOrdovician
    OCmOrdovician - Cambrian
    CmCambrian
    pCPrecambrian (undivided)
    CmPtCambrian - Proterozoic
    PtProterozoic
    ZUpper Proterozoic
    YUpper and Middle Proterozoic
    XLower and Middle Proterozoic
    AArchean
    QvExtrusive rocks, Pliocene and Quaternary
    TKiAcidic intrusive rocks, Creteceous, Paleogene and Neogene
    MiAcidic Mesozoic intrusive rocks
    PiPaleozoic intrusive rocks
    PtAiAcidic Proterozoic and Archean intrusive rocks
    iiBasic, Ultrabasic and Alkaline intrusive rocks of unknown age
    othAreas outside of the former Soviet Union
    IceArctic areas covered by Ice
    SeaSea and large lakes
    H2OLakes and wide rivers

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

    code
    A unique number assigned to each province. (Source: U.S.Geological Survey A more in-depth discussion of the geologic provinces and their relative ranking in terms of total known petroleum volume is given in USGS Open File Report 97-463 (see Klett and others, 1997).)

    ValueDefinition
    1003Moscow Basin
    1004Belorussian-Voronezh High
    1005Kotelnich Arch
    1006Mezen Basin
    1007Timan High
    1008Timan-Pechora Basin
    1009Dnieper-Donets Basin
    1010Pripyat Basin
    1011Russian Craton Margin
    1012Poles Saddle
    1013Ukrainian Shield
    1014Donbass Foldbelt
    1015Volga-Ural Region
    1016North Caspian Basin
    1017Ural-Novaya Zemlya Foldbelt
    1018Mugodzhary-South Emba
    1050South Barents Basin
    1051Kola Monocline-Finnmark Platform
    1059Ludlov Saddle
    1060North Barents Basin
    1061Admiralty Arch
    1062Novaya Zemlya Monocline
    1064Grumant Uplift
    1065North Novaya Zemlya Basin
    1066St. Anna Basin
    1067Vize High
    1068Ushakov High
    1069Uedineniya Basin
    1070Central Kara High
    1071Schmidt Basin
    1072Severnaya Zemlya High
    1102Black Sea Deep-Water Basin
    1103Dobrogea Foreland
    1104Crimea High
    1105North Crimea Basin
    1106Northeast Black Sea Shelf
    1107Black Sea Continental Slope
    1107Black Sea Continental Slope
    1108Azov-Kuban Basin
    1109Middle Caspian Basin
    1110Great Caucasus Foldbelt
    1111Rioni Basin
    1112South Caspian Basin
    1113Kura Basin
    1117Arctic Ocean Slope
    1150North Ustyurt Basin
    1151East Aral Basin
    1152Mangyshlak-Ustyurt Foldbelt
    1153Karabogaz-Karakum High
    1154Amu-Darya Basin
    1155Kopet-Dag Foldbelt
    1156Afghan-Tajik Basin
    1157Pamir High
    1158Tian Shan Foldbelt
    1159Fergana Basin
    1160Alay Basin
    1161Naryn Basin
    1162Issyk-Kul Basin
    1163West Ili Basin
    1164East Ili Basin
    1165Chu-Sarysu Basin
    1166Turgay Depression
    1167South Turgay Basin
    1168Central Kazakhstan Folded Region
    1169Alakol Basin
    1170Zaysan Basin
    1171Kuznetsk Basin
    1172North Minusa Basin
    1173South Minusa Basin
    1174West Siberian Basin
    1175Yenisey-Khatanga Basin
    1176Taimyr-Kara High
    1177Syr-Darya Basin
    1178East Aral Slope
    1200Anabar Basin
    1201Khatanga Saddle
    1202Anabar-Olenek High
    1203Tunguska Basin
    1204Turukhan-Norilsk Folded Zone
    1205Turukhan-Igarka Uplift
    1206Yenisey Ridge
    1207Baykit Arch
    1208Cis-Sayan Basin
    1209Angara-Lena Terrace
    1210Nepa-Botuoba Arch
    1211Cis-Patom Foredeep
    1212Kempendiay Region
    1214Lena-Vilyuy Basin
    1215Aldan Uplift
    1216Aldan Shield
    1217Upper Zeya Basin
    1218Laptev Shelf
    1219Altay-Sayan Folded Region
    1220Bureya-Dunbey Region
    1222Zeya-Bureya Basin
    1223Upper Bureya Basin
    1224Sikhote-Alin Folded Region
    1225Suifun Basin
    1226Khanka Basin
    1227Middle Amur Basin
    1230Baikal-Patom Folded Region
    1250Verkhoyan-Chukotka Folded Region
    1251Zyryanka Basin
    1252Moma Basin
    1253Ayon Basin
    1254Blagoveshchensk Basin
    1255Anzhu Uplift
    1256Novosibirsk Basin
    1257De Long High
    1258North Chukchi Basin
    1259Wrangel Basin
    1260Wrangel-Herald Uplift
    1261South Chukchi-Hope Basin
    1300Anadyr Basin
    1301Gangut High
    1302Khatyrka Basin
    1303Penzhina Basin
    1304Koryak-Kamchatka Foldbelt
    1305Kinkil Basin
    1306Talov Uplift
    1307Gizhigin Basin
    1308Koni-Tayganos Uplift
    1309North Okhotsk Group of Basins
    1310Tinro Basin
    1311West Kamchatka Basin
    1312Central Kamchatka Group of Basins
    1313East Kamchatka Uplift
    1314Olyutor Basin
    1315East Kamchatka Basin
    1316Kuril-Kamchatka Slope
    1317Onekotan Basin
    1318South Kuril Basin
    1319Central Okhotsk High
    1320South Okhotsk Basin
    1321Deryugin Basin
    1322North Sakhalin Basin
    1323East Sakhalin Uplift
    1324Terpeniya Bay Basin
    1325West Sakhalin Uplift
    1326Susunay Uplift
    1327Aniva Basin
    1328Tatar Strait Basin

    name
    A unique is name assigned to each province. (Source: A more in-depth discussion of the geologic provinces and their relative ranking in terms of total known petroleum volume is given in USGS Open File Report 97-463 (see Klett and others, 1997).)

    ValueDefinition
    Moscow Basin 
    Belorussian-Voronezh High 
    Kotelnich Arch 
    Mezen Basin 
    Timan High 
    Timan-Pechora Basin 
    Dnieper-Donets Basin 
    Pripyat Basin 
    Russian Craton Margin 
    Poles Saddle 
    Ukrainian Shield 
    Donbass Foldbelt 
    Volga-Ural Region 
    North Caspian Basin 
    Ural-Novaya Zemlya Foldbelt 
    Mugodzhary-South Emba 
    South Barents Basin 
    Kola Monocline-Finnmark Platform 
    Ludlov Saddle 
    North Barents Basin 
    Admiralty Arch 
    Novaya Zemlya Monocline 
    Grumant Uplift 
    North Novaya Zemlya Basin 
    St. Anna Basin 
    Vize High 
    Ushakov High 
    Uedineniya Basin 
    Central Kara High 
    Schmidt Basin 
    Severnaya Zemlya High 
    Black Sea Deep-Water Basin 
    Dobrogea Foreland 
    Crimea High 
    North Crimea Basin 
    Northeast Black Sea Shelf 
    Black Sea Continental Slope 
    Black Sea Continental Slope 
    Azov-Kuban Basin 
    Middle Caspian Basin 
    Great Caucasus Foldbelt 
    Rioni Basin 
    South Caspian Basin 
    Kura Basin 
    Arctic Ocean Slope 
    North Ustyurt Basin 
    East Aral Basin 
    Mangyshlak-Ustyurt Foldbelt 
    Karabogaz-Karakum High 
    Amu-Darya Basin 
    Kopet-Dag Foldbelt 
    Afghan-Tajik Basin 
    Pamir High 
    Tian Shan Foldbelt 
    Fergana Basin 
    Alay Basin 
    Naryn Basin 
    Issyk-Kul Basin 
    West Ili Basin 
    East Ili Basin 
    Chu-Sarysu Basin 
    Turgay Depression 
    South Turgay Basin 
    Central Kazakhstan Folded Region 
    Alakol Basin 
    Zaysan Basin 
    Kuznetsk Basin 
    North Minusa Basin 
    South Minusa Basin 
    West Siberian Basin 
    Yenisey-Khatanga Basin 
    Taimyr-Kara High 
    Syr-Darya Basin 
    East Aral Slope 
    Anabar Basin 
    Khatanga Saddle 
    Anabar-Olenek High 
    Tunguska Basin 
    Turukhan-Norilsk Folded Zone 
    Turukhan-Igarka Uplift 
    Yenisey Ridge 
    Baykit Arch 
    Cis-Sayan Basin 
    Angara-Lena Terrace 
    Nepa-Botuoba Arch 
    Cis-Patom Foredeep 
    Kempendiay Region 
    Lena-Vilyuy Basin 
    Aldan Uplift 
    Aldan Shield 
    Upper Zeya Basin 
    Laptev Shelf 
    Altay-Sayan Folded Region 
    Bureya-Dunbey Region 
    Zeya-Bureya Basin 
    Upper Bureya Basin 
    Sikhote-Alin Folded Region 
    Suifun Basin 
    Khanka Basin 
    Middle Amur Basin 
    Baikal-Patom Folded Region 
    Verkhoyan-Chukotka Folded Region 
    Zyryanka Basin 
    Moma Basin 
    Ayon Basin 
    Blagoveshchensk Basin 
    Anzhu Uplift 
    Novosibirsk Basin 
    De Long High 
    North Chukchi Basin 
    Wrangel Basin 
    Wrangel-Herald Uplift 
    South Chukchi-Hope Basin 
    Anadyr Basin 
    Gangut High 
    Khatyrka Basin 
    Penzhina Basin 
    Koryak-Kamchatka Foldbelt 
    Kinkil Basin 
    Talov Uplift 
    Gizhigin Basin 
    Koni-Tayganos Uplift 
    North Okhotsk Group of Basins 
    Tinro Basin 
    West Kamchatka Basin 
    Central Kamchatka Group of Basins 
    East Kamchatka Uplift 
    Olyutor Basin 
    East Kamchatka Basin 
    Kuril-Kamchatka Slope 
    Onekotan Basin 
    South Kuril Basin 
    Central Okhotsk High 
    South Okhotsk Basin 
    Deryugin Basin 
    North Sakhalin Basin 
    East Sakhalin Uplift 
    Terpeniya Bay Basin 
    West Sakhalin Uplift 
    Susunay Uplift 
    Aniva Basin 
    Tatar Strait Basin 

    TYPE
    Region type (Source: U.S.Geological Survey)

    ValueDefinition
    bboutique
    ppriority

    REG
    Region (Source: USGS Open File Report 97-463 (see Klett and others, 1997).)

    ValueDefinition
    0none given
    1Former Soviet Union
    2North Africa and the Middle East
    3Asia Pacific Region
    4Europe
    5North America
    6South America
    7Subsaharan Africa
    8South Asia

    Centerpoints of Oil and Gas fields
    Point that marks the approximate center of oil and gas fields. (Source: U.S. Geological Survey)

    Fie_type
    ARC/INFO Feature Attribute Table Item stands for Oil and/or Gas field type. Defines major types of oil/gas fields. (Source: Petroconsultants International Data Corp.)

    ValueDefinition
    Gas 
    Gas and condensate 
    Gas and oil 
    Gas, cond and oil 
    Oil, 
    Oil and gas 
    Oil, gas, and cond. 

    country boundaries
    Arcs that define country boundaries as a general reference. The name of the country and many other attributes of the country. (Source: ESRI's ArcWorld 1:3 million cartographic layers and cntry94 update.)

    Entity_and_Attribute_Overview:
    The ARC/INFO coverage "pol1" and ARCVIEW shape file "pol1" are provided for two purposes: 1. As the reference coverage for rubber transformation of "geo1" geology coverage. 2. As a general reference of country boundaries on the Map. Complete description of the attributes can be found in the ArcWorld dcoumentation.
    Entity_and_Attribute_Detail_Citation: ArcWorld 1:3 million cartographic layers
    Major cities
    Location of the major cities. (Source: ESRI's ArcWorld 1:3 million cartographic layers)

    name
    Name of city. (Source: ESRI)

    ValueDefinition
    Murmansk 
    Gdansk 
    Wroclaw 
    Brno 
    Helsinki 
    Tallinn 
    Lodz 
    Riga 
    Warsaw 
    Krakow 
    Saint Petersburg 
    Vilnius 
    Arkhangelsk 
    Lvov 
    Minsk 
    Kiev 
    Kishinev 
    Moskva 
    Odessa 
    Magadan 
    Nizhniy Novgorod 
    Kharkiv 
    Dnipropetrovsk 
    Donetsk 
    Kazan 
    Perm 
    Rostov-na-Donu 
    Samara 
    Volgograd 
    Yekaterinburg 
    Ufa 
    Chelyabinsk 
    Erzurum 
    TBilisi 
    Omsk 
    Yerevan 
    Novosibirsk 
    Tabriz 
    Baky 
    Khabarovsk 
    Karaganda 
    Irkutsk 
    Tehran 
    Qiqihar 
    Harbin 
    Vladivostok 
    Ashkhabad 
    Esfahan 
    Toshkent 
    Mashhad 
    Almaty 
    Frunze 
    Samarkand 
    Shiraz 
    Dushanfe 

    longitude and latitude graticule
    Reference geographic grid 6X4 degrees (Source: U.S. Geological Survey)

    Entity_and_Attribute_Overview:
    This ARC/INFO coverage "llf1" and ARCVIEW shape file "llf1" have been created by ARC/INFO GENERATE program as the reference georaphic neatlines on the Map.
    Entity_and_Attribute_Detail_Citation: U.S. Geological Survey
    Project File /views/rus_geo.apr
    an ARCVIEW Project File used for displaying major GIS layers within ArcView (Source: U.S.Geological Survey)

  8. What are the components of this data set?

    fsumap.pdf (file)
    This file contains a complete color map of geology, oil and gas field centerpoints from the Petroconsultants 1996 database, geological provinces at the scale of 1:7,500,000, country boundaries from ESRI's ArcWorld (1:3 million) in an Adobe Portable Document File (PDF) format. The PDF file is 13 pages and includes geological provinces list sorted by Name and by Code.
    This PDF file is readable by means of the freeware program, Acrobat Reader 3 (or greater), which is included on the CD-ROM. This PDF file and accompanying software permits users to preview the map data contained in this product; understand methodoligies in creating the product; link from geologic province name or number to that specific area on the maps and also to print/plot these data.
    fsu_geo.aep (file)
    (Workspace is \fsu\views - source ArcView shape files). This file consists of geology, geologic province, oil and gas fields centerpoints, major cities, and latitude/longitude grid layers (ArcView themes).
    This file is readable by means of the freeware program, ESRI's ArcExplorer 1.1. It can be downloaded FREE from ESRI home page -<http://www.esri.com/software/arcexplorer/index.html>
    ARC_COVR (directory)
    Contains original UNIX ARC/INFO (ver. 7.1.2) coverages in (Equidistant Conic projection -

    geo1 (coverage)
    Surficial geology. Item "glg" in Feature Attribute Table.
    prov1 (coverage)
    Geological Provinces that outline areas with common geological structures and petroleum systems.
    fld1 (coverage)
    Centerpoints of Oil and Gas fields (Petroconsultants).
    pol1 (coverage)
    Political boundaries (data from ESRI)
    llf1 (coverage)
    Latitude/Longitude gradicule with cell size 4 by 6 degrees
    ocean (coverage)
    annotations for Ocean names
    city1 (coverage)
    Major cities (data from ESRI)
    outline (coverage)
    outer map boundary (neatline).
    info (directory)
    a standard ARC/INFO info directory.

    rus_wep.lut (file)
    Look-up table with shade codes for attribute "glg"
    index.lut (file)
    Look-up table with shade codes for Regions

    EXPORT (directory)
    Contains several subsets in EXPORT and UNGENERATE formats
    ARC/INFO EXPORT data set (Equidistant Conic projection) consists of eight files in ARC/INFO INTERCHANGE format (*.e00 files without compression). File names correspond to the original coverages names.
    ARC/INFO UNGENERATE files (ASCII comma delimited) for seven of major coverages except "ocean" (*.gen extention). File names correspond to the original coverage names.
    The attribute files (*.csv extention) contain ASCII, comma delimited data for the seven feature attribute tables of the ARC/INFO coverages - geo1, fld1, city1, llf1, pol1, prov1.
    PLOT (directory)
    Graphic files of various formats

    rus_all.gra (file)
    ARC/INFO graphic file to draw the complete map on supported graphic displays.
    rus_all.rtl (file)
    RTL file (ready to use plot file for HP650 color plotter).
    rus_all.eps (file)
    Encapsulated Postscript file for the map (used as input for ADOBE PDF file). This file directly loadable to Adobe Illustrator 7.0.
    rus_prov.eps (file)
    Encapsulated Postscript file same as above but without geology.
    index.gra (file)
    File to draw a small world index map on upper left map corner of the large-scale map of region 1.
    index.eps (file)
    Same as above but it is used for the first page of ADOBE PDF file.

    TEXT (directory)

    plot_map (file)
    AML program to produce complete plot of the map at a scale 1:7,500,000 and to plot that map on HP650C plotter (compiled by F. Persits). To use this file the user must copy it to a master directory and rest of the files in corresponding subdirectories under this master directory like /text, /arc_covr, etc.
    usgs (file)
    U.S.G.S. title text.
    source (file)
    description of source map and data processing steps.
    prov_nam (file)
    List of USGS Geologic Province names.
    proj (file)
    Map projection descriptive text.
    dsclaim (file)
    Text for disclaimer.
    equi_geo (file)
    Projection data for ARC/INFO PROJECT.
    fnt034 (file)
    Pattern for rus_shd shadeset.
    geo_key (file)
    Key-legend file for Geologic Legend.
    intro (file)
    Introductory text for the Map.
    mapbar (file)
    AML program for drawing scale and scalebar (by B. Beeman).
    offile (file)
    Open File report text.
    oil_key (file)
    Key-legend file for Oil/Gas fields centerpoints.
    pol_key (file)
    Key-legend file for International boundaries.
    con_key (file)
    Key-legend file for geologic polygon outline.
    city_key (file)
    Key-legend file for Major cities markers.
    rus_shd (file)
    Polygon shadeset file.
    rus_wep (file)
    INFO look-up table for ARC/INFO POLYGONSHADE based on "glg" item in geo1.pat.
    prov_key (file)
    Key-legend for Geologic Province outline.
    refer (file)
    References (other related sources of information).

    VIEWS (directory)
    ARCVIEW (ver 3.0) data set consists of 21 files. The most significant is project file - "rus_geo.apr". There are six shape-files (*.shp) corresponding to six major ARCINFO coverages - geo1, fld1, prov1, latlong, city, ouline. Every shape file is supplemented by the two standard ARCVIEW files with *.shx and *.dbf extentions. There are two legend files for geology theme -

    rus_geo.avl (file)
    Indexes and names for geologic map units
    fld.avl (file)
    Legend for oil/gas markers


Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)

  2. Who also contributed to the data set?

    Digital Map Compilation - Feliks Persits
    Geological Attribution - Feliks Persits, Douglas Steinshouer
    Province Boundaries - Gregory Ulmishek
    Province Boundaries Digital Compilation - Lee Osmonson
    Oil and Gas Database - Tim Klett

  3. To whom should users address questions about the data?

    Feliks Persits
    USGS Central Energy Resource Team
    GIS Contractor
    Mail Stop 939
    Box 25046
    Denver Federal Center
    Denver, Colorado 80225-0046
    USA

    303-236-3612 (voice)
    303-236-0459 (FAX)
    fpersits@usgs.gov


Why was the data set created?

The data provides governments, geological community, consultants, and public with important information on the geological basis used to define provinces and oil and gas fields for U.S.G.S. Oil and Gas assessement of the World. The map is a visual summary of the data gathered for region 1.


How was the data set created?

  1. From what previous works were the data drawn?

    Paper Geologic Map (source 1 of 3)
    Vsesoyuzniy Nauchno-Issledovatel'skiy Geologicheskiy Institute (VSEGEI)., 1966, Geologic Map of The USSR, scale 1:7,500,000: Ministry of Geology of the USSR, Leningrad, USSR.

    Other_Citation_Details: unknown
    Type_of_Source_Media: Paper
    Source_Scale_Denominator: 7500000
    Source_Contribution:
    The two paper map sheets are used as the sources for creation of the corresponding ARC/INFO coverages.

    Centerpoints of Oil and Gas Fields (source 2 of 3)
    Petroconsultants International Data Corp., 1996, Petroleum exploration and production database: Petroconsultants International Data Corp., Houston, Texas.

    Other_Citation_Details:
    All data in Petroworld Database use Latitude and Longitude coordinates in Decimal Degrees.
    Type_of_Source_Media: CD-ROM
    Source_Contribution:
    Centerpoints of Oil and Gas Fields are reprojected to Equidistant Conic Projection and used as a general reference for the number, distribution, and location of oil and gas field centerpoints. They are also used as the layer on final ARC/INFO Map plot and ARCVIEW project.

    ARCDATA (source 3 of 3)
    ESRI, 1992, ArcWorld 1:3 million cartographic layers.: ESRI, Redlands, CA, USA.

    Other_Citation_Details:
    There are many informational layers in this data set. Coordinates are Latitude and Longitude in Decimal Degrees.
    Type_of_Source_Media: CD-ROM
    Source_Scale_Denominator: 3000000
    Source_Contribution:
    The external source for country boundaries, rivers and cities for rubber transformation and as a general reference in ARC/INFO final Map plot. Country boundaries, centerlines of rivers and major cities.

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

    Date: Oct-1997 (process 1 of 3)
    Scanning original paper maps on large format Anatech Eagle scanner. There is one copy for each of two sheets - gray scale (after original map scanning). Images are in TIFF format at 200 dot/inch resolution. The images then transformed to Equidistant Conic Projection by ARC/INFO GRIDWARP program (polynomial of the second order). The "from-to" links for transformation are created by ARC/INFO CONTROLPOINTS program where latitude/longitude grid (point coverage) with cell size 6X4 degrees is used as a reference.

    Data sources used in this process:

    • Paper Geologic Map

    Date: Nov-1997 (process 2 of 3)
    Georeferenced gray scale images from the first step are vectorized by the method of extraction linear features described by F.Persits, 1997, (USGS open-file report OF-97-713), and then corrected by hands-on digitization.

    Date: Feb-1998 (process 3 of 3)
    A series of piecewise "rubbersheet" transformations are applied to the ARC/INFO coverages created after the vectorizing is completed. The ARC/INFO coverages used for transformation are ESRI's ArcWorld 1:3 million GIS cartographic layers (RIV3M, CTRY3M). To perform rubber transformation the combination of ARC/INFO ARCEDIT (add links) and ADJUST programs are applied. There are a number of such transformations for every limited area on original coverage.

  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 is based on accuracy of general geology coverage. Since all the attributes are of character type, only correctness of polygon labelling can be provided (see below).

  2. How accurate are the geographic locations?

    1. Original geological maps are of 750 meter maximum accuracy (0.1 mm on paper map of 1:7,500,000 scale)
    2. Scanned images are of 200 dot/inch resolution (0.1 mm on paper). That is why fuzzy tolerance for CLEAN programm in ARC/INFO is set to 1500 m (two pixels).
    3. Several steps are taken to vectorize scanned images. The projection and coordinate system for the original map are not given. Therefore it is necessary to georeference the map to real world coordinates. This is done as follows:
    3.1. The latitude/longitude graticule with cell size 4 * 6 degree is projected to Equidistant Conic projection and then used to create ARC/INFO point coverage. That point coverage is used to create "to - from" links by ARC/INFO CONTROLPOINTS program.
    3.2 A gray-scale scanned image of the original paper map is transformed to Equidistant Conic projection by ARC/INFO GRIDWARP program (polynomial of the second order) using the "to - from" links created by CONTROLPOINTS program.
    3.3 The scanned image from the second step is vectorized by the method of extraction of linear features described by F.Persits, 1997, (USGS open-file report OF-97-713), and then corrected by hands-on digitization.
    3.4 A series of piecewise "rubbersheet" transformations are applied to the final ARC/INFO coverage. The ARC/INFO coverages that are used for transformation were ESRI's ArcWorld 1:3 million GIS cartographic layers.
    Overall position error is estimated with a randomly selected set of locations on the ESRI coverages and comparing the same locations on the final geology coverage (geo1). RMS error is 4.8 km (0.64 mm of the original paper map) with maximum error about 12 km (1.6 mm on original paper map).

  3. How accurate are the heights or depths?

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

    All data are found to be topologically correct. The generalizations of original geological map (VSEGEI) were carried out: (1) Several geological age subdivisions on the original (VSEGEI) 1:7,500,000 geological map are combined into single units (for example, all Cretaceous are combined into one unit); and (2) all the Precambrian subdivisions are combined into one unit. The version of Geologic Province Boundaries is correct as of April 1998.

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

    Since the data set is collection of ARC/INFO coverages, topological consistency is supported. The same fuzzy tolerance is maintained through all processing steps (1500). Based on fuzzy tolerance value all undershoots and overshoots are detected and deleted. A comparison between color plot and original paper map was carried out by visual comparison. Color plots in 1:7,500,000 scale were superimposed on each of corresponding original map sheets. All errors detected in attributes were corrected.


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 are 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 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 (attach_b.txt) on this CD-ROM for further information on ESRI's license agreement. ESRI and MapObjects are registerd trademarks in the United States and are either trademarks or registered trademarks in all other countries where they are used, and ArcExplorer is a trademark of Environmental Systems Research, Inc.
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 these 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" file on this CD-ROM for more comprehensive information concerning ESRI's license agreement. ESRI and MapObjects are registerd trademarks in the United States and are either trademarks or registered trademarks in all other countries where they are used, and ArcExplorer is a trademark of Environmental Systems Research, Inc.

  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 80225-00286
    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 97-470E

  3. What legal disclaimers am I supposed to read?

    Although these data have been processed on 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?

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

    To use coverage data you need ARC/INFO ver. 7.0.4 or higher installed. To use ARCVIEW data you need ARCVIEW 3.0 or higher installed. If you dont't have ARC/INFO or ARCVIEW a similar text and map data set are available via Adobe Systems, Inc., Portable Document Format(TM) (PDF). (It is available on the CD-ROM or download and install the Adobe(R) Reader version 3.0 or greater. The reader is available at no charge from Adobe Systems. An ArcExplorer data set is accessable by downloading ESRI's ArcExplorer 1.1 from <http://www.esri.com/software/arcexplorer/index.html> (currently available for WIN95 and WIN-NT only) (Mac users may have success in using ArcExplorer in combination with SoftPC (TM) or VirtualPC (TM)).


Who wrote the metadata?

Dates:
Last modified: 08-Sep-1999
Last Reviewed: 08-Sep-1999
Metadata author:
Feliks Persits
USGS Central Energy Resource Team
GIS Contractor
Mail Stop 939
Box 25046
Denver Federal Center
Denver, Colorado 80225-0046
USA

303-236-3612 (voice)
303-236-0459 (FAX)
fpersits@usgs.gov

Metadata standard:
Content Standard for Digital Geospatial Metadata (FGDC-STD-001-1998)
Metadata extensions used:


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