Identification_Information:
  Citation:
    Citation_Information:
      Originator: Christopher D. French and Christopher J. Schenk, U.S. Geological Survey, Central Energy Resources Team
      Publication_Date: 2005
      Title: Geology of the Gulf of Mexico Region (geolcaribg)
      Geospatial_Data_Presentation_Form: Digital Maps
      Publication_Information:
        Publisher: U.S. Geological Survey, Central Energy Resources Team
      Online_Linkage: http://certmapper.cr.usgs.gov/pubs/servlet/PubBroker?issue=ofr97470l&path=/graphic/data.htm
      Larger_Work_Citation:
        Citation_Information:
          Originator: Christopher D. French and Christopher J. Schenk, U.S. Geological Survey, Central Energy Resources Team
          Publication_Date: 2005
          Title: Map Showing Geology, Oil and Gas Fields, and Geologic Provinces of the Gulf of Mexico Region
          Series_Information:
            Series_Name: U.S. Geological Survey Open-File Report
            Issue_Identification: OFR-97-470-L
          Publication_Information:
            Publication_Place: Denver, Colorado
            Publisher: U.S. Geological Survey, Central Energy Resources Team
          Other_Citation_Details: Open File Report 97-470-L is one of a series of continental-scale geologic maps of the world being published on CD-ROM by the U.S. Geological Survey World Energy Project.
          Online_Linkage: http://pubs.usgs.gov/of/1997/ofr-97-470/OF97-470L/
  Description:
    Abstract: This dataset includes polygons that describe the geologic age of surface outcrops of bedrock of the Caribbean region within the Gulf of Mexico map extent (Bahamas, Belize, Cuba, Guatemala, Honduras, Jamaica, (named countries may not be completely shown on map)).
    Purpose: To delineate geologic contacts and thematically depict generalized geologic age of outcrops in Open File Report 97-470-L Surface Geology, Oil and Gas Fields, and Geologic Provinces of the Gulf of Mexico, which was compiled as a reference for the U.S. Geological Survey World Energy Project assessment of undiscovered, technically recoverable oil and gas resources of the world.  This dataset was used to produce maps in ESRI ArcMap 8.3 and Adobe Acrobat PDF formats.  Files were exported from geodatabase feature class to ESRI shapefile and ArcInfo export formats for use in other applications.
  Time_Period_of_Content:
    Time_Period_Information:
      Single_Date/Time:
        Calendar_Date: 2005
    Currentness_Reference: publication date
  Status:
    Progress: Complete
    Maintenance_and_Update_Frequency: None planned
  Spatial_Domain:
    Bounding_Coordinates:
      West_Bounding_Coordinate: -92.204269
      East_Bounding_Coordinate: -76.505275
      North_Bounding_Coordinate: 27.261730
      South_Bounding_Coordinate: 14.778363
  Keywords:
    Theme:
      Theme_Keyword_Thesaurus: None
      Theme_Keyword: Geology
      Theme_Keyword: Age
      Theme_Keyword: Geologic Age
      Theme_Keyword: Oil
      Theme_Keyword: Gas
      Theme_Keyword: Geologic Province
      Theme_Keyword: Geologic Map
      Theme_Keyword: Surface Geology
      Theme_Keyword: World Energy Resources
      Theme_Keyword: World Energy Project
    Theme:
      Theme_Keyword_Thesaurus: Gateway to the Earth draft 9 28-Jun-2002
      Theme_Keyword: Coal resources
      Theme_Keyword: Coalbed methane resources
      Theme_Keyword: Natural gas resources
      Theme_Keyword: Economic geology
      Theme_Keyword: Oil resources
      Theme_Keyword: Oil shale resources
      Theme_Keyword: Oil sand resources
    Theme:
      Theme_Keyword_Thesaurus: ArcIMS Metadata Server Theme Codes
      Theme_Keyword: geoscientificInformation
      Theme_Keyword: economy
      Theme_Keyword: environment
      Theme_Keyword: imageryBaseMapsEarthCover
    Theme:
      Theme_Keyword_Thesaurus: Central Energy Resources Team Keyword Thesaurus
      Theme_Keyword: Earth Science
      Theme_Keyword: U.S. Geological Survey
      Theme_Keyword: USGS
      Theme_Keyword: Geology
      Theme_Keyword: Natural Gas
      Theme_Keyword: Petroleum
      Theme_Keyword: Coalbed Methane
      Theme_Keyword: Coal
      Theme_Keyword: Resource Assessment
    Place:
      Place_Keyword_Thesaurus: None
      Place_Keyword: Gulf of Mexico
      Place_Keyword: United States
      Place_Keyword: Mexico
      Place_Keyword: Caribbean
      Place_Keyword: Bahamas
      Place_Keyword: Belize
      Place_Keyword: Cayman Islands
      Place_Keyword: Cuba
      Place_Keyword: Guatemala
      Place_Keyword: Honduras
      Place_Keyword: Jamaica
      Place_Keyword: Nicaragua
      Place_Keyword: US
      Place_Keyword: MX
      Place_Keyword: BB
      Place_Keyword: BZ
      Place_Keyword: CO
      Place_Keyword: CU
      Place_Keyword: GT
      Place_Keyword: HN
      Place_Keyword: JM
      Place_Keyword: NI
      Place_Keyword: Andarko Basin (5058)
      Place_Keyword: Appalachian Basin (5067)
      Place_Keyword: Arkoma Basin (5062)
      Place_Keyword: Atlantic Coastal Plain (5070)
      Place_Keyword: Atlantic Mesozoic OCS (5099)
      Place_Keyword: Bahama Platform (6119)
      Place_Keyword: Bend Arch-Fort Worth Basin (5045)
      Place_Keyword: Black Warrior Basin (5065)
      Place_Keyword: Blue Ridge Thrust Belt (5068)
      Place_Keyword: Burros Uplift (5322)
      Place_Keyword: Campeche-Sigsbee Salt Basin (5307)
      Place_Keyword: Cayman Ridge (6121)
      Place_Keyword: Cayman Trough (6120)
      Place_Keyword: Central Mesa (5318)
      Place_Keyword: Cherokee Platform (5060)
      Place_Keyword: Chiapas Massif (5311)
      Place_Keyword: Chiapas Massif-Nuclear Central America (6122)
      Place_Keyword: Chicontepec Basin (5317)
      Place_Keyword: Choco Pacific Basin (6087)
      Place_Keyword: Cincinnati Arch (5066)
      Place_Keyword: Coahuila Platform (5321)
      Place_Keyword: Columbian Basin (6112)
      Place_Keyword: East Texas Basin (5048)
      Place_Keyword: Florida Peninsula (5050)
      Place_Keyword: Greater Antilles Deformed Belt (6117)
      Place_Keyword: Guerrero Basin (5315)
      Place_Keyword: Gulf Cenozoic OCS (5097)
      Place_Keyword: Gulf Mesozoic OCS (5098)
      Place_Keyword: Illinois Basin (5064)
      Place_Keyword: Jalisco-Oaxaca Platform (5314)
      Place_Keyword: Louisiana-Mississippi Salt Basins (5049)
      Place_Keyword: Macuspana Basin (5306)
      Place_Keyword: Magiscatzin Basin (5325)
      Place_Keyword: Marathon Thrust Belt (5046)
      Place_Keyword: Maya Mountains (6125)
      Place_Keyword: Middle America Province (6113)
      Place_Keyword: Nemaha Uplift (5055)
      Place_Keyword: North Nicaraguan Rise (6114)
      Place_Keyword: Ocean (1)
      Place_Keyword: Ocean (0)
      Place_Keyword: Pacific Offshore Basin (6088)
      Place_Keyword: Palo Duro Basin (5043)
      Place_Keyword: Parras Basin (5320)
      Place_Keyword: Pedernal Uplift (5042)
      Place_Keyword: Permian Basin (5044)
      Place_Keyword: Piedmont (5069)
      Place_Keyword: Raton Basin-Rio Grande Uplift (5041)
      Place_Keyword: Sabinas Basin (5323)
      Place_Keyword: Saline-Comalcalco Basin (5304)
      Place_Keyword: Sierra Madre de Chiapas-Peten Foldbelt (5310)
      Place_Keyword: Sierra Madre Occidental Volcanic Plateau (5327)
      Place_Keyword: Sierra Madre Oriental Foldbelt (5313)
      Place_Keyword: South Nicaraguan Rise (6115)
      Place_Keyword: Southern Oklahoma (5061)
      Place_Keyword: Tamaulipas Arch (5324)
      Place_Keyword: Tampico-Misantla Basin (5301)
      Place_Keyword: Torrecon-Sierra Madre Oriental Foldbelt (5319)
      Place_Keyword: Trans-mexican Neovolcanic Axis (5316)
      Place_Keyword: Tuxla Uplift (5303)
      Place_Keyword: Veracruz Basin (5302)
      Place_Keyword: Villahermosa Uplift (5305)
      Place_Keyword: Western Gulf (5047)
      Place_Keyword: Yucatan Basin (6123)
      Place_Keyword: Yucatan Platform (5308)
  Access_Constraints: None
  Use_Constraints: None
  Point_of_Contact:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: U.S. Geological Survey, Central Energy Resources Team
        Contact_Person: Christopher D. French
      Contact_Position: GIS Specialist
      Contact_Address:
        Address_Type: mailing address
        Address: U.S. Geological Survey, Box 25046, MS 939, Denver Federal Center
        City: Denver
        State_or_Province: Colorado
        Postal_Code: 80225
        Country: USA
      Contact_Voice_Telephone: 303-236-1655
      Contact_Facsimile_Telephone: 303-236-0459
      Contact_Electronic_Mail_Address: chfrench@usgs.gov
  Browse_Graphic:
    Browse_Graphic_File_Name: http://pubs.usgs.gov/of/1997/ofr-97-470/OF97-470L/graphic/web_images/geol_lgthumb.jpg
    Browse_Graphic_File_Description: Gulf of Mexico Geology
    Browse_Graphic_File_Type: JPEG
  Data_Set_Credit:
    Scanning of source map, georeferencing, digitizing, attributing, editing and preparation of geodatabase feature class - Christopher D. French.  
    Metadata Creation - Christopher D. French.  
    Project coordination - Christopher J. Schenk.
  Native_Data_Set_Environment: Microsoft Windows XP Professional 5.1 (Build 2600) Service Pack 1; ESRI ArcCatalog 8.3.0.800
Data_Quality_Information:
  Attribute_Accuracy:
    Attribute_Accuracy_Report:
      Some special geologic age symbols have been modified to use standard character types.  Examples of this modification occur in the geologic codes for Triassic, Mesozoic, and Precambrian rock types.  No generalization (grouping) was performed on geologic age attributes.  Any unidentified polygons on the source map are attributed as "Und" - Undetermined.

      The scanned source maps were used as a reference for attributing.
  Logical_Consistency_Report:
    Polygon topology exists.  Geodatabase topology rules used to identify and correct gaps and overlaps in the polygon feature class.  Geodatabase coded domains used for attributing.

    Most geologic descriptions follow naming conventions found on the original source map.  Some descriptions may be abbreviated.  Several polygons were of an undetermined age because of printing problems or lack of clarity on original source map.  There was no grouping of ages in the attributing process.
  Completeness_Report: Complete
  Positional_Accuracy:
    Horizontal_Positional_Accuracy:
      Horizontal_Positional_Accuracy_Report:
        Horizontal positional accuracy was not formally quantified.  Some details about the scanning and referencing process along with errors are stated below.

        1)  The original source map was provided in two plates at a scale of 1:2,500,000.  Each plate was scanned at 300 dpi in RGB color mode.  Adobe Photoshop 6.0 was used to merge east and west images together at edges.  Some discrepancies were noticed on edge match.  Edge mismatch was no greater than 500 m in a few areas, while good matches were found elsewhere.  Discrepancies were averaged while digitizing.  

        2)  A vector dataset originating from the National Imagery and Mapping Agency (NIMA) Digital Chart of the World (DCW) series was available for georeferencing.  This dataset is known to have a nominal scale of 1:1,000,000 and was available as a shapefile from the United States Geological Survey, Digital Data Series DDS-62-A Global GIS Database: Digital Atlas of Central and South America.

        3)  The ArcMap 8.3 georeferencing tool was used to establish control points and reference merged image.  The original maps were provided in Mercator projection with true scale at 19 degrees north latitude.  Attempts were made to transform the reference shapefile to the stated projection for georeferencing, but major errors existed along southern edges of map.  A geographic coordinate system (WGS_1984) was used with more success.  57 control points were established to perform a 3rd order polynomial transformation.  Other transformation methods were attempted along with other control point placement, but resulted in more error.  A root mean square (RMS) error of 1611.8 m was recorded.

        4)  Discrepancies were anticipated between source map shorelines and country boundaries because of scale difference.  Other distortions may have been inherent in the source maps.  Overall dimensions of map fit well at desired display scale of 1:2,500,000.  Discrepancies in shoreline were random and variable, rarely exceeding 3,500 m.
    Vertical_Positional_Accuracy:
      Vertical_Positional_Accuracy_Report: Not Assessed
  Lineage:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: J.E. Case and T.L. Holcombe
          Publication_Date: 1980
          Title: Geologic-Tectonic Map of the Caribbean Region
          Geospatial_Data_Presentation_Form: map
          Series_Information:
            Series_Name: Miscellaneous Investigations Series
            Issue_Identification: Map I-1100
          Publication_Information:
            Publication_Place: Reston, VA
            Publisher: USGS
          Other_Citation_Details: Prepared in cooperation with the United States Naval Oceanographic Office and the United States Naval Ocean Research and Development Activity.
          Online_Linkage: N/A
      Source_Scale_Denominator: 2500000
      Type_of_Source_Media: paper
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Single_Date/Time:
            Calendar_Date: 1980
        Source_Currentness_Reference: publication date
      Source_Citation_Abbreviation: USGS
      Source_Contribution: Geologic contacts and ages.
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: National Imagery and Mapping Agency
          Publication_Date: 1997
          Title: VMAP_1V10-Vector map Level 0 (Digital chart of the World)
          Edition: 3
          Geospatial_Data_Presentation_Form: vector digital data
          Other_Citation_Details: Can be found on USGS DDS-62-A (POLBNDA.shp)
      Source_Scale_Denominator: 1,000,000
      Type_of_Source_Media: CD-ROM
      Source_Citation_Abbreviation: NIMA
      Source_Contribution: Used as a guide for georeferencing.
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: Department of Lands and Surveys, Nassau N P., Bahamas
          Publication_Date: unknown
          Title: Map of Commonwealth of The Bahamas
          Geospatial_Data_Presentation_Form: map
      Source_Scale_Denominator: 1,000,000
      Type_of_Source_Media: paper map
      Source_Contribution: Coastlines for Commonwealth of the Bahamas
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: P.G. Schruben, R.E. Arndt, W.J. Bawiec
          Publication_Date: 1994
          Title: Geologic Units of the Conterminous United States at 1:2,500,000 Scale -- A Digital Representation of the 1974 P.B. King and H.M. Beikman Map
          Geospatial_Data_Presentation_Form: vector digital data
          Series_Information:
            Series_Name: USGS Digital Data Series
            Issue_Identification: DDS-11
          Publication_Information:
            Publication_Place: Reston, VA
            Publisher: U.S. Geological Survey
          Online_Linkage: http://pubs.usgs.gov/dds/dds11/
      Source_Scale_Denominator: 2,500,000
      Type_of_Source_Media: online
      Source_Citation_Abbreviation: USGS
      Source_Contribution: Surface Geology for Florida
    Process_Step:
      Process_Description: USGS maps were scanned at 300 dpi resolution and RGB color setting.
      Source_Used_Citation_Abbreviation: USGS
      Process_Date: 200206
    Process_Step:
      Process_Description: USGS source maps merged in Adobe Photoshop 6.0.
      Source_Used_Citation_Abbreviation: USGS
      Process_Date: 200206
    Process_Step:
      Process_Description: Scanned source maps were registered using georeferencing tools in ArcGIS 8.3, and NIMA country boundary shapefile as a guide.
      Source_Used_Citation_Abbreviation: USGS
      Source_Used_Citation_Abbreviation: ESRI
      Process_Date: 200206
    Process_Step:
      Process_Description: Geologic contacts were digitized on screen as a personal geodatabase feature class using scanned and referenced image as a guide.
      Process_Date: 200206
    Process_Step:
      Process_Description: Geodatabase topology used to identify and modify gaps and overlaps in polygon feature class (> 1,000 errors corrected).
      Process_Date: 200301
    Process_Step:
      Process_Description: Geodatabase coded domains established to attribute feature class.  Codes and descriptions used original source map legend as a guide.  Some descriptions abbreviated.
      Process_Date: 200301
Spatial_Data_Organization_Information:
  Direct_Spatial_Reference_Method: Vector
  Point_and_Vector_Object_Information:
    SDTS_Terms_Description:
      SDTS_Point_and_Vector_Object_Type: G-polygon
      Point_and_Vector_Object_Count: 1931
Spatial_Reference_Information:
  Horizontal_Coordinate_System_Definition:
    Geographic:
      Latitude_Resolution: 0.000000
      Longitude_Resolution: 0.000000
      Geographic_Coordinate_Units: Decimal degrees
    Geodetic_Model:
      Horizontal_Datum_Name: D_WGS_1984
      Ellipsoid_Name: WGS_1984
      Semi-major_Axis: 6378137.000000
      Denominator_of_Flattening_Ratio: 298.257224
  Vertical_Coordinate_System_Definition:
    Altitude_System_Definition:
Entity_and_Attribute_Information:
  Detailed_Description:
    Entity_Type:
      Entity_Type_Label: Surface_Geology
      Entity_Type_Definition: Feature Class Attribute Table
      Entity_Type_Definition_Source: None
    Attribute:
      Attribute_Label: Id
      Attribute_Definition: Feature Identification Number
      Attribute_Definition_Source: User Defined
      Attribute_Domain_Values:
    Attribute:
      Attribute_Label: Age
      Attribute_Definition: Geologic Age Code
      Attribute_Definition_Source: User Defined
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: g
          Enumerated_Domain_Value_Definition: Gabbro and related rocks
          Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
        Enumerated_Domain:
          Enumerated_Domain_Value: i
          Enumerated_Domain_Value_Definition: Intrusive rocks, undivided, mostly intermediate to silicic
          Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
        Enumerated_Domain:
          Enumerated_Domain_Value: J
          Enumerated_Domain_Value_Definition: Jurassic marine and continental strata
          Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
        Enumerated_Domain:
          Enumerated_Domain_Value: JTr
          Enumerated_Domain_Value_Definition: Jurassic and Triassic marine and continental strata
          Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
        Enumerated_Domain:
          Enumerated_Domain_Value: K
          Enumerated_Domain_Value_Definition: Cretaceous marine strata
          Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
        Enumerated_Domain:
          Enumerated_Domain_Value: Ki
          Enumerated_Domain_Value_Definition: Cretaceous plutons, mostly intermediate to silicic
          Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
        Enumerated_Domain:
          Enumerated_Domain_Value: Kv
          Enumerated_Domain_Value_Definition: Cretaceous volcanic rocks
          Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
        Enumerated_Domain:
          Enumerated_Domain_Value: Kva
          Enumerated_Domain_Value_Definition: Cretaceous andesitic to silicic volcanic rocks
          Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
        Enumerated_Domain:
          Enumerated_Domain_Value: lT
          Enumerated_Domain_Value_Definition: Eocene and (or) Paleocene marine strata
          Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
        Enumerated_Domain:
          Enumerated_Domain_Value: Mz
          Enumerated_Domain_Value_Definition: Mesozoic sedimentary and volcanic rocks
          Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
        Enumerated_Domain:
          Enumerated_Domain_Value: Mzg
          Enumerated_Domain_Value_Definition: Mesozoic metavolcanic and associated metasedimentary rocks
          Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
        Enumerated_Domain:
          Enumerated_Domain_Value: Mzm
          Enumerated_Domain_Value_Definition: Mesozoic metasedimentary and metaigneous rocks, low to intermediate metamorphic grade
          Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
        Enumerated_Domain:
          Enumerated_Domain_Value: MzPzm
          Enumerated_Domain_Value_Definition: Mesozoic and Paleozoic metasedimentary and metaigneous rocks
          Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
        Enumerated_Domain:
          Enumerated_Domain_Value: Pz
          Enumerated_Domain_Value_Definition: Paleozoic strata
          Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
        Enumerated_Domain:
          Enumerated_Domain_Value: Pzi
          Enumerated_Domain_Value_Definition: Paleozoic plutons, mostly intermediate to silicic
          Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
        Enumerated_Domain:
          Enumerated_Domain_Value: Pzm
          Enumerated_Domain_Value_Definition: Paleozoic and Precambrian metamorphic rocks, undivided
          Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
        Enumerated_Domain:
          Enumerated_Domain_Value: Pzv
          Enumerated_Domain_Value_Definition: Paleozoic volcanic rocks
          Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
        Enumerated_Domain:
          Enumerated_Domain_Value: Q
          Enumerated_Domain_Value_Definition: Quaternary alluvium
          Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
        Enumerated_Domain:
          Enumerated_Domain_Value: QT
          Enumerated_Domain_Value_Definition: Quaternary and Tertiary marine limestone, sandstone, and shale
          Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
        Enumerated_Domain:
          Enumerated_Domain_Value: QTc
          Enumerated_Domain_Value_Definition: Quaternary and Tertiary continental deposits
          Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
        Enumerated_Domain:
          Enumerated_Domain_Value: Qv
          Enumerated_Domain_Value_Definition: Quaternary volcanic edifices, flows, and pyroclastic deposits
          Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
        Enumerated_Domain:
          Enumerated_Domain_Value: Qvi
          Enumerated_Domain_Value_Definition: Quaternary pumice fills and pyroclastic mantles
          Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
        Enumerated_Domain:
          Enumerated_Domain_Value: Tc
          Enumerated_Domain_Value_Definition: Tertiary continental strata
          Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
        Enumerated_Domain:
          Enumerated_Domain_Value: Ti
          Enumerated_Domain_Value_Definition: Tertiary plutons, mostly intermediate to silicic
          Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
        Enumerated_Domain:
          Enumerated_Domain_Value: TK
          Enumerated_Domain_Value_Definition: Tertiary and Cretaceous marine strata
          Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
        Enumerated_Domain:
          Enumerated_Domain_Value: TKc
          Enumerated_Domain_Value_Definition: Tertiary and Cretaceous continental strata
          Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
        Enumerated_Domain:
          Enumerated_Domain_Value: TKi
          Enumerated_Domain_Value_Definition: Tertiary and Cretaceous plutons, mostly intermediate to silicic
          Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
        Enumerated_Domain:
          Enumerated_Domain_Value: TKv
          Enumerated_Domain_Value_Definition: Tertiary and Cretaceous volcanic rocks
          Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
        Enumerated_Domain:
          Enumerated_Domain_Value: TKx
          Enumerated_Domain_Value_Definition: Tertiary and Cretaceous complex of deformed sedimentary rocks
          Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
        Enumerated_Domain:
          Enumerated_Domain_Value: Tv
          Enumerated_Domain_Value_Definition: Tertiary volcanic rocks
          Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
        Enumerated_Domain:
          Enumerated_Domain_Value: u
          Enumerated_Domain_Value_Definition: Ultramafic rocks
          Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
        Enumerated_Domain:
          Enumerated_Domain_Value: uK
          Enumerated_Domain_Value_Definition: Upper Cretaceous marine strata
          Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
        Enumerated_Domain:
          Enumerated_Domain_Value: Und
          Enumerated_Domain_Value_Definition: Undetermined
          Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
        Enumerated_Domain:
          Enumerated_Domain_Value: uT
          Enumerated_Domain_Value_Definition: Post-Eocene marine strata
          Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
        Enumerated_Domain:
          Enumerated_Domain_Value: W
          Enumerated_Domain_Value_Definition: Water
          Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
      Attribute_Value_Accuracy_Information:
        Attribute_Value_Accuracy_Explanation: From Source Maps
    Attribute:
      Attribute_Label: Description
      Attribute_Definition: Geologic Age Description
      Attribute_Definition_Source: User Defined
      Attribute_Domain_Values:
        Unrepresentable_Domain: see Age attributes for descriptions
      Attribute_Value_Accuracy_Information:
        Attribute_Value_Accuracy_Explanation: From Source Maps - Some Abbreviated - see Age attributes
    Attribute:
      Attribute_Label: Shape_Length
      Attribute_Definition: Length of feature in internal units.
      Attribute_Definition_Source: ESRI
      Attribute_Domain_Values:
        Unrepresentable_Domain: Positive real numbers that are automatically generated.
    Attribute:
      Attribute_Label: Shape_Area
      Attribute_Definition: Area of feature in internal units squared.
      Attribute_Definition_Source: ESRI
      Attribute_Domain_Values:
        Unrepresentable_Domain: Positive real numbers that are automatically generated.
  Overview_Description:
Distribution_Information:
  Distributor:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: USGS Information Services
      Contact_Address:
        Address_Type: mailing address
        Address: Box 25286 Denver Federal Center
        City: Denver
        State_or_Province: Colorado
        Postal_Code: 80225
        Country: USA
      Contact_Voice_Telephone: 1-888-ASK-USGS
      Contact_Facsimile_Telephone: 303.202.4693
      Contact_Electronic_Mail_Address: ask@usgs.gov
  Resource_Description: Downloadable Data
  Distribution_Liability:
    This publication was prepared by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, expressed or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed in this report, or represents that its use would not infringe privately owned rights. Reference therein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof.

    Although all data and software published on this CD-ROM are used by the U.S. Geological Survey, no warranty, expressed or implied, is made by the U.S. Geological Survey as to the accuracy of the data and related materials and (or) the functioning of the software. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the U.S. Geological Survey in the use of these data, software, or related materials.
  Standard_Order_Process:
    Digital_Form:
      Digital_Transfer_Information:
        Format_Name: Shapefile
        Format_Information_Content: Contains polygon features depicting geologic contacts of the Caribbean region.
        Transfer_Size: 1.81 MB
      Digital_Transfer_Option:
        Online_Option:
          Computer_Contact_Information:
            Network_Address:
              Network_Resource_Name: http://certmapper.cr.usgs.gov/data/we/ofr97470l/spatial/shape/geolcaribg.zip
    Digital_Form:
      Digital_Transfer_Information:
        Format_Name: ArcInfo Export File
        Format_Information_Content: Contains polygon features depicting geologic contacts of the Caribbean region.
        Transfer_Size: 4.4 MB
      Digital_Transfer_Option:
        Online_Option:
          Computer_Contact_Information:
            Network_Address:
              Network_Resource_Name: http://certmapper.cr.usgs.gov/data/we/ofr97470l/spatial/export/geolcaribge.zip
    Digital_Form:
      Digital_Transfer_Information:
        Format_Name: Image Map Service (WorldGulfofMexico)
        Format_Version_Number: 9
        Format_Specification: ArcIMS Image Map Service
        Format_Information_Content: A web-based interactive mapping system that accesses an ArcIMS Map Service running on certmapper.cr.usgs.gov.
      Digital_Transfer_Option:
        Online_Option:
          Computer_Contact_Information:
            Network_Address:
              Network_Resource_Name: http://certmapper.cr.usgs.gov/pubs/servlet/MapViewerBroker?project=world&Service=WorldGulfofMexico&OVMap=WorldGulfofMexico_overview
          Access_Instructions: This URL links to a web-based interactive mapping system that accesses an ArcIMS Image Map Service.  The map service can also be accessed using any custom client that adheres to the protocol specified through ArcXML.
    Digital_Form:
      Digital_Transfer_Information:
        Format_Name: ArcGIS Geodatabase File
        Format_Version_Number: 8.3
        Format_Information_Content: Contains polygon features depicting geologic contacts of the Gulf of Mexico, in addition to other geology-related features.
        Transfer_Size: 17.9 MB
      Digital_Transfer_Option:
        Online_Option:
          Computer_Contact_Information:
            Network_Address:
              Network_Resource_Name: http://certmapper.cr.usgs.gov/data/we/ofr97470l/spatial/geodatabase/gulfofmexico.zip
    Fees: None
    Ordering_Instructions: This product can be downloaded individually using any one of the digit form, network resource name URLs above. Each of these URLs  may provide access to various formats of the same product.  To order the larger work such as the entire CD-ROM the dataset was published on, please use the contact information provided above.
Metadata_Reference_Information:
  Metadata_Date: 20050817
  Metadata_Review_Date: 20050824
  Metadata_Contact:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: U.S. Geological Survey, Central Energy Resources Team
        Contact_Person: Christopher D. French
      Contact_Position: GIS Specialist
      Contact_Address:
        Address_Type: mailing address
        Address: U.S. Geological Survey, Box 25046, MS 939, Denver Federal Center
        City: Denver
        State_or_Province: Colorado
        Postal_Code: 80225
        Country: USA
      Contact_Voice_Telephone: 303-236-1655
      Contact_Electronic_Mail_Address: datamgt@usgs.gov
      Contact_Instructions: For inquiries regarding this document, please include the metadata contact person's name, dataset name, and publication series and number.
  Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
  Metadata_Standard_Version: FGDC-STD-001-1998