Identification_Information: Citation: Citation_Information: Originator: Connie L. Dicken Originator: Suzanne W. Nicholson Originator: John D. Horton Originator: Scott A. Kinney Originator: Gregory Gunther Originator: Michael P. Foose Originator: Julia A.L. Mueller Publication_Date: 2005 Title: Integrated Geologic Map Databases for the United States: Delaware, Maryland, New York, Pennsylvania, and Virginia Edition: version 1.0 Geospatial_Data_Presentation_Form: map Series_Information: Series_Name: U.S. Geological Survey Open-File Report Issue_Identification: 2005-1325 Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Online_Linkage: http://pubs.usgs.gov/of/2005/1325 Description: Abstract: This report presents the results of the USGS Mineral Resources Program activity to compile a national-scale geologic map database at a nominal scale of 1:500,000, to support national and regional level projects, including mineral resource and geoenvironmental assessments. The only comprehensive sources for input into regional- and national-scale geologic maps are state geologic maps with scales ranging from 1:100,000 to 1:1,000,000. Digital versions of these state maps form the core of what is presented here. Because no adequate geologic map exists for the state of Alaska, it is being compiled as regional blocks of 3 degree quadrangles that also form part of this national database. It is expected that this series will completed by approximately the end of 2007. These maps and databases are being released in blocks of states or, in the case of Alaska, as compiled blocks of 1:250,000-scale quadrangles as chapters in this series. For Alaska, formal maps as well as databases are being published here, whereas for the conterminous U.S. only state databases are presented, because published maps for most states already exist. For Alaska these regional compilations will form the base for compiling a new geologic map of the state. As documented in CONUS documentation, standards for the conterminous U.S. are somewhat different than those for Alaska and Hawaii. Purpose: A primary goal of this work is to develop geologic map datasets with standardized structure and attribution. The database design and standards are documented in CONUS documentation of this report. The intent is that contiguous databases can be merged seamlessly and without any additional effort. In addition to a common database structure, the conterminous U.S. state databases (the contiguous 48 states) have been fitted to a set of standard state boundaries derived from the USGS Digial Line Graph 1:100,000 quadrangle boundaries (Johnson and Leveritch, 1998) so that, when states are merged, they match without slivers or overlap. No attempt has been made to reconcile differences in mapping across state boundaries. Supplemental_Information: This database consists of five major Arc/Info GIS datasets for each state; - one: geologic map with formations, - two: faults (where present), - three: dikes (where present), - four: miscellaneous line features (where present), - five: miscellaneous point features (where present). 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: -75.788933 (decimal degrees) East_Bounding_Coordinate: -74.878708 (decimal degrees) North_Bounding_Coordinate: 39.839458 (decimal degrees) South_Bounding_Coordinate: 38.450516 (decimal degrees) Keywords: Theme: Theme_Keyword_Thesaurus: none Theme_Keyword: geology Place: Place_Keyword_Thesaurus: none Place_Keyword: USA Place_Keyword: Delaware Theme: Theme_Keyword_Thesaurus: National Geologic Map Database Catalog themes, augmented Theme_Keyword: 3100 - Vector Theme_Keyword: 3110 - ESRI Theme_Keyword: 3112 - export Theme_Keyword: 1100 - Geology Theme_Keyword: 1101 - General Place: Place_Keyword_Thesaurus: Augmented FIPS 10-4 and FIPS 6-4, version 1.0 Place_Keyword: US10 = Delaware Access_Constraints: none Use_Constraints: This database is not meant to be used or displayed at any scale other than 1:500,000. Any hardcopies utilizing these data sets shall clearly indicate their source. If the licensee has modified the data in any way they are obligated to describe the types of modifications they have performed on the hardcopy map. Licensee specifically agrees not to misrepresent these data sets, nor to imply that changes they made were approved by the U.S. Geological Survey. Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Suzanne W. Nicholson Contact_Organization: U.S. Geological Survey Contact_Address: Address_Type: mailing and physical address Address: 12201 Sunrise Valley Dr. MS954 City: Reston State_or_Province: VA Postal_Code: 20192 Country: USA Contact_Voice_Telephone: 703-648-6344 Contact_Electronic_Mail_Address: swnich@usgs.gov Data_Set_Credit: State Geologic Map Compilation (SGMC) activity of the National Surveys and Analysis projects of the US Geological Survey Mineral Resources Program. Native_Data_Set_Environment: ARC/INFO version 8.3 and 9.0 ArcView 3.2 Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: The values of the attributes ROCKTYPE1 and ROCKTYPE2 were assigned based on the information in the legends of the source maps (most of which are paper). The definitions of these values are described in the draft document Geologic Map Classification version 6.1 (Johnson and others); available at the following website: http://www.nadm-geo.org/dmdt/index.html Logical_Consistency_Report: All internal polygons were checked for closure with vendor software and on hard copy plots. Overshoots and undershoots have been deleted or corrected as appropriate. Completeness_Report: Bodies of water are classified as water, and the geologic units underlying them are not included in this coverage. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Accuracy of Delaware state boundary and those arcs intersecting it: The accuracy of the state boundary arcs is based on the 1:100,000 scale original data used to produce this boundary. (Johnson, Bruce R. and Leveritch, Beth, 1998, 1:100,000 Scale State Boundaries of the Conterminous United States: U.S. Geological Survey, unpublished). Those internal arcs intersecting the state boundary were extended or shortened as needed to complete polygons, possibly creating a small amount of error. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: Spoljaric, Nenad Originator: Jordan, Robert R Publication_Date: 1966 Title: Generalized Geologic Map of Delaware Geospatial_Data_Presentation_Form: map Publication_Information: Publication_Place: Delaware Publisher: Delaware Geological Survey Online_Linkage: none Source_Scale_Denominator: 300,000 Type_of_Source_Media: vector Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1966 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: de geology Source_Contribution: provided geology for state map Source_Information: Source_Citation: Citation_Information: Originator: Bruce R. Johnson Publication_Date: unpublished Title: 1:100,000 Scale State Boundaries of the Conterminous United States Geospatial_Data_Presentation_Form: vector data Other_Citation_Details: Arc/INFO coverage developed by Bruce Johnson. Derived from USGS 100,000-scale DLG boundary layer quadrangles. Source_Scale_Denominator: 100,000 Type_of_Source_Media: online Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1998 Source_Currentness_Reference: unknown Source_Citation_Abbreviation: state boundaries Source_Contribution: provided linework of the conterminous state boundaries Source_Information: Source_Citation: Citation_Information: Originator: Bruce R. Johnson Publication_Date: unpublished Title: Geologic Map Unit Classification, ver. 6.1 Geospatial_Data_Presentation_Form: unknown Other_Citation_Details: Document has been modified and is included in Appedices of the publication. Source_Scale_Denominator: none Type_of_Source_Media: online; http:/geology.usgs.gov/dm Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1998 Source_Currentness_Reference: unknown Source_Citation_Abbreviation: lithclass Source_Contribution: Source of lithologic codes and specific rock names found in ROCKTYPE1 and ROCKTYPE2. Process_Step: Process_Description: The purpose of this standardization is to allow all covers to be seamlessly joined without any additional effort to form regional or national level digital maps. Note that for Alaska, the state is being compiled as blocks of 1:250k quadrangles that will ultimately be used to compile a new state map. Douglas Stoeser and Ric Wilson are co-coordinators for the overall State Geologic Map Compilation (SGMC) effort, with Stoeser coordinating work on the mainland states and Wilson coordinating work for Alaska and Hawaii. Process_Date: 2003 - 2005 Process_Step: Process_Description: C.L. Dicken obtained the digital geologic map of Delaware from Julia Mueller. The coverage was re-projected into the following: projection: Lambert Conformal Conic units: meters datum: NAD27 standard parallel 1: 33 0 0.000 standard parallel 2: 45 0 0.000 central meridian: -100 0 0.000 reference latitude: 0 0 0.000 false easting: 0.00000 false northing: 0.00000 (Note: Attributes associated with the generation of the coverages were not deleted. PAT - shape, area, perimeter, coverage#, and coverage-id AAT - shape, fnode#, tnode#, lnode#, rnode#, length, coverage#, and coverage-id) All attributes were deleted except map_code. The values from map_code where then calculated into a new field called orig_label. Process_Date: 2005 Process_Step: Process_Description: The relevant state outline (arcs) was removed from the coverage and replaced with the arcs from the 1:100,000 Scale State Boundaries of the Conterminous United States. This allows for a seamless fit of each state to a standard state boundary base. Process_Date: 2005 Process_Step: Process_Description: The following attributes were exported from Filemaker as a .dbf: orig_label, map_symbol2, unit_link, reference_id, unit_age, rocktype1, and rocktype2. orig_label reflects the original map symbol used on the source map map_symbol2 reflects map-symbol1 with the addition of a province number (renamed sgmc_label in PAT) unit_link is an auto generated field based on map-symbol2 and the state abbreviation (e.g. IN001) that produces a unique identifier for each map unit reference_id was populated with an alphanumeric code (e.g. US001) that designates the source used for the linework and other references used to describe the age or lithologies of the unit. (renamed source in PAT). unit_age was populated with general age assignment rocktype1 records dominant lithology (must be >50% of unit), using standardized data dictionary rocktype2 records second most dominant lithology, using standardized data dictionary The attributes were then converted using the following structure: item name: orig_label width: 12 output: 12 type: c item name: sgmc_label width: 16 output: 16 type: c item name: unit_link width: 18 output: 18 type: c item name: source width: 6 output: 8 type: c item name: unit_age width: 60 output: 60 type: c item name: rocktype1 width: 40 output: 40 type: c item name: rocktype2 width: 40 output: 40 type: c Process_Date: 2005 Process_Step: Process_Description: Once the .dbf was in the correct format with standardized column widths and data structure, it was converted into a lookup table (.lut) in Arc/Info. Then a joinitem was performed to join the look-up table to the polygon attribute table. orig_label was used as the merge item. Process_Date: 2005 Process_Step: Process_Description: Next, in preparing the uniform .aat file, the following items were added to the table: item name: arc-code width: 3 output: 3 type: i item name: arc-para1 width: 3 output: 3 type: i item name: arc-para2 width: 3 output: 3 type: i item name: source width: 6 output: 8 type: c Process_Date: 2005 Process_Step: Process_Description: Arc-code was populated using the paper map source to tag the lines using the AAT line type data dictionary (see CONUS documentation in this series). Arc-para1 was populated when additional information was available such as identifying the upthrown side of a fault or direction of thrusting on a fault. (see CONUS documentation) Arc-para2 is a scratch field that is used mostly in Alaska. Source was populated with an alphanumeric code (e.g. US001) that designates the source used for the linework. Process_Date: 2005 Process_Step: Process_Description: Once the .aat and the .pat were populated with the correct attributes, the coverage was exported as an .e00 file (DEgeol_lcc.e00). Then it was unprojected into geographic coordinates and exported again (DEgeol_dd.e00). Process_Date: 2005 Process_Step: Process_Description: Finally, the geology lines and geology polygons were converted into shapefiles; in both geographic coordinates and in Lambert Conformal Conic projection. Process_Date: 2005 Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Vector Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Map_Projection: Map_Projection_Name: Lambert Conformal Conic Lambert_Conformal_Conic: Standard_Parallel: 33 Standard_Parallel: 45 Longitude_of_Central_Meridian: -100.0 Latitude_of_Projection_Origin: 0 False_Easting: 0.00000 False_Northing: 0.00000 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 0.01 Ordinate_Resolution: 0.01 Planar_Distance_Units: Meters Geodetic_Model: Horizontal_Datum_Name: North American Datum of 1927 Ellipsoid_Name: Clarke 1866 Semi-major_Axis: 6378206.4 Denominator_of_Flattening_Ratio: 294.98 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: DE_geol.pat Entity_Type_Definition: Polygon attribute table for the Delaware geologic coverage. Entity_Type_Definition_Source: ESRI Attribute: Attribute_Label: ORIG_LABEL Attribute_Definition: unmodified map unit symbol from source cover. type: character width: 12 output width: 12 Attribute_Definition_Source: Doug Stoeser Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: amp Enumerated_Domain_Value_Definition: Amphibolite Enumerated_Domain: Enumerated_Domain_Value: bgd Enumerated_Domain_Value_Definition: Banded Gneiss Enumerated_Domain: Enumerated_Domain_Value: bm Enumerated_Domain_Value_Definition: Bryn Mawr Formation Enumerated_Domain: Enumerated_Domain_Value: c Enumerated_Domain_Value_Definition: Cockeysville Marble Enumerated_Domain: Enumerated_Domain_Value: gb Enumerated_Domain_Value_Definition: Gabbro Enumerated_Domain: Enumerated_Domain_Value: grd Enumerated_Domain_Value_Definition: Port Deposit Granodiorite Enumerated_Domain: Enumerated_Domain_Value: grn Enumerated_Domain_Value_Definition: Arden Granite Enumerated_Domain: Enumerated_Domain_Value: Km Enumerated_Domain_Value_Definition: Magothy Formation Enumerated_Domain: Enumerated_Domain_Value: Kmlns Enumerated_Domain_Value_Definition: Mt. Laurel-Navesink Formation Enumerated_Domain: Enumerated_Domain_Value: Kmv Enumerated_Domain_Value_Definition: Merchantville Formation Enumerated_Domain: Enumerated_Domain_Value: Kp Enumerated_Domain_Value_Definition: Potomac Formation Enumerated_Domain: Enumerated_Domain_Value: Krb Enumerated_Domain_Value_Definition: Redbank Formation Enumerated_Domain: Enumerated_Domain_Value: Kw Enumerated_Domain_Value_Definition: Wenonah Formation Enumerated_Domain: Enumerated_Domain_Value: pt Enumerated_Domain_Value_Definition: Pegmatite Enumerated_Domain: Enumerated_Domain_Value: sp Enumerated_Domain_Value_Definition: Serpentine Enumerated_Domain: Enumerated_Domain_Value: Tb Enumerated_Domain_Value_Definition: Unit B Enumerated_Domain: Enumerated_Domain_Value: Tc Enumerated_Domain_Value_Definition: Unit C Enumerated_Domain: Enumerated_Domain_Value: Tch Enumerated_Domain_Value_Definition: Chesapeake Group Enumerated_Domain: Enumerated_Domain_Value: Tr Enumerated_Domain_Value_Definition: Rancocas Formation Enumerated_Domain: Enumerated_Domain_Value: Water Enumerated_Domain_Value_Definition: water Enumerated_Domain: Enumerated_Domain_Value: ws Enumerated_Domain_Value_Definition: Wissahickon Schist Attribute: Attribute_Label: SGMC_LABEL Attribute_Definition: orig_label + ;n where n= province number (n=0 if no province number) type: character width: 16 output width: 16 Attribute_Definition_Source: Doug Stoeser Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: amp;0 Enumerated_Domain_Value_Definition: Amphibolite Enumerated_Domain: Enumerated_Domain_Value: bgd;0 Enumerated_Domain_Value_Definition: Banded Gneiss Enumerated_Domain: Enumerated_Domain_Value: bm;0 Enumerated_Domain_Value_Definition: Bryn Mawr Formation Enumerated_Domain: Enumerated_Domain_Value: c;0 Enumerated_Domain_Value_Definition: Cockeysville Marble Enumerated_Domain: Enumerated_Domain_Value: gb;0 Enumerated_Domain_Value_Definition: Gabbro Enumerated_Domain: Enumerated_Domain_Value: grd;0 Enumerated_Domain_Value_Definition: Port Deposit Granodiorite Enumerated_Domain: Enumerated_Domain_Value: grn;0 Enumerated_Domain_Value_Definition: Arden Granite Enumerated_Domain: Enumerated_Domain_Value: Km;0 Enumerated_Domain_Value_Definition: Magothy Formation Enumerated_Domain: Enumerated_Domain_Value: Kmlns;0 Enumerated_Domain_Value_Definition: Mt. Laurel-Navesink Formation Enumerated_Domain: Enumerated_Domain_Value: Kmv;0 Enumerated_Domain_Value_Definition: Merchantville Formation Enumerated_Domain: Enumerated_Domain_Value: Kp;0 Enumerated_Domain_Value_Definition: Potomac Formation Enumerated_Domain: Enumerated_Domain_Value: Krb;0 Enumerated_Domain_Value_Definition: Redbank Formation Enumerated_Domain: Enumerated_Domain_Value: Kw;0 Enumerated_Domain_Value_Definition: Wenonah Formation Enumerated_Domain: Enumerated_Domain_Value: pt;0 Enumerated_Domain_Value_Definition: Pegmatite Enumerated_Domain: Enumerated_Domain_Value: sp;0 Enumerated_Domain_Value_Definition: Serpentine Enumerated_Domain: Enumerated_Domain_Value: Tb;0 Enumerated_Domain_Value_Definition: Unit B Enumerated_Domain: Enumerated_Domain_Value: Tc;0 Enumerated_Domain_Value_Definition: Unit C Enumerated_Domain: Enumerated_Domain_Value: Tch;0 Enumerated_Domain_Value_Definition: Chesapeake Group Enumerated_Domain: Enumerated_Domain_Value: Tr;0 Enumerated_Domain_Value_Definition: Rancocas Formation Enumerated_Domain: Enumerated_Domain_Value: water;0 Enumerated_Domain_Value_Definition: water Enumerated_Domain: Enumerated_Domain_Value: ws;0 Enumerated_Domain_Value_Definition: Wissahickon Schist Attribute: Attribute_Label: unit_link Attribute_Definition: composite map label = ST + sgmc_label This creates a unique identifier for every unit in the CONUS (continental United States) covers. type: character width: 18 output width: 18 Attribute_Definition_Source: Doug Stoeser Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: DEamp;0 Enumerated_Domain_Value_Definition: Amphibolite Enumerated_Domain: Enumerated_Domain_Value: DEbgd;0 Enumerated_Domain_Value_Definition: Banded Gneiss Enumerated_Domain: Enumerated_Domain_Value: DEbm;0 Enumerated_Domain_Value_Definition: Bryn Mawr Formation Enumerated_Domain: Enumerated_Domain_Value: DEc;0 Enumerated_Domain_Value_Definition: Cockeysville Marble Enumerated_Domain: Enumerated_Domain_Value: DEgb;0 Enumerated_Domain_Value_Definition: Gabbro Enumerated_Domain: Enumerated_Domain_Value: DEgrd;0 Enumerated_Domain_Value_Definition: Port Deposit Granodiorite Enumerated_Domain: Enumerated_Domain_Value: DEgrn;0 Enumerated_Domain_Value_Definition: Arden Granite Enumerated_Domain: Enumerated_Domain_Value: DEKm;0 Enumerated_Domain_Value_Definition: Magothy Formation Enumerated_Domain: Enumerated_Domain_Value: DEKmlns;0 Enumerated_Domain_Value_Definition: Mt. Laurel-Navesink Formation Enumerated_Domain: Enumerated_Domain_Value: DEKmv;0 Enumerated_Domain_Value_Definition: Merchantville Formation Enumerated_Domain: Enumerated_Domain_Value: DEKp;0 Enumerated_Domain_Value_Definition: Potomac Formation Enumerated_Domain: Enumerated_Domain_Value: DEKrb;0 Enumerated_Domain_Value_Definition: Redbank Formation Enumerated_Domain: Enumerated_Domain_Value: DEKw;0 Enumerated_Domain_Value_Definition: Wenonah Formation Enumerated_Domain: Enumerated_Domain_Value: DEpt;0 Enumerated_Domain_Value_Definition: Pegmatite Enumerated_Domain: Enumerated_Domain_Value: DEsp;0 Enumerated_Domain_Value_Definition: Serpentine Enumerated_Domain: Enumerated_Domain_Value: DETb;0 Enumerated_Domain_Value_Definition: Unit B Enumerated_Domain: Enumerated_Domain_Value: DETc;0 Enumerated_Domain_Value_Definition: Unit C Enumerated_Domain: Enumerated_Domain_Value: DETch;0 Enumerated_Domain_Value_Definition: Chesapeake Group Enumerated_Domain: Enumerated_Domain_Value: DETr;0 Enumerated_Domain_Value_Definition: Rancocas Formation Enumerated_Domain: Enumerated_Domain_Value: DEwater;0 Enumerated_Domain_Value_Definition: water Enumerated_Domain: Enumerated_Domain_Value: DEws;0 Enumerated_Domain_Value_Definition: Wissahickon Schist Attribute: Attribute_Label: source Attribute_Definition: An alphanumeric code (e.g. US001) that designates the source material used. type: character width: 6 output width: 8 Attribute_Definition_Source: Doug Stoeser Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: DE001 Enumerated_Domain_Value_Definition: Spoljaric, Nenad and Jordan, Robert R., 1966, Generalized Geologic Map of Delaware, State of Delaware, Delaware Geological Survey, scale ca. 1:300,000. Attribute: Attribute_Label: unit_age Attribute_Definition: geologic age from the source map used. type: character width: 60 output width: 60 Attribute_Definition_Source: Doug Stoeser Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Cretaceous Enumerated_Domain_Value: Cretaceous-Tertiary Enumerated_Domain_Value: Paleozoic Enumerated_Domain_Value: Tertiary Enumerated_Domain_Value: age undetermined Attribute: Attribute_Label: rocktype1 Attribute_Definition: The predominant lithology found in the formation. type: character width: 40 output width: 40 Attribute_Definition_Source: Johnson Lith Class 6.1a Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: amphibolite Enumerated_Domain_Value: gabbro Enumerated_Domain_Value: gneiss Enumerated_Domain_Value: granite Enumerated_Domain_Value: granodiorite Enumerated_Domain_Value: limestone Enumerated_Domain_Value: mica schist Enumerated_Domain_Value: pegmatite Enumerated_Domain_Value: sand Enumerated_Domain_Value: serpentinite Enumerated_Domain_Value: silt Enumerated_Domain_Value: water Attribute: Attribute_Label: rocktype2 Attribute_Definition: The second most predominant lithology in the formation. type: character width: 40 output width: 40 Attribute_Definition_Source: Johnson Lith Class 6.1 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: clay or mud Enumerated_Domain_Value: dolostone (dolomite) Enumerated_Domain_Value: gneiss Enumerated_Domain_Value: sand Enumerated_Domain_Value: silt Detailed_Description: Entity_Type: Entity_Type_Label: de_geol.aat Entity_Type_Definition: Arc attribute table for Delaware geologic coverage. Entity_Type_Definition_Source: ESRI Attribute: Attribute_Label: arc-code Attribute_Definition: Unique identifier for the line feature type: integer width: 3 output width: 3 Attribute_Definition_Source: AAT data dictionary Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 1 Enumerated_Domain_Value_Definition: contact, location certain Enumerated_Domain: Enumerated_Domain_Value: 7 Enumerated_Domain_Value_Definition: shoreline or riverbank Enumerated_Domain: Enumerated_Domain_Value: 124 Enumerated_Domain_Value_Definition: state boundary Attribute: Attribute_Label: arc-para1 Attribute_Definition: Used for "decorated" lines where additional information is needed. type: integer width: 3 output width: 3 Attribute_Definition_Source: AAT data dictionary Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 0 Enumerated_Domain_Value_Definition: no additional information Attribute: Attribute_Label: arc-para2 Attribute_Definition: "Scratch" field used mostly in Alaska. type: integer width: 3 output width: 3 Attribute_Definition_Source: AAT data dictionary Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 0 Enumerated_Domain_Value_Definition: no additional information Attribute: Attribute_Label: source Attribute_Definition: An alphanumeric code (e.g. US001) that designates the source material used. type: character width: 6 output width: 8 Attribute_Definition_Source: Doug Stoeser Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: DE001 Enumerated_Domain_Value_Definition: Spoljaric, Nenad and Jordan, Robert R., 1966, Generalized Geologic Map of Delaware, State of Delaware, Delaware Geological Survey, scale ca. 1:300,000. Enumerated_Domain: Enumerated_Domain_Value: US001 Enumerated_Domain_Value_Definition: Johnson, Bruce R. and Leveritch, Beth, 1998, 1:100,000 Scale State Boundaries of the Conterminous United States: U.S. Geological Survey, unpublished (see metadata file: st100kmeta.txt, Chapter A) Overview_Description: Entity_and_Attribute_Overview: Coding for polygon attributes: NAME: FEATURE: orig_label unmodified map unit symbols from source cover sgmc_label orig_label modified for standard geologic age symbols and an integer code added for province unit_link sgmc_label and a state code identifier source reference to source of data unit_age geologic age rocktype1 predominant lithology rocktype2 second most predominant lithology Coding for arc attributes: NAME: FEATURE: arc-code unique integer identifier arc-para1 used where additional information is needed arc-para2 scratch field source reference to source of data Coding for point attributes: NAME: FEATURE: point_feature name of feature on map source reference to source of data Coding for dikes (special arcs) attributes: NAME: FEATURE: orig_label unmodified map unit symbols from source cover sgmc_label orig_label modified for standard geologic age symbols and an integer code added for province arc-code unique integer identifier dike_lith general lithology dike_age geologic age source reference to source of data Entity_and_Attribute_Detail_Citation: ESRI Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Information Services Reston-ESIC Contact_Address: Address_Type: mailing and physical address Address: U.S. Geological Survey 507 National Center City: Reston State_or_Province: Virginia Postal_Code: 20192 Country: USA Contact_Voice_Telephone: 1-888-ASK-USGS or 1-703-648-5953 Contact_Electronic_Mail_Address: http://www.usgs.gov/contact/ Distribution_Liability: Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the USGS. Although these data have been used by the USGS and have been successfully imported into data base programs, no warranty, expressed or implied, is made by the USGS as to how successfully or accurately the data can be imported into any specific application software running on any specific hardware platform. The fact of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in connection therewith. This data base GIS is not meant to be used or displayed at any scale other than 1:500,000. Resource_Description: Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: ARC/INFO export Format_Version_Number: 9.0 Format_Information_Content: Geologic units and structural features File_Decompression_Technique: gzip and tar Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://pubs.usgs.gov/ Fees: none Metadata_Reference_Information: Metadata_Date: 20050909 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Connie L. Dicken Contact_Address: Address_Type: mailing and physical address Address: 12201 Sunrise Valley Dr. MS954 City: Reston State_or_Province: VA Postal_Code: 20192 Country: USA Contact_Voice_Telephone: 703-648-6482 Contact_Electronic_Mail_Address: cdicken@usgs.gov Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata ("CSDGM version 2") Metadata_Standard_Version: FGDC-STD-001-1998