Identification_Information:

  Citation:

    Citation_Information:

      Originator: Suzanne W. Nicholson

      Originator: Connie L. Dicken

      Originator: John D. Horton

      Originator: Michael P. Foose

      Originator: Julia A.L. Mueller

      Originator: Rudi Hon

      Publication_Date: 2006

      Title: Preliminary Integrated Geologic Map Databases for the United States:  Connecticut, Maine, Massachusetts, New Hampshire, New Jersey, Rhode Island, Vermont

      Edition: version 1.0

      Geospatial_Data_Presentation_Form: map

      Series_Information:

        Series_Name: U.S. Geological Survey Open-File Report

        Issue_Identification: 2006-1272

 

      Publication_Information:

        Publication_Place: Reston, VA

        Publisher: U.S. Geological Survey

      Online_Linkage: http://pubs.usgs.gov/of/2006/1272

  Description:

    Abstract: These metadata are specifically for the State of Rhode Island, one state in the national compilation of state geologic map databases.  The digital geologic state map data was prepared by the Rhode Island Geological Survey in 1994.  Subsequent editing of the spatial data by the USGS was limited to fitting a standardized state boundary to the data, standardizing the arc coding, reprojecting the data, and minor edits of arc or polygon attributes to conform with the paper map.

This open-file report is one of several that present the preliminary results of the USGS Mineral Resources Program activity to compile a national-scale geologic map database to support national and regional level projects, including mineral resource and geoenvironmental assessments. The only comprehensive sources of 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 in regional blocks 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 and preview graphics 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 CONUSdocumentationNENJ.pdf, 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 CONUSdocumentationNENJ.pdf of this series.  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 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 up to 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: 2006

    Currentness_Reference: publication date

 

  Status:

    Progress: Complete

    Maintenance_and_Update_Frequency: none planned

 

  Spatial_Domain:

    Bounding_Coordinates:

      West_Bounding_Coordinate: -71.907675

      East_Bounding_Coordinate: -71.099608

 

      North_Bounding_Coordinate: 42.018398

      South_Bounding_Coordinate: 41.063767

 

  Keywords:

    Theme:

      Theme_Keyword_Thesaurus: none

      Theme_Keyword: geology

    Place:

      Place_Keyword_Thesaurus: none

      Place_Keyword: USA

      Place_Keyword: Rhode Island

 

    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: US44 = Rhode Island

  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 9.1

    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://geology.usgs.gov/dm

  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 Rhode Island 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 (see metadata file: st100kmeta.txt, CONUSdocumentationNENJ.pdf))

 

        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: Hermes, O.D

          Originator: Gromet, L.P.

          Originator: Murray, D.P.

          Originator: Hamidzada, N.A.

          Publication_Date: 1994

          Title: Geologic Map of Rhode Island

          Geospatial_Data_Presentation_Form: digital map

          Publication_Information:

            Publication_Place: Providence, Rhode Island

            Publisher: Rhode Island Geographic Information System

          Online_Linkage: http://www.edc.uri.edu/rigis-spf/form.html

      Source_Scale_Denominator: 100,000

      Type_of_Source_Media: vector

      Source_Time_Period_of_Content:

        Time_Period_Information:

          Single_Date/Time:

            Calendar_Date: 1994

        Source_Currentness_Reference: publication date

      Source_Citation_Abbreviation: rigeol

      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 SGMC 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 (USGS) and Ric Wilson (USGS) are co-coordinators for the overall SGMC effort, with Stoeser coordinating work on the mainland states and Wilson coordinating work for Alaska and Hawaii.

      Process_Date: 2003 - 2006

    Process_Step:

      Process_Description:

        C.L. Dicken obtained the digital geologic map of Rhode Island from   Rhode Island Geographic Information System, http://www.edc.uri.edu/rigis-spf/Statewide/state.html#geology.     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 unit_label.

        The values from unit_label where then calculated into a new field called orig_label.

      Process_Date: 2006

    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: 2006

    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

 

        unit_link  is an auto generated field based on map-symbol2 and the state abbreviation (e.g. RI001) 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.

 

        unit_age  was populated with general age assignment

 

        rocktype1  records dominant lithology (does not imply minimum percentage of abundance), 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: 2006

    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: 2006

    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: 2006

    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 CONUSdocumentationNENJ.pdf 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 CONUSdocumentationNENJ.pdf)

 

        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: 2006

    Process_Step:

      Process_Description:

        Once the .aat and the .pat were populated with the correct attributes, the coverage was exported as an .e00 file (RIgeol_lcc.e00).

 

        Then it was unprojected into geographic coordinates and exported again (RIgeol_dd.e00).

      Process_Date: 2006

    Process_Step:

      Process_Description: Faults were extracted from the coverage and created a separate fault coverage (RIfaults_lcc) and then exported (RIfaults_lcc.e00).

      Process_Date: 2006

    Process_Step:

      Process_Description: Finally, the geology lines, geology polygons and faults were converted into shapefiles; in both geographic coordinates and in Lambert Conformal Conic projection.

      Process_Date: 2006

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: RI_geol.pat

      Entity_Type_Definition: Polygon attribute table for the Rhode Island 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 (USGS)

      Attribute_Domain_Values:

        Enumerated_Domain:

          Enumerated_Domain_Value: Ch

          Enumerated_Domain_Value_Definition: Hoppin Formation

        Enumerated_Domain:

          Enumerated_Domain_Value: Cpc+OCcj

          Enumerated_Domain_Value_Definition: Pirate Cove Formation

        Enumerated_Domain:

          Enumerated_Domain_Value: Dsa

          Enumerated_Domain_Value_Definition: Scituate Igneous Suite - alkali-feldspar granite

        Enumerated_Domain:

          Enumerated_Domain_Value: Dsd

          Enumerated_Domain_Value_Definition: Scituate Igneous Suite - diorite/gabbro

        Enumerated_Domain:

          Enumerated_Domain_Value: Dsfg

          Enumerated_Domain_Value_Definition: Scituate Igneous Suite - fine-grained granite

        Enumerated_Domain:

          Enumerated_Domain_Value: Dsg

          Enumerated_Domain_Value_Definition: Scituate Igneous Suite - granite

        Enumerated_Domain:

          Enumerated_Domain_Value: Dsgd

          Enumerated_Domain_Value_Definition: Scituate Igneous Suite - granodiorite

        Enumerated_Domain:

          Enumerated_Domain_Value: Dsm

          Enumerated_Domain_Value_Definition: Scituate Igneous Suite - monzonite/monzodiorite

        Enumerated_Domain:

          Enumerated_Domain_Value: Dsr

          Enumerated_Domain_Value_Definition: Scituate Igneous Suite - rhyolite

        Enumerated_Domain:

          Enumerated_Domain_Value: Dsv

          Enumerated_Domain_Value_Definition: Scituate Igneous Suite - volcaniclastic rock

        Enumerated_Domain:

          Enumerated_Domain_Value: DZc

          Enumerated_Domain_Value_Definition: cumberlandite

        Enumerated_Domain:

          Enumerated_Domain_Value: DZgd

          Enumerated_Domain_Value_Definition: gabbro/diorite

        Enumerated_Domain:

          Enumerated_Domain_Value: Jm

          Enumerated_Domain_Value_Definition: monchiquite

        Enumerated_Domain:

          Enumerated_Domain_Value: Kr

          Enumerated_Domain_Value_Definition: Raritan Formation

        Enumerated_Domain:

          Enumerated_Domain_Value: MDca

          Enumerated_Domain_Value_Definition: alkali-feldspar granite of Cumberland

        Enumerated_Domain:

          Enumerated_Domain_Value: OCcdi

          Enumerated_Domain_Value_Definition: Conanicut Group - Dutch Island Harbor Formation

        Enumerated_Domain:

          Enumerated_Domain_Value: OCcep

          Enumerated_Domain_Value_Definition: Conanicut Group - East Passage Formation

        Enumerated_Domain:

          Enumerated_Domain_Value: OCcj+OCcfb

          Enumerated_Domain_Value_Definition: Conanicut Group - Fort Burnside Formation

        Enumerated_Domain:

          Enumerated_Domain_Value: OCcj

          Enumerated_Domain_Value_Definition: Conanicut Group - Jamestown Formation

        Enumerated_Domain:

          Enumerated_Domain_Value: OCcu

          Enumerated_Domain_Value_Definition: Conanicut Group - undifferentiated rock

        Enumerated_Domain:

          Enumerated_Domain_Value: OCmn

          Enumerated_Domain_Value_Definition: minette

        Enumerated_Domain:

          Enumerated_Domain_Value: Pnbd

          Enumerated_Domain_Value_Definition: Narragansett Bay Group - Dighton Conglomerate

        Enumerated_Domain:

          Enumerated_Domain_Value: Pnbpo

          Enumerated_Domain_Value_Definition: Narragansett Bay Group - Pondville Conglomerate

        Enumerated_Domain:

          Enumerated_Domain_Value: Pnbpu

          Enumerated_Domain_Value_Definition: Narragansett Bay Group - Purgatory Conglomerate

        Enumerated_Domain:

          Enumerated_Domain_Value: Pnbr

          Enumerated_Domain_Value_Definition: Narragansett Bay Group - Rhode Island Formation

        Enumerated_Domain:

          Enumerated_Domain_Value: Pnbs

          Enumerated_Domain_Value_Definition: Narragansett Bay Group - Sachuest Arkose

        Enumerated_Domain:

          Enumerated_Domain_Value: Pnbw

          Enumerated_Domain_Value_Definition: Narragansett Bay Group - Wamsutta Formation

        Enumerated_Domain:

          Enumerated_Domain_Value: PZmc

          Enumerated_Domain_Value_Definition: Other metasedimentary rocks - metaclastic rock, undivided

        Enumerated_Domain:

          Enumerated_Domain_Value: Pngf

          Enumerated_Domain_Value_Definition: Narragansett Pier Plutonic Suite - fine-grained granite

        Enumerated_Domain:

          Enumerated_Domain_Value: Png

          Enumerated_Domain_Value_Definition: Narragansett Pier Plutonic Suite - granite

        Enumerated_Domain:

          Enumerated_Domain_Value: Pnlg

          Enumerated_Domain_Value_Definition: Narragansett Pier Plutonic Suite - leucocratic granite

        Enumerated_Domain:

          Enumerated_Domain_Value: Pnpg

          Enumerated_Domain_Value_Definition: Narragansett Pier Plutonic Suite - porphyritic granite

        Enumerated_Domain:

          Enumerated_Domain_Value: Td

          Enumerated_Domain_Value_Definition: diabase

        Enumerated_Domain:

          Enumerated_Domain_Value: Tvq

          Enumerated_Domain_Value_Definition: vein quartz

        Enumerated_Domain:

          Enumerated_Domain_Value: water

          Enumerated_Domain_Value_Definition: Water

        Enumerated_Domain:

          Enumerated_Domain_Value: Zbm

          Enumerated_Domain_Value_Definition: Blackstone Group - greenstone, amphibolite, serpentinite

        Enumerated_Domain:

          Enumerated_Domain_Value: Zbq

          Enumerated_Domain_Value_Definition: Blackstone Group - quartzite

        Enumerated_Domain:

          Enumerated_Domain_Value: Zbs

          Enumerated_Domain_Value_Definition: Blackstone Group - epidote and biotite schist

        Enumerated_Domain:

          Enumerated_Domain_Value: Zbu

          Enumerated_Domain_Value_Definition: Blackstone Group - undifferentiated rock

        Enumerated_Domain:

          Enumerated_Domain_Value: Zdg

          Enumerated_Domain_Value_Definition: Dedham Granite

        Enumerated_Domain:

          Enumerated_Domain_Value: Zeagg

          Enumerated_Domain_Value_Definition: Esmond Igneous Suite - augen granite gneiss

        Enumerated_Domain:

          Enumerated_Domain_Value: Zefg

          Enumerated_Domain_Value_Definition: Esmond Igneous Suite - fine-grained granite

        Enumerated_Domain:

          Enumerated_Domain_Value: Zefv

          Enumerated_Domain_Value_Definition: Esmond Igneous Suite - felsic volcaniclastic rock

        Enumerated_Domain:

          Enumerated_Domain_Value: Zeg

          Enumerated_Domain_Value_Definition: Esmond Igneous Suite - granite

        Enumerated_Domain:

          Enumerated_Domain_Value: Zegd

          Enumerated_Domain_Value_Definition: Esmond Igneous Suite - granodiorite

        Enumerated_Domain:

          Enumerated_Domain_Value: Zegg

          Enumerated_Domain_Value_Definition: Esmond Igneous Suite - granite gneiss

        Enumerated_Domain:

          Enumerated_Domain_Value: Zem

          Enumerated_Domain_Value_Definition: Esmond Igneous Suite - mafic/intermediate rock

        Enumerated_Domain:

          Enumerated_Domain_Value: Zha

          Enumerated_Domain_Value_Definition: Harmony Group - Absalona Formation

        Enumerated_Domain:

          Enumerated_Domain_Value: Zhn

          Enumerated_Domain_Value_Definition: Harmony Group - Nipsachuck Formation

        Enumerated_Domain:

          Enumerated_Domain_Value: Zhw

          Enumerated_Domain_Value_Definition: Harmony Group - Woonasquatucket Formation

        Enumerated_Domain:

          Enumerated_Domain_Value: Zms

          Enumerated_Domain_Value_Definition: mica schist

        Enumerated_Domain:

          Enumerated_Domain_Value: Znfa

          Enumerated_Domain_Value_Definition: Newport Group - Fort Adams Formation

        Enumerated_Domain:

          Enumerated_Domain_Value: Znnn

          Enumerated_Domain_Value_Definition: Newport Group - Newport Neck Formation

        Enumerated_Domain:

          Enumerated_Domain_Value: Znpn

          Enumerated_Domain_Value_Definition: Newport Group - Price Neck Formation

        Enumerated_Domain:

          Enumerated_Domain_Value: Zp

          Enumerated_Domain_Value_Definition: Plainfield Formation

        Enumerated_Domain:

          Enumerated_Domain_Value: Zsag

          Enumerated_Domain_Value_Definition: Sterling Igneous Suite - alaskite gneiss

        Enumerated_Domain:

          Enumerated_Domain_Value: Zseg

          Enumerated_Domain_Value_Definition: Granites of southeastern Rhode Island - granite

        Enumerated_Domain:

          Enumerated_Domain_Value: Zsepg

          Enumerated_Domain_Value_Definition: Granites of southeastern Rhode Island - porphyritic granite

        Enumerated_Domain:

          Enumerated_Domain_Value: Zsgg

          Enumerated_Domain_Value_Definition: Sterling Igneous Suite - granite gneiss

        Enumerated_Domain:

          Enumerated_Domain_Value: Zsmg

          Enumerated_Domain_Value_Definition: Sterling Igneous Suite - mafic/intermediate gneiss

        Enumerated_Domain:

          Enumerated_Domain_Value: Zwm

          Enumerated_Domain_Value_Definition: Waterford Group - Mamacoke Formation

        Enumerated_Domain:

          Enumerated_Domain_Value: Zwr

          Enumerated_Domain_Value_Definition: Waterford Group - Rope Ferry Gneiss

    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 (USGS)

      Attribute_Domain_Values:

        Enumerated_Domain:

          Enumerated_Domain_Value: CAh;0

          Enumerated_Domain_Value_Definition: Hoppin Formation

        Enumerated_Domain:

          Enumerated_Domain_Value: CApc;0

          Enumerated_Domain_Value_Definition: Pirate Cove Formation

        Enumerated_Domain:

          Enumerated_Domain_Value: Dsa;0

          Enumerated_Domain_Value_Definition: Scituate Igneous Suite - alkali-feldspar granite

        Enumerated_Domain:

          Enumerated_Domain_Value: Dsd;0

          Enumerated_Domain_Value_Definition: Scituate Igneous Suite - diorite/gabbro

        Enumerated_Domain:

          Enumerated_Domain_Value: Dsfg;0

          Enumerated_Domain_Value_Definition: Scituate Igneous Suite - fine-grained granite

        Enumerated_Domain:

          Enumerated_Domain_Value: Dsg;0

          Enumerated_Domain_Value_Definition: Scituate Igneous Suite - granite

        Enumerated_Domain:

          Enumerated_Domain_Value: Dsgd;0

          Enumerated_Domain_Value_Definition: Scituate Igneous Suite - granodiorite

        Enumerated_Domain:

          Enumerated_Domain_Value: Dsm;0

          Enumerated_Domain_Value_Definition: Scituate Igneous Suite - monzonite/monzodiorite

        Enumerated_Domain:

          Enumerated_Domain_Value: Dsr;0

          Enumerated_Domain_Value_Definition: Scituate Igneous Suite - rhyolite

        Enumerated_Domain:

          Enumerated_Domain_Value: Dsv;0

          Enumerated_Domain_Value_Definition: Scituate Igneous Suite - volcaniclastic rock

        Enumerated_Domain:

          Enumerated_Domain_Value: DZc;0

          Enumerated_Domain_Value_Definition: cumberlandite

        Enumerated_Domain:

          Enumerated_Domain_Value: DZgd;0

          Enumerated_Domain_Value_Definition: gabbro/diorite

        Enumerated_Domain:

          Enumerated_Domain_Value: Jm;0

          Enumerated_Domain_Value_Definition: monchiquite

        Enumerated_Domain:

          Enumerated_Domain_Value: Kr;0

          Enumerated_Domain_Value_Definition: Raritan Formation

        Enumerated_Domain:

          Enumerated_Domain_Value: MDca;0

          Enumerated_Domain_Value_Definition: alkali-feldspar granite of Cumberland

        Enumerated_Domain:

          Enumerated_Domain_Value: OCAcdi;0

          Enumerated_Domain_Value_Definition: Conanicut Group - Dutch Island Harbor Formation

        Enumerated_Domain:

          Enumerated_Domain_Value: OCAcep;0

          Enumerated_Domain_Value_Definition: Conanicut Group - East Passage Formation

        Enumerated_Domain:

          Enumerated_Domain_Value: OCAcfb;0

          Enumerated_Domain_Value_Definition: Conanicut Group - Fort Burnside Formation

        Enumerated_Domain:

          Enumerated_Domain_Value: OCAcj;0

          Enumerated_Domain_Value_Definition: Conanicut Group - Jamestown Formation

        Enumerated_Domain:

          Enumerated_Domain_Value: OCAcu;0

          Enumerated_Domain_Value_Definition: Conanicut Group - undifferentiated rock

        Enumerated_Domain:

          Enumerated_Domain_Value: OCAmn;0

          Enumerated_Domain_Value_Definition: minette

        Enumerated_Domain:

          Enumerated_Domain_Value: PAnbd;0

          Enumerated_Domain_Value_Definition: Narragansett Bay Group - Dighton Conglomerate

        Enumerated_Domain:

          Enumerated_Domain_Value: PAnbpo;0

          Enumerated_Domain_Value_Definition: Narragansett Bay Group - Pondville Conglomerate

        Enumerated_Domain:

          Enumerated_Domain_Value: PAnbpu;0

          Enumerated_Domain_Value_Definition: Narragansett Bay Group - Purgatory Conglomerate

        Enumerated_Domain:

          Enumerated_Domain_Value: PAnbr;0

          Enumerated_Domain_Value_Definition: Narragansett Bay Group - Rhode Island Formation

        Enumerated_Domain:

          Enumerated_Domain_Value: PAnbs;0

          Enumerated_Domain_Value_Definition: Narragansett Bay Group - Sachuest Arkose

        Enumerated_Domain:

          Enumerated_Domain_Value: PAnbw;0

          Enumerated_Domain_Value_Definition: Narragansett Bay Group - Wamsutta Formation

        Enumerated_Domain:

          Enumerated_Domain_Value: PAZmc;0

          Enumerated_Domain_Value_Definition: Other metasedimentary rocks - metaclastic rock, undivided

        Enumerated_Domain:

          Enumerated_Domain_Value: Pnfg;0

          Enumerated_Domain_Value_Definition: Narragansett Pier Plutonic Suite - fine-grained granite

        Enumerated_Domain:

          Enumerated_Domain_Value: Png;0

          Enumerated_Domain_Value_Definition: Narragansett Pier Plutonic Suite - granite

        Enumerated_Domain:

          Enumerated_Domain_Value: Pnlg;0

          Enumerated_Domain_Value_Definition: Narragansett Pier Plutonic Suite - leucocratic granite

        Enumerated_Domain:

          Enumerated_Domain_Value: Pnpg;0

          Enumerated_Domain_Value_Definition: Narragansett Pier Plutonic Suite - porphyritic granite

        Enumerated_Domain:

          Enumerated_Domain_Value: TRd;0

          Enumerated_Domain_Value_Definition: diabase

        Enumerated_Domain:

          Enumerated_Domain_Value: TRvq;0

          Enumerated_Domain_Value_Definition: vein quartz

        Enumerated_Domain:

          Enumerated_Domain_Value: water;0

          Enumerated_Domain_Value_Definition: Water

        Enumerated_Domain:

          Enumerated_Domain_Value: Zbm;0

          Enumerated_Domain_Value_Definition: Blackstone Group - greenstone, amphibolite, serpentinite

        Enumerated_Domain:

          Enumerated_Domain_Value: Zbq;0

          Enumerated_Domain_Value_Definition: Blackstone Group - quartzite

        Enumerated_Domain:

          Enumerated_Domain_Value: Zbs;0

          Enumerated_Domain_Value_Definition: Blackstone Group - epidote and biotite schist

        Enumerated_Domain:

          Enumerated_Domain_Value: Zbu;0

          Enumerated_Domain_Value_Definition: Blackstone Group - undifferentiated rock

        Enumerated_Domain:

          Enumerated_Domain_Value: Zdg;0

          Enumerated_Domain_Value_Definition: Dedham Granite

        Enumerated_Domain:

          Enumerated_Domain_Value: Zeag;0

          Enumerated_Domain_Value_Definition: Esmond Igneous Suite - augen granite gneiss

        Enumerated_Domain:

          Enumerated_Domain_Value: Zefg;0

          Enumerated_Domain_Value_Definition: Esmond Igneous Suite - fine-grained granite

        Enumerated_Domain:

          Enumerated_Domain_Value: Zefv;0

          Enumerated_Domain_Value_Definition: Esmond Igneous Suite - felsic volcaniclastic rock

        Enumerated_Domain:

          Enumerated_Domain_Value: Zeg;0

          Enumerated_Domain_Value_Definition: Esmond Igneous Suite - granite

        Enumerated_Domain:

          Enumerated_Domain_Value: Zegd;0

          Enumerated_Domain_Value_Definition: Esmond Igneous Suite - granodiorite

        Enumerated_Domain:

          Enumerated_Domain_Value: Zegg;0

          Enumerated_Domain_Value_Definition: Esmond Igneous Suite - granite gneiss

        Enumerated_Domain:

          Enumerated_Domain_Value: Zem;0

          Enumerated_Domain_Value_Definition: Esmond Igneous Suite - mafic/intermediate rock

        Enumerated_Domain:

          Enumerated_Domain_Value: Zha;0

          Enumerated_Domain_Value_Definition: Harmony Group - Absalona Formation

        Enumerated_Domain:

          Enumerated_Domain_Value: Zhn;0

          Enumerated_Domain_Value_Definition: Harmony Group - Nipsachuck Formation

        Enumerated_Domain:

          Enumerated_Domain_Value: Zhw;0

          Enumerated_Domain_Value_Definition: Harmony Group - Woonasquatucket Formation

        Enumerated_Domain:

          Enumerated_Domain_Value: Zms;0

          Enumerated_Domain_Value_Definition: mica schist

        Enumerated_Domain:

          Enumerated_Domain_Value: Znfa;0

          Enumerated_Domain_Value_Definition: Newport Group - Fort Adams Formation

        Enumerated_Domain:

          Enumerated_Domain_Value: Znnn;0

          Enumerated_Domain_Value_Definition: Newport Group - Newport Neck Formation

        Enumerated_Domain:

          Enumerated_Domain_Value: Znpn;0

          Enumerated_Domain_Value_Definition: Newport Group - Price Neck Formation

        Enumerated_Domain:

          Enumerated_Domain_Value: Zp;0

          Enumerated_Domain_Value_Definition: Plainfield Formation

        Enumerated_Domain:

          Enumerated_Domain_Value: Zsag;0

          Enumerated_Domain_Value_Definition: Sterling Igneous Suite - alaskite gneiss

        Enumerated_Domain:

          Enumerated_Domain_Value: Zseg;0

          Enumerated_Domain_Value_Definition: Granites of southeastern Rhode Island - granite

        Enumerated_Domain:

          Enumerated_Domain_Value: Zsepg;0

          Enumerated_Domain_Value_Definition: Granites of southeastern Rhode Island - porphyritic granite

        Enumerated_Domain:

          Enumerated_Domain_Value: Zsgg;0

          Enumerated_Domain_Value_Definition: Sterling Igneous Suite - granite gneiss

        Enumerated_Domain:

          Enumerated_Domain_Value: Zsmg;0

          Enumerated_Domain_Value_Definition: Sterling Igneous Suite - mafic/intermediate gneiss

        Enumerated_Domain:

          Enumerated_Domain_Value: Zwm;0

          Enumerated_Domain_Value_Definition: Waterford Group - Mamacoke Formation

        Enumerated_Domain:

          Enumerated_Domain_Value: Zwr;0

          Enumerated_Domain_Value_Definition: Waterford Group - Rope Ferry Gneiss

    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 (USGS)

      Attribute_Domain_Values:

        Enumerated_Domain:

          Enumerated_Domain_Value: RICAh;0

          Enumerated_Domain_Value_Definition: Hoppin Formation

        Enumerated_Domain:

          Enumerated_Domain_Value: RICApc;0

          Enumerated_Domain_Value_Definition: Pirate Cove Formation

        Enumerated_Domain:

          Enumerated_Domain_Value: RIDsa;0

          Enumerated_Domain_Value_Definition: Scituate Igneous Suite - alkali-feldspar granite

        Enumerated_Domain:

          Enumerated_Domain_Value: RIDsd;0

          Enumerated_Domain_Value_Definition: Scituate Igneous Suite - diorite/gabbro

        Enumerated_Domain:

          Enumerated_Domain_Value: RIDsfg;0

          Enumerated_Domain_Value_Definition: Scituate Igneous Suite - fine-grained granite

        Enumerated_Domain:

          Enumerated_Domain_Value: RIDsg;0

          Enumerated_Domain_Value_Definition: Scituate Igneous Suite - granite

        Enumerated_Domain:

          Enumerated_Domain_Value: RIDsgd;0

          Enumerated_Domain_Value_Definition: Scituate Igneous Suite - granodiorite

        Enumerated_Domain:

          Enumerated_Domain_Value: RIDsm;0

          Enumerated_Domain_Value_Definition: Scituate Igneous Suite - monzonite/monzodiorite

        Enumerated_Domain:

          Enumerated_Domain_Value: RIDsr;0

          Enumerated_Domain_Value_Definition: Scituate Igneous Suite - rhyolite

        Enumerated_Domain:

          Enumerated_Domain_Value: RIDsv;0

          Enumerated_Domain_Value_Definition: Scituate Igneous Suite - volcaniclastic rock

        Enumerated_Domain:

          Enumerated_Domain_Value: RIDZc;0

          Enumerated_Domain_Value_Definition: cumberlandite

        Enumerated_Domain:

          Enumerated_Domain_Value: RIDZgd;0

          Enumerated_Domain_Value_Definition: gabbro/diorite

        Enumerated_Domain:

          Enumerated_Domain_Value: RIJm;0

          Enumerated_Domain_Value_Definition: monchiquite

        Enumerated_Domain:

          Enumerated_Domain_Value: RIKr;0

          Enumerated_Domain_Value_Definition: Raritan Formation

        Enumerated_Domain:

          Enumerated_Domain_Value: RIMDca;0

          Enumerated_Domain_Value_Definition: alkali-feldspar granite of Cumberland

        Enumerated_Domain:

          Enumerated_Domain_Value: RIOCAcdi;0

          Enumerated_Domain_Value_Definition: Conanicut Group - Dutch Island Harbor Formation

        Enumerated_Domain:

          Enumerated_Domain_Value: RIOCAcep;0

          Enumerated_Domain_Value_Definition: Conanicut Group - East Passage Formation

        Enumerated_Domain:

          Enumerated_Domain_Value: RIOCAcfb;0

          Enumerated_Domain_Value_Definition: Conanicut Group - Fort Burnside Formation

        Enumerated_Domain:

          Enumerated_Domain_Value: RIOCAcj;0

          Enumerated_Domain_Value_Definition: Conanicut Group - Jamestown Formation

        Enumerated_Domain:

          Enumerated_Domain_Value: RIOCAcu;0

          Enumerated_Domain_Value_Definition: Conanicut Group - undifferentiated rock

        Enumerated_Domain:

          Enumerated_Domain_Value: RIOCAmn;0

          Enumerated_Domain_Value_Definition: minette

        Enumerated_Domain:

          Enumerated_Domain_Value: RIPAnbd;0

          Enumerated_Domain_Value_Definition: Narragansett Bay Group - Dighton Conglomerate

        Enumerated_Domain:

          Enumerated_Domain_Value: RIPAnbpo;0

          Enumerated_Domain_Value_Definition: Narragansett Bay Group - Pondville Conglomerate

        Enumerated_Domain:

          Enumerated_Domain_Value: RIPAnbpu;0

          Enumerated_Domain_Value_Definition: Narragansett Bay Group - Purgatory Conglomerate

        Enumerated_Domain:

          Enumerated_Domain_Value: RIPAnbr;0

          Enumerated_Domain_Value_Definition: Narragansett Bay Group - Rhode Island Formation

        Enumerated_Domain:

          Enumerated_Domain_Value: RIPAnbs;0

          Enumerated_Domain_Value_Definition: Narragansett Bay Group - Sachuest Arkose

        Enumerated_Domain:

          Enumerated_Domain_Value: RIPAnbw;0

          Enumerated_Domain_Value_Definition: Narragansett Bay Group - Wamsutta Formation

        Enumerated_Domain:

          Enumerated_Domain_Value: RIPAZmc;0

          Enumerated_Domain_Value_Definition: Other metasedimentary rocks - metaclastic rock, undivided

        Enumerated_Domain:

          Enumerated_Domain_Value: RIPnfg;0

          Enumerated_Domain_Value_Definition: Narragansett Pier Plutonic Suite - fine-grained granite

        Enumerated_Domain:

          Enumerated_Domain_Value: RIPng;0

          Enumerated_Domain_Value_Definition: Narragansett Pier Plutonic Suite - granite

        Enumerated_Domain:

          Enumerated_Domain_Value: RIPnlg;0

          Enumerated_Domain_Value_Definition: Narragansett Pier Plutonic Suite - leucocratic granite

        Enumerated_Domain:

          Enumerated_Domain_Value: RIPnpg;0

          Enumerated_Domain_Value_Definition: Narragansett Pier Plutonic Suite - porphyritic granite

        Enumerated_Domain:

          Enumerated_Domain_Value: RITRd;0

          Enumerated_Domain_Value_Definition: diabase

        Enumerated_Domain:

          Enumerated_Domain_Value: RITRvq;0

          Enumerated_Domain_Value_Definition: vein quartz

        Enumerated_Domain:

          Enumerated_Domain_Value: RIwater;0

          Enumerated_Domain_Value_Definition: Water

        Enumerated_Domain:

          Enumerated_Domain_Value: RIZbm;0

          Enumerated_Domain_Value_Definition: Blackstone Group - greenstone, amphibolite, serpentinite

        Enumerated_Domain:

          Enumerated_Domain_Value: RIZbq;0

          Enumerated_Domain_Value_Definition: Blackstone Group - quartzite

        Enumerated_Domain:

          Enumerated_Domain_Value: RIZbs;0

          Enumerated_Domain_Value_Definition: Blackstone Group - epidote and biotite schist

        Enumerated_Domain:

          Enumerated_Domain_Value: RIZbu;0

          Enumerated_Domain_Value_Definition: Blackstone Group - undifferentiated rock

        Enumerated_Domain:

          Enumerated_Domain_Value: RIZdg;0

          Enumerated_Domain_Value_Definition: Dedham Granite

        Enumerated_Domain:

          Enumerated_Domain_Value: RIZeag;0

          Enumerated_Domain_Value_Definition: Esmond Igneous Suite - augen granite gneiss

        Enumerated_Domain:

          Enumerated_Domain_Value: RIZefg;0

          Enumerated_Domain_Value_Definition: Esmond Igneous Suite - fine-grained granite

        Enumerated_Domain:

          Enumerated_Domain_Value: RIZefv;0

          Enumerated_Domain_Value_Definition: Esmond Igneous Suite - felsic volcaniclastic rock

        Enumerated_Domain:

          Enumerated_Domain_Value: RIZeg;0

          Enumerated_Domain_Value_Definition: Esmond Igneous Suite - granite

        Enumerated_Domain:

          Enumerated_Domain_Value: RIZegd;0

          Enumerated_Domain_Value_Definition: Esmond Igneous Suite - granodiorite

        Enumerated_Domain:

          Enumerated_Domain_Value: RIZegg;0

          Enumerated_Domain_Value_Definition: Esmond Igneous Suite - granite gneiss

        Enumerated_Domain:

          Enumerated_Domain_Value: RIZem;0

          Enumerated_Domain_Value_Definition: Esmond Igneous Suite - mafic/intermediate rock

        Enumerated_Domain:

          Enumerated_Domain_Value: RIZha;0

          Enumerated_Domain_Value_Definition: Harmony Group - Absalona Formation

        Enumerated_Domain:

          Enumerated_Domain_Value: RIZhn;0

          Enumerated_Domain_Value_Definition: Harmony Group - Nipsachuck Formation

        Enumerated_Domain:

          Enumerated_Domain_Value: RIZhw;0

          Enumerated_Domain_Value_Definition: Harmony Group - Woonasquatucket Formation

        Enumerated_Domain:

          Enumerated_Domain_Value: RIZms;0

          Enumerated_Domain_Value_Definition: mica schist

        Enumerated_Domain:

          Enumerated_Domain_Value: RIZnfa;0

          Enumerated_Domain_Value_Definition: Newport Group - Fort Adams Formation

        Enumerated_Domain:

          Enumerated_Domain_Value: RIZnnn;0

          Enumerated_Domain_Value_Definition: Newport Group - Newport Neck Formation

        Enumerated_Domain:

          Enumerated_Domain_Value: RIZnpn;0

          Enumerated_Domain_Value_Definition: Newport Group - Price Neck Formation

        Enumerated_Domain:

          Enumerated_Domain_Value: RIZp;0

          Enumerated_Domain_Value_Definition: Plainfield Formation

        Enumerated_Domain:

          Enumerated_Domain_Value: RIZsag;0

          Enumerated_Domain_Value_Definition: Sterling Igneous Suite - alaskite gneiss

        Enumerated_Domain:

          Enumerated_Domain_Value: RIZseg;0

          Enumerated_Domain_Value_Definition: Granites of southeastern Rhode Island - granite

        Enumerated_Domain:

          Enumerated_Domain_Value: RIZsepg;0

          Enumerated_Domain_Value_Definition: Granites of southeastern Rhode Island - porphyritic granite

        Enumerated_Domain:

          Enumerated_Domain_Value: RIZsgg;0

          Enumerated_Domain_Value_Definition: Sterling Igneous Suite - granite gneiss

        Enumerated_Domain:

          Enumerated_Domain_Value: RIZsmg;0

          Enumerated_Domain_Value_Definition: Sterling Igneous Suite - mafic/intermediate gneiss

        Enumerated_Domain:

          Enumerated_Domain_Value: RIZwm;0

          Enumerated_Domain_Value_Definition: Waterford Group - Mamacoke Formation

        Enumerated_Domain:

          Enumerated_Domain_Value: RIZwr;0

          Enumerated_Domain_Value_Definition: Waterford Group - Rope Ferry Gneiss

    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 (USGS)

      Attribute_Domain_Values:

        Enumerated_Domain:

          Enumerated_Domain_Value: RI001

          Enumerated_Domain_Value_Definition: Hermes, O.D., Gromet, L.P., Murray, D.P., Hamidzada, N.A., 1994, Geologic Map of Rhode Island, Rhode Island Geographic Information System, http://www.edc.uri.edu/rigis-spf/Statewide/state.html#geology, scale 1:100,000.

        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, CONUSdocumentationNENJ.pdf)

    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 (USGS)

      Attribute_Domain_Values:

        Enumerated_Domain:

          Enumerated_Domain_Value: Cambrian

          Enumerated_Domain_Value: Cambro-Ordovician

          Enumerated_Domain_Value: Cambro-Ordovician? to Carboniferous?

          Enumerated_Domain_Value: Cretaceous

          Enumerated_Domain_Value: Devonian

          Enumerated_Domain_Value: Devonian? or Mississippian?

          Enumerated_Domain_Value: Holocene

          Enumerated_Domain_Value: Jurassic

          Enumerated_Domain_Value: Late Proterozoic

          Enumerated_Domain_Value: Late Proterozoic? or older?

          Enumerated_Domain_Value: Late Proterozoic? to Devonian?

          Enumerated_Domain_Value: Pennsylvanian

          Enumerated_Domain_Value: Pennsylvanian? or Late Proterozoic?

          Enumerated_Domain_Value: Permian

          Enumerated_Domain_Value: Triassic?

          Enumerated_Domain_Value: unknown

    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: alkali-granite (alaskite)

          Enumerated_Domain_Value: arenite

          Enumerated_Domain_Value: ash-flow tuff

          Enumerated_Domain_Value: augen gneiss

          Enumerated_Domain_Value: biotite gneiss

          Enumerated_Domain_Value: clay or mud

          Enumerated_Domain_Value: conglomerate

          Enumerated_Domain_Value: diabase

          Enumerated_Domain_Value: felsic gneiss

          Enumerated_Domain_Value: gneiss

          Enumerated_Domain_Value: granite

          Enumerated_Domain_Value: granitic gneiss

          Enumerated_Domain_Value: granodiorite

          Enumerated_Domain_Value: greenstone

          Enumerated_Domain_Value: lamprophyre

          Enumerated_Domain_Value: mafic gneiss

          Enumerated_Domain_Value: marble

          Enumerated_Domain_Value: meta-conglomerate

          Enumerated_Domain_Value: mica schist

          Enumerated_Domain_Value: migmatite

          Enumerated_Domain_Value: olistostrome

          Enumerated_Domain_Value: phyllite

          Enumerated_Domain_Value: plutonic rock (phaneritic)

          Enumerated_Domain_Value: quartz diorite

          Enumerated_Domain_Value: quartz monzonite

          Enumerated_Domain_Value: quartzite

          Enumerated_Domain_Value: rhyolite

          Enumerated_Domain_Value: sandstone

          Enumerated_Domain_Value: siltstone

          Enumerated_Domain_Value: tonalite

          Enumerated_Domain_Value: troctolite

          Enumerated_Domain_Value: tuff

          Enumerated_Domain_Value: unknown

          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: amphibolite

          Enumerated_Domain_Value: arenite

          Enumerated_Domain_Value: argillite

          Enumerated_Domain_Value: augen gneiss

          Enumerated_Domain_Value: diorite

          Enumerated_Domain_Value: gneiss

          Enumerated_Domain_Value: granitic gneiss

          Enumerated_Domain_Value: granodiorite

          Enumerated_Domain_Value: ignimbrite

          Enumerated_Domain_Value: metasedimentary rock

          Enumerated_Domain_Value: mica schist

          Enumerated_Domain_Value: monzonite

          Enumerated_Domain_Value: pegmatite

          Enumerated_Domain_Value: phyllite

          Enumerated_Domain_Value: quartz diorite

          Enumerated_Domain_Value: quartzite

          Enumerated_Domain_Value: sand

          Enumerated_Domain_Value: sandstone

          Enumerated_Domain_Value: schist

          Enumerated_Domain_Value: shale

          Enumerated_Domain_Value: siltstone

          Enumerated_Domain_Value: slate

  Detailed_Description:

    Entity_Type:

      Entity_Type_Label: RI_geol.aat

      Entity_Type_Definition: Arc attribute table for Rhode Island 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: 3

          Enumerated_Domain_Value_Definition: contact, location inferred, queried

        Enumerated_Domain:

          Enumerated_Domain_Value: 4

          Enumerated_Domain_Value_Definition: normal fault, location certain, digitized with upthrown side on the right (code of 1 added to ARC-PARA1 where U/D is designated in source)

        Enumerated_Domain:

          Enumerated_Domain_Value: 6

          Enumerated_Domain_Value_Definition: normal fault, location inferred, queried, digitized with upthrown side on the right (code of 1 added to ARC-PARA1 where U/D is designated in source)

        Enumerated_Domain:

          Enumerated_Domain_Value: 7

          Enumerated_Domain_Value_Definition: shoreline or riverbank

        Enumerated_Domain:

          Enumerated_Domain_Value: 10

          Enumerated_Domain_Value_Definition: thrust fault, location certain, teeth on right from origin (angle of thrusting added to ARC-PARA1 where designated in source)

        Enumerated_Domain:

          Enumerated_Domain_Value: 12

          Enumerated_Domain_Value_Definition: thrust fault, location inferred, queried, teeth on right from origin (angle of thrusting added to ARC-PARA1 where designated in source)

        Enumerated_Domain:

          Enumerated_Domain_Value: 30

          Enumerated_Domain_Value_Definition: fault, sense of displacement unknown or undefined, location certain.

        Enumerated_Domain:

          Enumerated_Domain_Value: 32

          Enumerated_Domain_Value_Definition: fault, sense of displacement unknown or undefined, location inferred or queried.

        Enumerated_Domain:

          Enumerated_Domain_Value: 94

          Enumerated_Domain_Value_Definition: shear zone, certain

        Enumerated_Domain:

          Enumerated_Domain_Value: 99

          Enumerated_Domain_Value_Definition: bounding line (neatline) of coverage

        Enumerated_Domain:

          Enumerated_Domain_Value: 113

          Enumerated_Domain_Value_Definition: strike slip fault, motion unknown, location certain.

        Enumerated_Domain:

          Enumerated_Domain_Value: 115

          Enumerated_Domain_Value_Definition: strike slip fault, motion unknown, location inferred.

        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

        Enumerated_Domain:

          Enumerated_Domain_Value: 1

          Enumerated_Domain_Value_Definition: U/D designated in source.

    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

        Enumerated_Domain:

          Enumerated_Domain_Value: 1

          Enumerated_Domain_Value_Definition: Narragansett Basin border fault

        Enumerated_Domain:

          Enumerated_Domain_Value: 2

          Enumerated_Domain_Value_Definition: probable fault

    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 (USGS)

      Attribute_Domain_Values:

        Enumerated_Domain:

          Enumerated_Domain_Value: RI001

          Enumerated_Domain_Value_Definition: Hermes, O.D., Gromet, L.P., Murray, D.P., Hamidzada, N.A., 1994, Geologic Map of Rhode Island, Rhode Island Geographic Information System, http://www.edc.uri.edu/rigis-spf/Statewide/state.html#geology, scale 1:100,000.

        Enumerated_Domain:

          Enumerated_Domain_Value: RI101

          Enumerated_Domain_Value_Definition: C.L. Dicken flipped arcs.

        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, CONUSdocumentationNENJ.pdf)

  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: 20060130

  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: Content Standard for Digital Geospatial Metadata ("CSDGM version 2")

  Metadata_Standard_Version: FGDC-STD-001-1998