Preliminary integrated geologic map databases for the United States: Digital data for the geology of southeast Alaska by George E. Gehrels and Henry C. Berg

Metadata also available as - [Questions & Answers] - [Parseable text]

Metadata:

Identification_Information
Data_Quality_Information
Spatial_Data_Organization_Information
Spatial_Reference_Information
Entity_and_Attribute_Information
Distribution_Information
Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: Shew, Nora

Originator: Peterson, C. Shaun

Originator: Grabman, Nathaniel

Originator: Mohadjer, Solmaz

Originator: Grunwald, Daniel

Originator: Wilson, Frederic H.

Originator: Hults, Chad K.

Publication_Date: 2006

Title:

Preliminary integrated geologic map databases for the United States: Digital data for the geology of southeast Alaska by George E. Gehrels and Henry C. Berg

Edition: ver. 1.0

Geospatial_Data_Presentation_Form: vector digital data

Series_Information:

Series_Name: United States Geological Survey Open-File Report
Issue_Identification: OFR 2006-????

Online_Linkage: <http://pubs.usgs.gov/of/2006/1290/>

Description:

Abstract:: The southeast Alaska map area includes the Alaska panhandle that extends from Skagway quadrangle on the north to Prince Rupert and Dixon Entrance quadrangles on the south. This data set is a digital version of the geologic map of southeastern Alaska by Gehrels and Berg (1992). The map area includes thirteen 1:250,000 scale quadrangles; at the time of Gehrels and Berg's (1992) compilation, no geologic mapping was available in the Atlin quadrangle.
This data set is a portion of a statewide geology database, which is being compiled by the U.S. Geological Survey's National Surveys and Analysis (NSA) project, whose goal is to compile geologic, geochemical, geophysical, and other data.
Purpose:: This data set represents part of a systematic effort to release geologic map data for the United States in a uniform manner. Geologic data in this series has been compiled from a wide variety of sources, published and unpublished, ranging from state and regional geologic maps to large-scale field mapping.

Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 2006

Currentness_Reference: publication date

Status:

Progress: Complete
Maintenance_and_Update_Frequency: As needed

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -137.7
East_Bounding_Coordinate: -129.9
North_Bounding_Coordinate: 59.6
South_Bounding_Coordinate: 54.6

Keywords:

Theme:

Theme_Keyword_Thesaurus: None
Theme_Keyword: geology
Theme_Keyword: bedrock geology

Place:

Place_Keyword_Thesaurus: Geographic names information system (GNIS)
Place_Keyword: Skagway
Place_Keyword: Mount Fairweather
Place_Keyword: Juneau
Place_Keyword: Taku River
Place_Keyword: Sitka
Place_Keyword: Sumdum
Place_Keyword: Port Alexander
Place_Keyword: Petersburg
Place_Keyword: Bradfield Canal
Place_Keyword: Craig
Place_Keyword: Ketchikan
Place_Keyword: Dixon Entrance
Place_Keyword: Prince Rupert

Access_Constraints: None

Use_Constraints:

None. Acknowledgment of the U.S. Geological Survey would be appreciated in products derived from these data.

Point_of_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey
Contact_Person: Frederic H. Wilson

Contact_Position: Geologist

Contact_Address:

Address_Type: mailing and physical address
Address: 4200 University Drive
City: Anchorage
State_or_Province: Alaska
Postal_Code: 99508
Country: U.S.A.

Contact_Voice_Telephone: 907-786-7448

Contact_Electronic_Mail_Address: fwilson@usgs.gov

Data_Set_Credit:

This data set was prepared by C. Shaun Peterson (contractor), Nora Shew (USGS), Nathaniel Grabman (USGS), and Daniel Grunwald (contractor)

Native_Data_Set_Environment:

Data set was created using ESRI ARC/Info version 7.2.1 on a Unix platform

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:: The original source material for this data set is a folded paper 1:600,000 scale map. The source map's base is an enlarged U.S. Geological Survey 1:2,000,000 scale National Atlas, Albers Equal Area projection map. The paper map was scanned and portions of the scanned image were registered to a digital 1:250,000 scale coastline base. All vector features were hand digitized on screen. Vector and polygon attributes were assigned based on the original source. Some obvious cartographic errors on the original map have been corrected in this digital version, such as solid line faults underwater are now coded as concealed. Other errors have been digitized as shown on the original map. One correction was provided by original author, Henry C. Berg. A single polygon of geologic unit KJgd is shown on the north side of Admiralty Island. Unit KJgd is not mentioned anywhere else in the original publication. This polygon is attributed as KJgb? (Henry C. Berg, oral commun, 2006). The digital data has been checked, reviewed, and edited.

Logical_Consistency_Report:

Each geology coverage is a network coverage containing attributed arcs and polygons. Each polygon has a coded attribute designating the mapped geologic unit. Faults, stratigraphic contacts, and other linear features are represented as arcs. If a fault is also a stratigraphic contact, only a single arc is present. Dangling arcs may be present (faults, dike, etc.)

Completeness_Report:

The complete data set consists of 20 different GIS coverages and an associated relational database of geologic units. Each coverage has the extent of a 1:250,000 scale quadrangle. There are 13 geology coverages and 7 lineament coverages. This digital data set differs from the original Gehrels and Berg (1992) map in the following ways: uses a different base and projection; does not include names of faults or geographic features, the index map showing sources used in the compilation, or the correlation chart.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:: This data is presented for use at a nominal scale of 1:500,000.

Lineage:

Source_Information:

Source_Citation:

Citation_Information:

Originator: Gehrels, George E.

Originator: Berg, Henry C.

Publication_Date: 1992

Title: Geologic map of southeastern Alaska

Geospatial_Data_Presentation_Form: map

Series_Information:

Series_Name: U.S. Geological Survey Miscellaneous Investigations Series
Issue_Identification: Map I-1867

Online_Linkage: www.dggs.dnr.state.ak.us/pubs/pubs?reqtype=citation&ID=12916

Source_Scale_Denominator: 600000

Type_of_Source_Media: paper

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 1992

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: Gehrels and Berg (1992)

Source_Contribution: 100% of original geology compilation

Process_Step:

Process_Description:

Linework for the geology was digitized from a scanned image of the published paper map. The arcs and polygons were attributed. The spatial data bases are provided in UTM projection and geographic coordinates. The native ARC/Info coverages have been exported to an interchange file format, .e00, and also converted to ArcView shape files.

Process_Date: 2006

Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey
Contact_Person: Nora B. Shew

Contact_Position: Geologist

Contact_Address:

Address_Type: mailing and physical address
Address: 4200 University Drive
City: Anchorage
State_or_Province: Alaska
Postal_Code: 99508
Country: U.S.A.

Contact_Voice_Telephone: 907-786-7445

Contact_Electronic_Mail_Address: nshew@usgs.gov

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Vector

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Planar:

Grid_Coordinate_System:

Grid_Coordinate_System_Name: Universal Transverse Mercator

Universal_Transverse_Mercator:

UTM_Zone_Number: 8

Transverse_Mercator:

Scale_Factor_at_Central_Meridian: 0.9996
Longitude_of_Central_Meridian: -135.0
Latitude_of_Projection_Origin: 0.0
False_Easting: 500000
False_Northing: 0

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: coordinate pair

Coordinate_Representation:

Abscissa_Resolution: 0.000256
Ordinate_Resolution: 0.000256

Planar_Distance_Units: meters

Planar:

Grid_Coordinate_System:

Grid_Coordinate_System_Name: Universal Transverse Mercator

Universal_Transverse_Mercator:

UTM_Zone_Number: 9

Transverse_Mercator:

Scale_Factor_at_Central_Meridian: 0.9996
Longitude_of_Central_Meridian: -129.0
Latitude_of_Projection_Origin: 0.0
False_Easting: 500000
False_Northing: 0

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: coordinate pair

Coordinate_Representation:

Abscissa_Resolution: 0.000256
Ordinate_Resolution: 0.000256

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: 294.9787

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: polygons
Entity_Type_Definition:: Characteristics of the polygon features in the geology coverages are coded in the polygon attribute table. The table <cov>.pat includes the following items: CLASS, NSACLASS, NSAMOD, QCLASS (not used), LITH2 (not used), SOURCE ,and LABEL.
Entity_Type_Definition_Source: This data set

Attribute:

Attribute_Label: CLASS

Attribute_Definition:

CLASS is a positive integer value (4 5 B) item in the polygon attribute table. Values range discontinuously from 98 to 5400. CLASS is a numeric code for the geologic unit from Gehrels and Berg, 1992. See Gehrels and Berg, 1992, for complete geologic unit descriptions.

Each map unit from Gehrels and Berg (1992) has been assigned a preliminary NSACLASS value (4 5 B). NSACLASS is a numeric code used for a compilation of geologic mapping for the state of Alaska.

NOTE: Because of the limitations of common GIS fonts, the letters "Mz", "Pz", "Tr", "Pa", and "C" are substituted for the standard symbols for "Mesozoic", "Paleozoic", "Triassic", "Pennsylvanian", and "Cambrian."

Attribute_Definition_Source: This data set

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 98
Enumerated_Domain_Value_Definition: not mapped; NSACLASS = 98

Enumerated_Domain:

Enumerated_Domain_Value: 101
Enumerated_Domain_Value_Definition: ice; NSACLASS = 101

Enumerated_Domain:

Enumerated_Domain_Value: 102
Enumerated_Domain_Value_Definition: water; NSACLASS = 102

Enumerated_Domain:

Enumerated_Domain_Value: 4500
Enumerated_Domain_Value_Definition:: Qs - Surficial sedimentary deposits (Quaternary); NSACLASS = 100

Enumerated_Domain:

Enumerated_Domain_Value: 4510
Enumerated_Domain_Value_Definition: QTv - Volcanic rocks (Quaternary and Tertiary); NSACLASS = 450

Enumerated_Domain:

Enumerated_Domain_Value: 4520
Enumerated_Domain_Value_Definition:: QTs - Sedimentary rocks (Quaternary and Tertiary); NSACLASS = 565

Enumerated_Domain:

Enumerated_Domain_Value: 4530
Enumerated_Domain_Value_Definition: Tv - Volcanic rocks (Tertiary); NSACLASS = 1059

Enumerated_Domain:

Enumerated_Domain_Value: 4540
Enumerated_Domain_Value_Definition: Ts - Sedimentary rocks (Tertiary); NSACLASS = 500

Enumerated_Domain:

Enumerated_Domain_Value: 4550
Enumerated_Domain_Value_Definition:: Tsv - Sedimentary and volcanic rocks, undivided (Tertiary); NSACLASS = 794

Enumerated_Domain:

Enumerated_Domain_Value: 4560
Enumerated_Domain_Value_Definition: Ks - Sedimentary rocks (Cretaceous); NSACLASS = 2866

Enumerated_Domain:

Enumerated_Domain_Value: 4570
Enumerated_Domain_Value_Definition: Kv - Volcanic rocks (Cretaceous); NSACLASS = 2891

Enumerated_Domain:

Enumerated_Domain_Value: 4580
Enumerated_Domain_Value_Definition:: Ksv - Sedimentary and volcanic rocks, undivided (Cretaceous); NSACLASS = 2865

Enumerated_Domain:

Enumerated_Domain_Value: 4581
Enumerated_Domain_Value_Definition:: Ksv? - Sedimentary and volcanic rocks, undivided (Cretaceous); NSACLASS = 2865

Enumerated_Domain:

Enumerated_Domain_Value: 4590
Enumerated_Domain_Value_Definition:: KJs - Sedimentary rocks (Cretaceous and Jurassic); NSACLASS = 2820

Enumerated_Domain:

Enumerated_Domain_Value: 4591
Enumerated_Domain_Value_Definition:: KJs? - Sedimentary rocks (Cretaceous and Jurassic); NSACLASS = 2820

Enumerated_Domain:

Enumerated_Domain_Value: 4600
Enumerated_Domain_Value_Definition: KJv - Volcanic rocks (Cretaceous and Jurassic); NSACLASS = 2340

Enumerated_Domain:

Enumerated_Domain_Value: 4601
Enumerated_Domain_Value_Definition:: KJv? - Volcanic rocks (Cretaceous and Jurassic); NSACLASS = 2340

Enumerated_Domain:

Enumerated_Domain_Value: 4610
Enumerated_Domain_Value_Definition:: KJsv - Sedimentary and volcanic rocks, undivided (Cretaceous and Jurassic); NSACLASS = 2822

Enumerated_Domain:

Enumerated_Domain_Value: 4620
Enumerated_Domain_Value_Definition: Trs - Sedimentary rocks (Triassic); NSACLASS = 4470

Enumerated_Domain:

Enumerated_Domain_Value: 4621
Enumerated_Domain_Value_Definition: Trs? - Sedimentary rocks (Triassic); NSACLASS = 4470

Enumerated_Domain:

Enumerated_Domain_Value: 4630
Enumerated_Domain_Value_Definition:: Trv - Volcanic rocks (rhyolitic to basaltic) (Triassic); NSACLASS = 4474

Enumerated_Domain:

Enumerated_Domain_Value: 4640
Enumerated_Domain_Value_Definition:: Trsv - Sedimentary and volcanic rocks, undivided (Triassic); NSACLASS = 4471

Enumerated_Domain:

Enumerated_Domain_Value: 4650
Enumerated_Domain_Value_Definition: Trc - Carbonate rocks (Triassic); NSACLASS = 4473

Enumerated_Domain:

Enumerated_Domain_Value: 4660
Enumerated_Domain_Value_Definition: Trb - Basaltic rocks (Triassic); NSACLASS = 4420

Enumerated_Domain:

Enumerated_Domain_Value: 4670
Enumerated_Domain_Value_Definition:: Trsc - Clastic sedimentary and carbonate rocks, undivided (Triassic); NSACLASS = 4000

Enumerated_Domain:

Enumerated_Domain_Value: 4680
Enumerated_Domain_Value_Definition: Ps - Sedimentary rocks (Permian); NSACLASS = 5766

Enumerated_Domain:

Enumerated_Domain_Value: 4690
Enumerated_Domain_Value_Definition: Pv - Volcanic rocks (Permian); NSACLASS = 5810

Enumerated_Domain:

Enumerated_Domain_Value: 4700
Enumerated_Domain_Value_Definition: Pc - Carbonate rocks (Permian); NSACLASS = 5765

Enumerated_Domain:

Enumerated_Domain_Value: 4710
Enumerated_Domain_Value_Definition: Pas - Sedimentary rocks (Pennsylvanian); NSACLASS = 6031

Enumerated_Domain:

Enumerated_Domain_Value: 4720
Enumerated_Domain_Value_Definition: Pac - Carbonate rocks (Pennsylvanian); NSACLASS = 6030

Enumerated_Domain:

Enumerated_Domain_Value: 4730
Enumerated_Domain_Value_Definition: Mc - Carbonate rocks (Mississippian); NSACLASS = 6340

Enumerated_Domain:

Enumerated_Domain_Value: 4740
Enumerated_Domain_Value_Definition:: MDsv - Sedimentary and volcanic rocks, undivided (Mississippian and Devonian); NSACLASS = 5930

Enumerated_Domain:

Enumerated_Domain_Value: 4750
Enumerated_Domain_Value_Definition: Ds - Sedimentary rocks (Devonian); NSACLASS = 6939

Enumerated_Domain:

Enumerated_Domain_Value: 4760
Enumerated_Domain_Value_Definition: Dv - Volcanic rocks (Devonian); NSACLASS = 7030

Enumerated_Domain:

Enumerated_Domain_Value: 4761
Enumerated_Domain_Value_Definition: Dv? - Volcanic rocks (Devonian); NSACLASS = 7030

Enumerated_Domain:

Enumerated_Domain_Value: 4770
Enumerated_Domain_Value_Definition:: Dsv - Sedimentary and volcanic rocks, undivided (Devonian); NSACLASS = 7020

Enumerated_Domain:

Enumerated_Domain_Value: 4771
Enumerated_Domain_Value_Definition:: Dsv? - Sedimentary and volcanic rocks, undivided (Devonian); NSACLASS = 7020

Enumerated_Domain:

Enumerated_Domain_Value: 4780
Enumerated_Domain_Value_Definition: Dc - Carbonate rocks (Devonian); NSACLASS = 6938

Enumerated_Domain:

Enumerated_Domain_Value: 4790
Enumerated_Domain_Value_Definition: Dcg - Conglomeratic rocks (Devonian); NSACLASS = 6937

Enumerated_Domain:

Enumerated_Domain_Value: 4800
Enumerated_Domain_Value_Definition: Sc - Carbonate rocks (Silurian); NSACLASS = 6960

Enumerated_Domain:

Enumerated_Domain_Value: 4810
Enumerated_Domain_Value_Definition: Scg - Conglomeratic rocks (Silurian); NSACLASS = 6618

Enumerated_Domain:

Enumerated_Domain_Value: 4820
Enumerated_Domain_Value_Definition: Ss - Sedimentary rocks (Silurian); NSACLASS = 6619

Enumerated_Domain:

Enumerated_Domain_Value: 4830
Enumerated_Domain_Value_Definition: Sv - Volcanic rocks (Silurian); NSACLASS = 6740

Enumerated_Domain:

Enumerated_Domain_Value: 4840
Enumerated_Domain_Value_Definition:: SOs - Sedimentary rocks (Silurian and Ordovician); NSACLASS = 6690

Enumerated_Domain:

Enumerated_Domain_Value: 4841
Enumerated_Domain_Value_Definition:: SOs? - Sedimentary rocks (Silurian and Ordovician); NSACLASS = 6690

Enumerated_Domain:

Enumerated_Domain_Value: 4850
Enumerated_Domain_Value_Definition:: SOv - Volcanic rocks (Silurian and Ordovician); NSACLASS = 6712

Enumerated_Domain:

Enumerated_Domain_Value: 4860
Enumerated_Domain_Value_Definition:: SOsv - Sedimentary and volcanic rocks (Silurian and Ordovician); NSACLASS = 6689

Enumerated_Domain:

Enumerated_Domain_Value: 4861
Enumerated_Domain_Value_Definition:: SOsv? - Sedimentary and volcanic rocks (Silurian and Ordovician); NSACLASS = 6689

Enumerated_Domain:

Enumerated_Domain_Value: 4870
Enumerated_Domain_Value_Definition:: SOsvc - Clastic sedimentary, volcanic, and carbonate rocks, undivided (Silurian and Ordovician); NSACLASS = 6800

Enumerated_Domain:

Enumerated_Domain_Value: 4880
Enumerated_Domain_Value_Definition:: KPs - Sedimentary rocks (Cretaceous to Permian); NSACLASS = 5010

Enumerated_Domain:

Enumerated_Domain_Value: 4881
Enumerated_Domain_Value_Definition:: KPs? - Sedimentary rocks (Cretaceous to Permian); NSACLASS = 5010

Enumerated_Domain:

Enumerated_Domain_Value: 4890
Enumerated_Domain_Value_Definition: KPv - Volcanic rocks (Cretaceous to Permian); NSACLASS = 5105

Enumerated_Domain:

Enumerated_Domain_Value: 4900
Enumerated_Domain_Value_Definition:: KPsv - Sedimentary and volcanic rocks, undivided (Cretaceous to Permian); NSACLASS = 5011

Enumerated_Domain:

Enumerated_Domain_Value: 4910
Enumerated_Domain_Value_Definition:: KPsvc - Clastic sedimentary, volcanic, and carbonate rocks, undivided (Cretaceous to Permian); NSACLASS = 5271

Enumerated_Domain:

Enumerated_Domain_Value: 4920
Enumerated_Domain_Value_Definition:: JMsv - Sedimentary and volcanic rocks, undivided (Jurassic to Mississippian); NSACLASS = 5270

Enumerated_Domain:

Enumerated_Domain_Value: 4930
Enumerated_Domain_Value_Definition:: TrPc - Carbonate rocks (Triassic and(or) Permian); NSACLASS = 4521

Enumerated_Domain:

Enumerated_Domain_Value: 4931
Enumerated_Domain_Value_Definition:: TrPc? - Carbonate rocks (Triassic and(or) Permian); NSACLASS = 4521

Enumerated_Domain:

Enumerated_Domain_Value: 4940
Enumerated_Domain_Value_Definition:: TrPsv - Sedimentary and volcanic rocks, undivided (Triassic and Permian); NSACLASS = 5260

Enumerated_Domain:

Enumerated_Domain_Value: 4950
Enumerated_Domain_Value_Definition:: TrOsv - Sedimentary and volcanic rocks, undivided (Triassic to Ordovician); NSACLASS = 5200

Enumerated_Domain:

Enumerated_Domain_Value: 4960
Enumerated_Domain_Value_Definition:: TrOc - Carbonate rocks (Triassic to Ordovician); NSACLASS = 6617

Enumerated_Domain:

Enumerated_Domain_Value: 4970
Enumerated_Domain_Value_Definition:: PaDsv - Sedimentary and volcanic rocks, undivided (Pennsylvanian to Devonian); NSACLASS = 6095

Enumerated_Domain:

Enumerated_Domain_Value: 4980
Enumerated_Domain_Value_Definition: DSv - Volcanic rocks (Devonian and Silurian); NSACLASS = 7020

Enumerated_Domain:

Enumerated_Domain_Value: 4981
Enumerated_Domain_Value_Definition: DSv? - Volcanic rocks (Devonian and Silurian); NSACLASS = 7020

Enumerated_Domain:

Enumerated_Domain_Value: 4990
Enumerated_Domain_Value_Definition:: DOsv - Sedimentary and volcanic rocks, undivided (Devonian to Ordovician); NSACLASS = 7200

Enumerated_Domain:

Enumerated_Domain_Value: 4991
Enumerated_Domain_Value_Definition:: DOsv? - Sedimentary and volcanic rocks, undivided (Devonian to Ordovician); NSACLASS = 7200

Enumerated_Domain:

Enumerated_Domain_Value: 5000
Enumerated_Domain_Value_Definition: DOc - Carbonate rocks (Devonian to Ordovician); NSACLASS = 6616

Enumerated_Domain:

Enumerated_Domain_Value: 5010
Enumerated_Domain_Value_Definition: DSc - Carbonate rocks (Devonian and Silurian); NSACLASS = 6932

Enumerated_Domain:

Enumerated_Domain_Value: 5020
Enumerated_Domain_Value_Definition:: DSsc - Sedimentary rocks (Devonian and Silurian); NSACLASS = 6953

Enumerated_Domain:

Enumerated_Domain_Value: 5040
Enumerated_Domain_Value_Definition:: Ksvm - Melange, sedimentary and volcanic rocks, undivided (Cretaceous); NSACLASS = 2950

Enumerated_Domain:

Enumerated_Domain_Value: 5041
Enumerated_Domain_Value_Definition:: Ksvm? - Melange, sedimentary and volcanic rocks, undivided (Cretaceous); NSACLASS = 2950

Enumerated_Domain:

Enumerated_Domain_Value: 5050
Enumerated_Domain_Value_Definition: Ksm - Melange, sedimentary rocks (Cretaceous); NSACLASS = 2950

Enumerated_Domain:

Enumerated_Domain_Value: 5060
Enumerated_Domain_Value_Definition: Kvm - Melange, volcanic rocks (Cretaceous); NSACLASS = 2953

Enumerated_Domain:

Enumerated_Domain_Value: 5080
Enumerated_Domain_Value_Definition:: KDsd - Disrupted rocks, sedimentary rocks (Cretaceous to Devonian); NSACLASS = 2971

Enumerated_Domain:

Enumerated_Domain_Value: 5090
Enumerated_Domain_Value_Definition:: KDvd - Disrupted rocks, volcanic rocks (Cretaceous to Devonian); NSACLASS = 2972

Enumerated_Domain:

Enumerated_Domain_Value: 5110
Enumerated_Domain_Value_Definition:: pTmsv - Metasedimentary and metavolcanic rocks (pre-Tertiary); NSACLASS = 12500

Enumerated_Domain:

Enumerated_Domain_Value: 5111
Enumerated_Domain_Value_Definition:: pTmsv? - Metasedimentary and metavolcanic rocks (pre-Tertiary); NSACLASS = 12500

Enumerated_Domain:

Enumerated_Domain_Value: 5120
Enumerated_Domain_Value_Definition: pTmc - Metacarbonate rocks (pre-Tertiary); NSACLASS = 12600

Enumerated_Domain:

Enumerated_Domain_Value: 5130
Enumerated_Domain_Value_Definition:: pOmsv - Metasedimentary and metavolcanic rocks (pre-Ordovician); NSACLASS = 8751

Enumerated_Domain:

Enumerated_Domain_Value: 5140
Enumerated_Domain_Value_Definition: pOmc - Metacarbonate rocks (pre-Ordovician); NSACLASS = 8752

Enumerated_Domain:

Enumerated_Domain_Value: 5150
Enumerated_Domain_Value_Definition: Tgb - Gabbro (Miocene and Oligocene); NSACLASS = 1254

Enumerated_Domain:

Enumerated_Domain_Value: 5160
Enumerated_Domain_Value_Definition: Tgr - Granite (Miocene and Oligocene); NSACLASS = 1250

Enumerated_Domain:

Enumerated_Domain_Value: 5170
Enumerated_Domain_Value_Definition: Tgd - Granodiorite (Oligocene and Eocene); NSACLASS = 1273

Enumerated_Domain:

Enumerated_Domain_Value: 5171
Enumerated_Domain_Value_Definition: Tgd? - Granodiorite (Oligocene and Eocene); NSACLASS = 1273

Enumerated_Domain:

Enumerated_Domain_Value: 5180
Enumerated_Domain_Value_Definition: Tg - Granodiorite (Eocene); NSACLASS = 1305

Enumerated_Domain:

Enumerated_Domain_Value: 5181
Enumerated_Domain_Value_Definition: Tg? - Granodiorite (Eocene); NSACLASS = 1305

Enumerated_Domain:

Enumerated_Domain_Value: 5190
Enumerated_Domain_Value_Definition: Tgt - Granodiorite and tonalite (Paleocene); NSACLASS = 1350

Enumerated_Domain:

Enumerated_Domain_Value: 5191
Enumerated_Domain_Value_Definition: Tgt? - Granodiorite and tonalite (Paleocene); NSACLASS = 1350

Enumerated_Domain:

Enumerated_Domain_Value: 5200
Enumerated_Domain_Value_Definition: TKt - Tonalite (Paleocene and Cretaceous); NSACLASS = 1662

Enumerated_Domain:

Enumerated_Domain_Value: 5201
Enumerated_Domain_Value_Definition: TKt? - Tonalite (Paleocene and Cretaceous); NSACLASS = 1662

Enumerated_Domain:

Enumerated_Domain_Value: 5210
Enumerated_Domain_Value_Definition: TKg - Granodiorite (Paleocene and Cretaceous); NSACLASS = 1655

Enumerated_Domain:

Enumerated_Domain_Value: 5211
Enumerated_Domain_Value_Definition: TKg? - Granodiorite (Paleocene and Cretaceous); NSACLASS = 1655

Enumerated_Domain:

Enumerated_Domain_Value: 5220
Enumerated_Domain_Value_Definition: Kgt - Granodiorite and tonalite (Cretaceous); NSACLASS = 2480

Enumerated_Domain:

Enumerated_Domain_Value: 5221
Enumerated_Domain_Value_Definition: Kgt? - Granodiorite and tonalite (Cretaceous); NSACLASS = 2480

Enumerated_Domain:

Enumerated_Domain_Value: 5230
Enumerated_Domain_Value_Definition: Kdb - Diorite and gabbro (Cretaceous); NSACLASS = 2494

Enumerated_Domain:

Enumerated_Domain_Value: 5240
Enumerated_Domain_Value_Definition: Kum - Ultramafic rocks (Cretaceous); NSACLASS = 2495

Enumerated_Domain:

Enumerated_Domain_Value: 5241
Enumerated_Domain_Value_Definition: Kum? - Ultramafic rocks (Cretaceous); NSACLASS = 2495

Enumerated_Domain:

Enumerated_Domain_Value: 5250
Enumerated_Domain_Value_Definition: Kg - Granodiorite (Cretaceous); NSACLASS = 2493

Enumerated_Domain:

Enumerated_Domain_Value: 5251
Enumerated_Domain_Value_Definition: Kg? - Granodiorite (Cretaceous); NSACLASS = 2493

Enumerated_Domain:

Enumerated_Domain_Value: 5260
Enumerated_Domain_Value_Definition: Kd - Diorite (Cretaceous); NSACLASS = 2540

Enumerated_Domain:

Enumerated_Domain_Value: 5261
Enumerated_Domain_Value_Definition: Kd? - Diorite (Cretaceous); NSACLASS = 2540

Enumerated_Domain:

Enumerated_Domain_Value: 5270
Enumerated_Domain_Value_Definition: Kgb - Gabbro (Cretaceous); NSACLASS = 2550

Enumerated_Domain:

Enumerated_Domain_Value: 5280
Enumerated_Domain_Value_Definition: KJd - Diorite (Cretaceous and Jurassic); NSACLASS = 2990

Enumerated_Domain:

Enumerated_Domain_Value: 5281
Enumerated_Domain_Value_Definition: KJd? - Diorite (Cretaceous and Jurassic); NSACLASS = 2990

Enumerated_Domain:

Enumerated_Domain_Value: 5290
Enumerated_Domain_Value_Definition: KJgb - Gabbro (Cretaceous and Jurassic); NSACLASS = 2920

Enumerated_Domain:

Enumerated_Domain_Value: 5291
Enumerated_Domain_Value_Definition: KJgb? - Gabbro (Cretaceous and Jurassic); NSACLASS = 2920

Enumerated_Domain:

Enumerated_Domain_Value: 5300
Enumerated_Domain_Value_Definition: Jgr - Granite (Jurassic); NSACLASS = 3410

Enumerated_Domain:

Enumerated_Domain_Value: 5301
Enumerated_Domain_Value_Definition: Jgr? - Granite (Jurassic); NSACLASS = 3410

Enumerated_Domain:

Enumerated_Domain_Value: 5310
Enumerated_Domain_Value_Definition: Jt - Tonalite (Jurassic); NSACLASS = 3404

Enumerated_Domain:

Enumerated_Domain_Value: 5320
Enumerated_Domain_Value_Definition: JTrd - Diorite (Jurassic and(or) Triassic); NSACLASS = 3900

Enumerated_Domain:

Enumerated_Domain_Value: 5330
Enumerated_Domain_Value_Definition: Trgb - Gabbro (Triassic); NSACLASS = 4320

Enumerated_Domain:

Enumerated_Domain_Value: 5331
Enumerated_Domain_Value_Definition: Trgb? - Gabbro (Triassic); NSACLASS = 4320

Enumerated_Domain:

Enumerated_Domain_Value: 5340
Enumerated_Domain_Value_Definition: Trg - Granodiorite (Triassic); NSACLASS = 3620

Enumerated_Domain:

Enumerated_Domain_Value: 5350
Enumerated_Domain_Value_Definition:: PPasy - Syenite (Permian and(or) Pennsylvanian); NSACLASS = 5875

Enumerated_Domain:

Enumerated_Domain_Value: 5360
Enumerated_Domain_Value_Definition: Sst - Syenite and trondhjemite (Silurian); NSACLASS = 6730

Enumerated_Domain:

Enumerated_Domain_Value: 5370
Enumerated_Domain_Value_Definition:: SOum - Ultramafic rocks (Silurian and Ordovician); NSACLASS = 6750

Enumerated_Domain:

Enumerated_Domain_Value: 5380
Enumerated_Domain_Value_Definition:: SOq - Quartz diorite (Silurian and Ordovician); NSACLASS = 7650

Enumerated_Domain:

Enumerated_Domain_Value: 5381
Enumerated_Domain_Value_Definition:: SOq? - Quartz diorite (Silurian and Ordovician); NSACLASS = 7650

Enumerated_Domain:

Enumerated_Domain_Value: 5390
Enumerated_Domain_Value_Definition: Ogb - Gabbro (Ordovician); NSACLASS = 7670

Enumerated_Domain:

Enumerated_Domain_Value: 5391
Enumerated_Domain_Value_Definition: Ogb? - Gabbro (Ordovician); NSACLASS = 7670

Enumerated_Domain:

Enumerated_Domain_Value: 5400
Enumerated_Domain_Value_Definition: Cdg - Diorite and granodiorite (Cambrian); NSACLASS = 8500

Attribute:

Attribute_Label: NSAMOD

Attribute_Definition:

NSAMOD is a character (8 10 C) item in the polygon attribute table. It is used as a modifier to item CLASS.

Attribute_Definition_Source: this data set

Attribute_Domain_Values:

Unrepresentable_Domain:: Q - queried unit
GBS - undifferentiated intrusive and stratified rocks; item CLASS indicates predominant lithic unit (shown as stippled area in Gehrels and Berg, 1992)

Attribute:

Attribute_Label: SOURCE

Attribute_Definition:

SOURCE is a character (6 8 C) item found in both the arc and polygon attribute tables. The values are abbreviated codes representing the original source reference for the polygon or arc feature. The format for SOURCE is XX###, where XX is a two letter abbreviation for the 1:250,000 scale quadrangle and ### is a three digit number (with leading zeros). All source codes with '001' are unspecified sources for water and ice features, often paper topographic maps, and DRG or DLG files.

Attribute_Definition_Source: this data set

Attribute_Domain_Values:

Unrepresentable_Domain:: The following SOURCE values are used in this dataset and all refer to Gehrels and Berg, 1992: BC006, CR012, DE008, JU012, KC013, MF011, PE006, PA006, PR003, SI009, SK015, SD016, and TR008.

Detailed_Description:

Entity_Type:

Entity_Type_Label: arcs
Entity_Type_Definition:: Characteristics of the arc features in the geology and lineament coverages are coded in the arc attribute tables. Table <cov>.aat includes the following items: ARC-CODE, ARC-PARA1, ARC-PARA2 (not used), and SOURCE. For explanation of SOURCE, see attribute definitions for polygons.
Entity_Type_Definition_Source: this data set

Attribute:

Attribute_Label: ARC-CODE

Attribute_Definition:

ARC-CODE is a positive integer value (3 3 I) item in the arc attribute table. Values range discontinuously from 0 to 99. Values match one-for-one with geologic features, such as stratigraphic contact, fault, etc. Some ARC-CODE values have modifiers in item ARC-PARA1.

Attribute_Definition_Source: this data set

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 0
Enumerated_Domain_Value_Definition: hidden line

Enumerated_Domain:

Enumerated_Domain_Value: 2
Enumerated_Domain_Value_Definition: Stratigraphic or intrusive contact, location approximate

Enumerated_Domain:

Enumerated_Domain_Value: 3
Enumerated_Domain_Value_Definition:: Stratigraphic or intrusive contact, location inferred or 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 up/down 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

Enumerated_Domain:

Enumerated_Domain_Value: 11
Enumerated_Domain_Value_Definition: Thrust fault, location approximate, teeth on right from origin

Enumerated_Domain:

Enumerated_Domain_Value: 12
Enumerated_Domain_Value_Definition:: Thrust fault, location inferred or queried, teeth on right from origin

Enumerated_Domain:

Enumerated_Domain_Value: 15
Enumerated_Domain_Value_Definition: Ice contact

Enumerated_Domain:

Enumerated_Domain_Value: 30
Enumerated_Domain_Value_Definition: Fault, sense of displacement uncertain, location certain

Enumerated_Domain:

Enumerated_Domain_Value: 31
Enumerated_Domain_Value_Definition: Fault, sense of displacement uncertain, location approximate

Enumerated_Domain:

Enumerated_Domain_Value: 32
Enumerated_Domain_Value_Definition: Fault, sense of displacement uncertain, location inferred

Enumerated_Domain:

Enumerated_Domain_Value: 51
Enumerated_Domain_Value_Definition: Concealed contact

Enumerated_Domain:

Enumerated_Domain_Value: 52
Enumerated_Domain_Value_Definition: Concealed normal fault

Enumerated_Domain:

Enumerated_Domain_Value: 53
Enumerated_Domain_Value_Definition: Concealed thrust fault

Enumerated_Domain:

Enumerated_Domain_Value: 57
Enumerated_Domain_Value_Definition: Concealed right lateral fault

Enumerated_Domain:

Enumerated_Domain_Value: 58
Enumerated_Domain_Value_Definition: Concealed left lateral fault

Enumerated_Domain:

Enumerated_Domain_Value: 60
Enumerated_Domain_Value_Definition: Concealed fault displacement uncertain

Enumerated_Domain:

Enumerated_Domain_Value: 87
Enumerated_Domain_Value_Definition: Right lateral fault, location certain

Enumerated_Domain:

Enumerated_Domain_Value: 90
Enumerated_Domain_Value_Definition: Left lateral fault, location certain

Enumerated_Domain:

Enumerated_Domain_Value: 91
Enumerated_Domain_Value_Definition: Left lateral fault, location approximate

Enumerated_Domain:

Enumerated_Domain_Value: 93
Enumerated_Domain_Value_Definition: Coast Range megalineament

Enumerated_Domain:

Enumerated_Domain_Value: 99
Enumerated_Domain_Value_Definition: Bounding line (neatline) of coverage

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey

Contact_Address:

Address_Type: mailing address
Address: MS 902 Box 25286 Denver Federal Center
City: Lakewood
State_or_Province: CO
Postal_Code: 80225
Country: USA

Contact_Voice_Telephone: 1-888-ASK-USGS

Resource_Description: Open-File Report 2006-1290

Distribution_Liability:

This world-wide web 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, 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 web-site have been used by the USGS, no warranty, expressed or implied, is made by the USGS 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 USGS in the use of this data, software, or related materials.

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Format_Name: ARCE
File_Decompression_Technique: zip files

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name: http://pubs.usgs.gov/of/2006/1290/

Fees: There is no cost for the download of these digital files

Metadata_Reference_Information:

Metadata_Date: 20060915

Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey
Contact_Person: Nora B. Shew

Contact_Address:

Address_Type: mailing and physical address
Address: 4200 University Drive
City: Anchorage
State_or_Province: AK
Postal_Code: 99508
Country: USA

Contact_Voice_Telephone: 907-786-7445

Contact_Electronic_Mail_Address: nshew@usgs.gov

Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001-1998

Generated by mp version 2.4.30 on Fri Sep 15 15:34:09 2006