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 2006-1290 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 Geologic data in this series has been compiled from a wide variety of sources, published and unpublished, ranging from state and regional geologic maps to large-scale field mapping.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 .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 .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