Identification_Information: Citation: Citation_Information: Originator: Richter, D.H. Originator: Ratte, J.C. Originator: Leeman, W.P. Originator: Menzies, Martin Publication_Date: 2000 Title: Geologic map of the McCarthy D-1 quadrangle, Alaska Geospatial_Data_Presentation_Form: vector digital data Series_Information: Series_Name: U.S. Geological Survey Geologic Investigations Series Issue_Identification: USGS Map I-2695 Online_Linkage: http://greenwood.cr.usgs.gov/pub/i-maps/i-2695/ Description: Abstract: Data set describes a 20-million-year-old shield volcano in the Wrangell volcanic field of north-central Alaska. These digital files were used to create the 1:63,360-scale geologic map of the McCarthy D-1 quadrangle. Purpose: Digital representation of geologic mapping facilitates the presentation and analysis of earth-science data. Digital maps may be displayed at any scale or projection, however the geologic data in this coverage is not intended for use at a scale larger that 1:63,360. Supplemental_Information: The digital files for USGS Map I-2695 include: ARC/INFO Export files: mcd1.e00 arc and poly coverage of stratigraphic contacts and geologic units mcline.e00 arc and anno coverage containing linear features, such as, dikes, lahar deposits, alluvial fan margins, andesitic tephra deposits, cross-section line, and traverses. mcpoint.e00 point and anno coverage showing geochemical and geochronologic sample locations mcstruct.e00 point and anno coverage showing strike and dip information mcxsect.e00 arc, poly, and anno coverage of cross section Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2000 Currentness_Reference: publication date Status: Progress: Complete Maintenance_and_Update_Frequency: Unknown Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -141.375 East_Bounding_Coordinate: -141.0 North_Bounding_Coordinate: 62.0 South_Bounding_Coordinate: 61.75 Keywords: Theme: Theme_Keyword_Thesaurus: none Theme_Keyword: geology Theme_Keyword: bedrock Theme_Keyword: volcano Theme_Keyword: shield volcano Place: Place_Keyword_Thesaurus: none Place_Keyword: McCarthy quadrangle Place_Keyword: Alaska Place_Keyword: Wrangell Place_Keyword: Wrangell Mountains Place_Keyword: Nutzotin Mountains Place_Keyword: Sonya Creek volcanic center Access_Constraints: None Use_Constraints: None Point_of_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Richter, Don H. Contact_Position: Geologist Contact_Address: Address_Type: mailing and physical address Address: 4200 University Drive City: Anchorage State_or_Province: AK Postal_Code: 99508-4667 Country: USA Contact_Voice_Telephone: 907-561-1181 Browse_Graphic: Browse_Graphic_File_Name: http://greenwood.cr.usgs.gov/pub/i-maps/i-2695 Browse_Graphic_File_Description: Browse graphic shows the layout of the map, correlation of map units, description of map units, text, tabular data, color photographs, and index map, all laid out following USGS map standards. Browse_Graphic_File_Type: Adobe Portable Document Format (PDF) Data_Set_Credit: Geology mapped by D.H. Richter, J.C. Ratte, W.P. Leeman, and Martin Menzies. The ARC/INFO database was created by Kelly Brunt, Raytheon contractor. ARC/INFO database reviewed by Nancy Shock, who also prepared the ARC files for importing into Illustrator. The Adobe Illustrator layout, which was used for the printed map and for the PDF browse graphic, was done by Denny Welp and Gayle Dumonceaux. Native_Data_Set_Environment: Data set was created using ESRI ARC/Info version 7 on a Unix platform Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: The linework was captured by hand digitizing from a hand-drawn 1:63,000-scale stable base map. Vector and polygon attributes were obtained from a compilation of field maps. The digital data has been visually checked and the geologic map has undergone technical review. Logical_Consistency_Report: This geology data set is a network coverage containing arcs and polygons. Each polygon has a coded attribute designating the mapped geologic unit. Faults and stratigraphic contacts are represented as arcs. When a fault is also a stratigraphic contact, only a single arc is present. Dangling arcs may be present (faults, dikes, etc.) Completeness_Report: These digital files are the geospatial files used to create the geologic map. Files for the text, references, tables (chemical analyses, K/Ar ages), and other figures are not included. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Users of this digital geologic map should respect the intentions of the original mappers and the limitations of the map. This geologic map is intended to be used at a scale of 1:63,360; it is not intended to be used at a more detailed scale. Lineage: Process_Step: Process_Description: This data was hand digitized in ARC/Info from a hand-drawn 1:63,000-scale stable base map. The arcs and polygons were attributed. For the purpose of distribution, the coverage has been converted to an interchange format file using the ARC/Info export command. Process_Date: 1999 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: 7 Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.9996 Longitude_of_Central_Meridian: -141.0 Latitude_of_Projection_Origin: 0.0 False_Easting: 500000 False_Northing: 0.0 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 100 Ordinate_Resolution: 100 Planar_Distance_Units: meters Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: arcs Entity_Type_Definition: Characteristic of the arc features in coverage mcd1 are coded in mcd1.aat, the arc attribute table. The .aat consists of the following items: ARC-CODE and LINETYPE Entity_Type_Definition_Source: This coverage 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 from 0 to 99. Arc-code describes the stratigraphic boundary or fault. Attribute_Definition_Source: this coverage Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 0 Enumerated_Domain_Value_Definition: hidden line Enumerated_Domain: Enumerated_Domain_Value: 1 Enumerated_Domain_Value_Definition: Stratigraphic or intrusive contact, location certain Enumerated_Domain: Enumerated_Domain_Value: 4 Enumerated_Domain_Value_Definition: Normal fault, location certain Enumerated_Domain: Enumerated_Domain_Value: 5 Enumerated_Domain_Value_Definition: Normal fault, location approximate Enumerated_Domain: Enumerated_Domain_Value: 7 Enumerated_Domain_Value_Definition: Shoreline or riverbank Enumerated_Domain: Enumerated_Domain_Value: 14 Enumerated_Domain_Value_Definition: Caldera or crater rim; location inferred Enumerated_Domain: Enumerated_Domain_Value: 15 Enumerated_Domain_Value_Definition: Ice contact (glacier limit) Enumerated_Domain: Enumerated_Domain_Value: 52 Enumerated_Domain_Value_Definition: Concealed fault Enumerated_Domain: Enumerated_Domain_Value: 55 Enumerated_Domain_Value_Definition: Caldera or crater rim; concealed Enumerated_Domain: Enumerated_Domain_Value: 99 Enumerated_Domain_Value_Definition: Bounding line (neatline of coverage) Attribute: Attribute_Label: linetype Attribute_Definition: Description of the geologic contact Attribute_Definition_Source: this coverage Attribute_Domain_Values: Unrepresentable_Domain: Text field describing the type of geologic contact. Detailed_Description: Entity_Type: Entity_Type_Label: polygons Entity_Type_Definition: Charcteristic of the polygon features in coverage mcd1 are code in mcd1.pat, polygon attribute table. The .pat consists of the following items: CLASS and UNIT Entity_Type_Definition_Source: this coverage Attribute: Attribute_Label: class Attribute_Definition: Class is a positive integer value (4 5 B) item in the polygon attribute table. Values range from 13 to 324. The lookup table mcd1.lut contains class and geologic label. See USGS Map I-2695 for full descriptions of the geologic units. Attribute_Definition_Source: USGS Map I-2695 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 13 Enumerated_Domain_Value_Definition: KJs - Marine sedimentary rocks (Cretaceous and Jurassic) Enumerated_Domain: Enumerated_Domain_Value: 15 Enumerated_Domain_Value_Definition: Kkg - Klein Creek pluton (Cretaceous) Enumerated_Domain: Enumerated_Domain_Value: 29 Enumerated_Domain_Value_Definition: Trn - Nikolai Greenstone (Triassic) Enumerated_Domain: Enumerated_Domain_Value: 101 Enumerated_Domain_Value_Definition: glacier Enumerated_Domain: Enumerated_Domain_Value: 102 Enumerated_Domain_Value_Definition: water Enumerated_Domain: Enumerated_Domain_Value: 199 Enumerated_Domain_Value_Definition: Qag - Alaskan glaciation deposits (Holocene) Enumerated_Domain: Enumerated_Domain_Value: 200 Enumerated_Domain_Value_Definition: Qal - Alluvium along streams and in fans (Holocene) Enumerated_Domain: Enumerated_Domain_Value: 201 Enumerated_Domain_Value_Definition: Qoal - Older alluvium (Holocene and Pleistocene) Enumerated_Domain: Enumerated_Domain_Value: 202 Enumerated_Domain_Value_Definition: Qca - Colluvium, undifferentiated (Holocene and Pleistocene) Enumerated_Domain: Enumerated_Domain_Value: 203 Enumerated_Domain_Value_Definition: Qs - Solifluction deposits (Holocene and Pleistocene) Enumerated_Domain: Enumerated_Domain_Value: 204 Enumerated_Domain_Value_Definition: Ql - Landslide deposits (Holocene and Pleistocene) Enumerated_Domain: Enumerated_Domain_Value: 205 Enumerated_Domain_Value_Definition: Qrg - Rock glacier deposits (Holocene) Enumerated_Domain: Enumerated_Domain_Value: 206 Enumerated_Domain_Value_Definition: Qwl - Younger Wisconsin glaciation deposits (Pleistocene) Enumerated_Domain: Enumerated_Domain_Value: 208 Enumerated_Domain_Value_Definition: Qwo - Fluvio-glacial deposits (Pleistocene) Enumerated_Domain: Enumerated_Domain_Value: 209 Enumerated_Domain_Value_Definition: Qwg - Older Wisconsin glaciation deposits (Pleistocene) Enumerated_Domain: Enumerated_Domain_Value: 210 Enumerated_Domain_Value_Definition: Tba - Andesite agglutinates (Tertiary) Enumerated_Domain: Enumerated_Domain_Value: 211 Enumerated_Domain_Value_Definition: Tbpa - Porphyritic andesite flows (Tertiary) Enumerated_Domain: Enumerated_Domain_Value: 212 Enumerated_Domain_Value_Definition: Tbl - Volcanic and volcaniclastic rocks, undifferentiated (Tertiary) Enumerated_Domain: Enumerated_Domain_Value: 213 Enumerated_Domain_Value_Definition: Tdqd - Quartz diorite (Tertiary) Enumerated_Domain: Enumerated_Domain_Value: 214 Enumerated_Domain_Value_Definition: Tdr - Rhyolite domes (Tertiary) Enumerated_Domain: Enumerated_Domain_Value: 215 Enumerated_Domain_Value_Definition: Tdh - Dacite porphyry domes (Tertiary) Enumerated_Domain: Enumerated_Domain_Value: 215 Enumerated_Domain_Value_Definition: Tsm - Andesitic mudflows (Tertiary) Enumerated_Domain: Enumerated_Domain_Value: 217 Enumerated_Domain_Value_Definition: Tsa - Dacite agglutiniate (Tertiary) Enumerated_Domain: Enumerated_Domain_Value: 218 Enumerated_Domain_Value_Definition: Tsl - Andesite flows (Tertiary) Enumerated_Domain: Enumerated_Domain_Value: 219 Enumerated_Domain_Value_Definition: Twl - Lavas of Wiki Peak (Tertiary) Enumerated_Domain: Enumerated_Domain_Value: 220 Enumerated_Domain_Value_Definition: Twr - Rhyolite flow(s) (Tertiary) Enumerated_Domain: Enumerated_Domain_Value: 300 Enumerated_Domain_Value_Definition: Tcc - Andesite cinder cones (Tertiary) Enumerated_Domain: Enumerated_Domain_Value: 301 Enumerated_Domain_Value_Definition: Tsu - Shield lavas, undifferentiated (Tertiary) Enumerated_Domain: Enumerated_Domain_Value: 303 Enumerated_Domain_Value_Definition: Tpf - Dacite pyroclastic flow (Tertiary) Enumerated_Domain: Enumerated_Domain_Value: 305 Enumerated_Domain_Value_Definition: Tm - Mudflows(?) (Tertiary) Enumerated_Domain: Enumerated_Domain_Value: 306 Enumerated_Domain_Value_Definition: Tvu - Intracaldera(?) lavas, undifferentiated (Tertiary) Enumerated_Domain: Enumerated_Domain_Value: 307 Enumerated_Domain_Value_Definition: TKs - Continental sedimentary rocks (Tertiary and Cretaceous) Enumerated_Domain: Enumerated_Domain_Value: 308 Enumerated_Domain_Value_Definition: Tbc - Basalt cinder cone and flow (Tertiary) Enumerated_Domain: Enumerated_Domain_Value: 309 Enumerated_Domain_Value_Definition: Tp - Andesite plug (Tertiary) Enumerated_Domain: Enumerated_Domain_Value: 310 Enumerated_Domain_Value_Definition: PPsc - Station Creek Formation (Pennsylvanian and Permian) Enumerated_Domain: Enumerated_Domain_Value: 311 Enumerated_Domain_Value_Definition: Ph - Hasen Creek Formatin (Permian) Enumerated_Domain: Enumerated_Domain_Value: 313 Enumerated_Domain_Value_Definition: Tsp - Andesite and basalt plugs(?) (Tertiary) Enumerated_Domain: Enumerated_Domain_Value: 314 Enumerated_Domain_Value_Definition: Tsb - Andesite and basalt fragmental rocks (Tertiary) Enumerated_Domain: Enumerated_Domain_Value: 315 Enumerated_Domain_Value_Definition: Tsf - Andesite flows and tephra (Tertiary) Enumerated_Domain: Enumerated_Domain_Value: 316 Enumerated_Domain_Value_Definition: Tsd - Dacite dome (Tertiary) Enumerated_Domain: Enumerated_Domain_Value: 317 Enumerated_Domain_Value_Definition: Trt - Rhyolite tephra (Tertiary) Enumerated_Domain: Enumerated_Domain_Value: 318 Enumerated_Domain_Value_Definition: Tr - Rhyolite dome and plugs (Tertiary) Enumerated_Domain: Enumerated_Domain_Value: 319 Enumerated_Domain_Value_Definition: Trl - Rocker Creek volcanic and volcaniclastic rocks, undifferentiated (Tertiary) Enumerated_Domain: Enumerated_Domain_Value: 320 Enumerated_Domain_Value_Definition: Trr - Rhyolite dome (Tertiary) Enumerated_Domain: Enumerated_Domain_Value: 321 Enumerated_Domain_Value_Definition: Trp - Rhyolite volcaniclastic rocks (Tertiary) Enumerated_Domain: Enumerated_Domain_Value: 322 Enumerated_Domain_Value_Definition: Tdd - Diorite (Tertiary) Enumerated_Domain: Enumerated_Domain_Value: 323 Enumerated_Domain_Value_Definition: Tol - Andesite lavas and mudflows (Tertiary) Enumerated_Domain: Enumerated_Domain_Value: 324 Enumerated_Domain_Value_Definition: Pl - Limestone (Permian) Detailed_Description: Entity_Type: Entity_Type_Label: arcs Entity_Type_Definition: Characteristic of the arc features in coverage mcline are coded in mcline.aat, the arc attribute table. The .aat consists of the following items: ARC-CODE and LINETYPE Entity_Type_Definition_Source: This coverage Attribute: Attribute_Label: arc-code Attribute_Definition: Characteristics of linear features shown on USGS Map I-2695 Attribute_Definition_Source: This coverage Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 4 Enumerated_Domain_Value_Definition: Tdi - Dacite porphyry and andesitic dikes, undifferentiated (Tertiary) Enumerated_Domain: Enumerated_Domain_Value: 5 Enumerated_Domain_Value_Definition: Cross-section line, or traverse of continuous sampling Enumerated_Domain: Enumerated_Domain_Value: 7 Enumerated_Domain_Value_Definition: Ti - Andesite and basalt(?) dikes (Tertiary) Enumerated_Domain: Enumerated_Domain_Value: 13 Enumerated_Domain_Value_Definition: Andesitic tephra deposit Enumerated_Domain: Enumerated_Domain_Value: 51 Enumerated_Domain_Value_Definition: Alluvial fan margin Enumerated_Domain: Enumerated_Domain_Value: 82 Enumerated_Domain_Value_Definition: Tsdi - Dacite dike (Tertiary) Enumerated_Domain: Enumerated_Domain_Value: 97 Enumerated_Domain_Value_Definition: Lahar deposit Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Address: Address_Type: mailing address Address: Box 25286, Building 810, Denver Federal Center City: Denver State_or_Province: CO Postal_Code: 80225 Country: USA Contact_Voice_Telephone: 1-888-ASK-USGS Resource_Description: Geologic Investigations Series I-2695, Geologic map of the McCarthy D-1 quadrangle, Alaska Distribution_Liability: Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Although this data has been used by the U.S. Geological Survey (USGS), no warranty, expressed or implied, is made by the USGS as to the accuracy of the data and related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in the use of these data, software, or related materials. Standard_Order_Process: Non-digital_Form: U.S. Geological Survey Geologic Investigations Series I-2695 (paper map). Fees: $7.00 for paper map. Digital_Form: Digital_Transfer_Information: Format_Name: ARCE File_Decompression_Technique: gzipped tar file Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: