Identification_Information: Citation: Citation_Information: Originator: DeWitt, Ed Originator: Zech, R.S. Originator: Chase, C.G. Originator: Zartman, R.E. Originator: Kucks, R.P. Originator: Bartleson, Bruce Originator: Rosenlund, G.C. Originator: Early, III, Drummond Publication_Date: 2002 Title: Geologic and aeromagnetic maps of the Fossil Ridge area and vicinity, Gunnison County, Colorado Geospatial_Data_Presentation_Form: vector digital data Series_Information: Series_Name: U.S. Geological Survey Geologic Investigations Series Issue_Identification: USGS Map I-2738 Online_Linkage: http://pubs.usgs.gov/imap/i-2738/ Description: Abstract: This data set includes a GIS geologic map database of an Early Proterozoic metavolcanic and metasedimentary terrane extensively intruded by Early and Middle Proterozoic granitic plutons. Laramide to Tertiary deformation and intrusion of felsic plutons have created numerous small mineral deposits that are described in the tables and are shown on the figures in the accompanying text pamphlet. Also included in the pamphlet are numerous chemical analyses of igneous and meta-igneous bodies of all ages in tables and in summary geochemical diagrams. The text pamphlet also contains a detailed description of map units and discussions of the aeromagnetic survey, igneous and metmorphic rocks, and mineral deposits. The printed map sheet and browse graphic pdf file include the aeromagnetic map of the study area, as well as figures and photographs. Purpose: This GIS geologic map database is provided to facilitate the presentation and analysis of earth-science data for this region of Colorado. This digital map database may be displayed at any scale or projection. However, the geologic data in this coverage are not intended for use at a scale other than 1:30,000. Supplemental useful data accompanying the database are extensive geochemical and mineral deposits data, as well as an aeromagnetic map. Supplemental_Information: The digital files for USGS Map I-2738 include: ArcInfo Export files: geo_poly.e00 arc and poly coverage of stratigraphic contacts and geologic units geo_line.e00 arc coverage containing linear features, such as dikes and faults geo_pnt.e00 point and annotation coverage showing point symbols, such as strike and dip of bedding, strike and dip of foliation and joints, and sample localities. Please note that the azimuth values of some of the point symbols exceed 360 degrees neatline.e00 neatline border for map graphics.e00 graphic file showing accurate graphic representations of point symbols Note: ArcInfo Shapefiles of all of these coverages are also included. Topographic base files: rfossil1112.tfw rfossil1112.tif Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2002 Currentness_Reference: publication date Status: Progress: Complete Maintenance_and_Update_Frequency: Unknown Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -106.75 East_Bounding_Coordinate: -106.46 North_Bounding_Coordinate: 38.79 South_Bounding_Coordinate: 38.59 Keywords: Theme: Theme_Keyword_Thesaurus: none Theme_Keyword: geology Theme_Keyword: geochemistry Theme_Keyword: mineral deposits Theme_Keyword: geochronology Theme_Keyword: aeromagnetic Theme_Keyword: magnetic susceptibility Place: Place_Keyword_Thesaurus: none Place_Keyword: Fossil Ridge area Place_Keyword: Colorado Place_Keyword: Sawatch uplift Place_Keyword: Gunnison County Place_Keyword: Sawatch Range Access_Constraints: None Use_Constraints: None Point_of_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: DeWitt, Ed Contact_Position: Geologist Contact_Address: Address_Type: mailing and physical address Address: Minerals, MS 905 Denver Federal Center City: Denver State_or_Province: CO Postal_Code: 80225 Country: USA Contact_Voice_Telephone: 303-236-5636 Browse_Graphic: Browse_Graphic_File_Name: http://pubs.usgs.gov/imap/i-2738/i-2738.pdf Browse_Graphic_File_Description: Browse graphic shows the geologic map, aeromagnetic map, correlation of map units, description of map units, tabular data, figures showing mineral deposits, 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 Ed DeWitt, R.S. Zech, C.G. Chase, Bruce Bartleson, C.G. Rosenlund, and Drummond Early III. Geochronology by Ed DeWitt and R.E. Zartman. Geophysics by R.A. Martin, Bob Kucks, and Ed DeWitt. The ArcInfo database was created by RedZone Software. ArcInfo database reviewed by Nancy Shock, who also prepared the ArcInfo files for importing into Illustrator. The Adobe Illustrator layout, which was used for the printed map and for the PDF browse graphic, was prepared by Gayle Dumonceaux. Metadata file prepared by F.C. Brunstein. Native_Data_Set_Environment: Data set was created using ESRI ArcInfo 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 1:30,000-scale stable base map. Vector and polygon attributes were obtained from a compilation of field maps. The digital data have been visually checked and the geologic map has undergone technical review. Please note that the azimuth values of some of the point symbols exceed 360 degrees. 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, geochronology), and other figures are not included in the database files but are included in the browse graphics and printed copies of the map and pamphlet. 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 1:30,000; it is not intended to be used at a more detailed scale. Lineage: Process_Step: Process_Description: This data was hand digitized in ArcInfo from a hand-drawn 1:30,000-scale stable base map. Process_Date: 2000 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: zone 13 Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.9996 Longitude_of_Central_Meridian: -105 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: Overview_Description: Entity_and_Attribute_Overview: Entity_and_Attribute_Detail_Citation: The data are supplied in ARC export and shapefile formats. DATABASE STRUCTURE - ARC==================================== Polygon attributes: $RECNO FREQUENCY NAME 1 1 2 80 Cs 3 1 Cs? 4 10 Jj 5 1 Jmj 6 4 Kd 7 37 Kf 8 1 LAKE 9 36 MDc 10 23 Ml 11 28 Ofh 12 37 Om 13 13 Ou 14 32 Pb 15 1 Pg 16 121 Qu 17 2 TKt 18 6 Tgm 19 33 Tr 20 1 Tr? 21 12 Ts 22 9 Ts? 23 1 Tv? 24 1 X 25 1 Xb 26 15 Xc 27 1 Xc? 28 25 Xf 29 14 Xfv 30 31 Xgb 31 24 Xh 32 13 Xiv 33 41 Xmv 34 4 Xr 35 55 Xs 36 1 Xs? 37 6 Xw 38 2 Xwg 39 1 YXgb 40 1 Yg 41 88 Yt 42 1 Yt? 43 3 oF Line symbols: FREQUENCY = 94 TYPE =Dike FAULTTYPE = ACCURACY = 2 FREQUENCY = 1 TYPE =Dike FAULTTYPE = ACCURACY =Inferred 3 FREQUENCY = 112 TYPE =Fault FAULTTYPE =Normal ACCURACY =Approximate 4 FREQUENCY = 121 TYPE =Fault FAULTTYPE =Normal ACCURACY =Certain 5 FREQUENCY = 72 TYPE =Fault MORE? FAULTTYPE =Normal ACCURACY =Concealed 6 FREQUENCY = 14 TYPE =Fault FAULTTYPE =Thrust Fault ACCURACY =Approximate 7 FREQUENCY = 22 TYPE =Fault FAULTTYPE =Thrust Fault ACCURACY =Certain 8 FREQUENCY = 14 TYPE =Fault FAULTTYPE =Thrust Fault ACCURACY =Concealed 9 FREQUENCY = 8 TYPE =Fold FAULTTYPE = ACCURACY =Approximate 10 MORE? FREQUENCY = 16 TYPE =Fold FAULTTYPE = ACCURACY =Certain 11 FREQUENCY = 1 TYPE =Fold FAULTTYPE = ACCURACY =Concealed 12 FREQUENCY = 165 TYPE =quartz-huebnerite-molybdenite-veinlets FAULTTYPE = ACCURACY = Point symbols: $RECNO FREQUENCY TYPE 1 241 bedding-inclined 2 8 bedding-overturned 3 15 igneous flow foliation- inclined 4 4 igneous flow foliation-vertical 5 4 joint-inclined 6 4 joints-vertical 7 1 tectonic foliation-approximate trend of variable attitudes 8 149 tectonic foliation-inclined 9 32 tectonic foliation-vertical 10 159 veinlet point Please note that azimuth values for some of the point symbols exceed 360 degrees. 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-2738, Geologic map of the Fossil Ridge area and vicinity, Gunnison County, Colorado 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-2738 (paper map). For current prices see http://mapping.usgs.gov/esic/prices/maps.html Digital_Form: Digital_Transfer_Information: Format_Name: ARCE File_Decompression_Technique: gzipped tar file and zipped file Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: