Identification_Information: Citation: Citation_Information: Originator: Robert G. Bohannon Originator: Chester A. Ruleman Publication_Date: 2009 Title: Geologic Map of the Sulphur Mountain Quadrangle, Park County, Colorado Edition: version 1.0 Geospatial_Data_Presentation_Form: map Series_Information: Series_Name: USGS Scientific Investigations Map Issue_Identification: SIM 3082 Publication_Information: Publication_Place: Denver, Colorado Publisher: U.S. Geological Survey Online_Linkage: http://pubs.usgs.gov/sim/3082 Description: Abstract: The Sulphur Mountain quadrangle, a 7.5 minute quadrangle at a scale of 1:24,000, is in the south-central part of South Park in Park County, Colorado. The main structural element in the Sulphur Mountain quadrangle is the Elkhorn thrust. This northwest-trending fault is the southernmost structure that bounds the west side of the Late Cretaceous and early Tertiary Front Range basement-rock uplift. The Elkhorn fault is poorly exposed and occurs in an area of relatively low relief. The thrust also apparently ends in the central part of the quadrangle, dying out into a broad area of open, upright folds with northwest axes in the Sulphur Mountain area. The South Park Formation, a fluvial unit of conglomerate and sandstone, was deposited during the Paleocene west and southwest of the Elkhorn thrust. The fluvial beds are tightly folded and overturned near the thrust. The overturned beds are overlain by very coarse-grained, unsorted, and unstratified conglomerate and breccia that was derived from granites in the upper plate of the thrust. Neogene and Quaternary normal faulting has dissected this pre-existing Laramide structure in a conjugate pair of faults oriented northwest and northeast. Based on the orientation of the conjugate pair, these extensional normal faults are probably a product of the Rio Grande rift system with an east-northeast-west-southwest-oriented tensional stress field. Purpose: Land-use planners of many kinds (including National Forest managers, developers, city and rural planners, and highway builders) need accurate geologic data with which to make informed decisions. The geologic map of the Sulphur Mountain Quadrange, Colorado is designed to meet this requirement. Supplemental_Information: Compliation Scale: 1:24,000 DATASETS INCLUDED IN THIS GEOSPATIAL DATABASE: sulphur_mt_geo: geologic unit polygons sulphur_mt_line: faults and contacts sulphur_mt_pnts: geologic point features - bedding and foliation Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2009 Currentness_Reference: publication date Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -105.750 East_Bounding_Coordinate: -105.625 North_Bounding_Coordinate: 39.125 South_Bounding_Coordinate: 39.000 Keywords: Theme: Theme_Keyword_Thesaurus: AGI Glossary of Geology Theme_Keyword: Geology Theme_Keyword: Tectonics Theme_Keyword: Elkhorn Thrust Theme_Keyword: South Park Formation Theme_Keyword: Tallahasse Creek Formation Theme_Keyword: Antero Formation Theme_Keyword: Wall Mountain Tuff Theme_Keyword: Fox Hills Sandstone Theme_Keyword: Pierre Shale Theme_Keyword: Niobrara Formation Theme_Keyword: Dakota Sandstone Theme_Keyword: Morrison Formation Theme_Keyword: Laramide Theme_Keyword: Quaternary Theme_Keyword: Neogene Theme_Keyword: Cretaceous Theme_Keyword: Jurassic Theme_Keyword: Middle Proterozoic Theme_Keyword: Benton Shale Place: Place_Keyword_Thesaurus: U.S. Board on Geographic Names (BGN) Place_Keyword: Sulphur Mountain Place_Keyword: South Park Place_Keyword: Front Range Access_Constraints: none Use_Constraints: Acknowledgment of the U.S. Geological Survey would be appreciated in products derived from these data. Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Robert G. Bohannon Contact_Organization: U.S. Geological Survey Contact_Address: Address_Type: mailing address Address: USGS, MS 980, Box 25046, DFC Address: Denver Federal Center City: Lakewood State_or_Province: CO Postal_Code: 80225 Country: USA Contact_Voice_Telephone: 303-236-1235 Contact_Electronic_Mail_Address: bbohannon@usgs.gov Browse_Graphic: Browse_Graphic_File_Name: http://pubs.usgs.gov/SIM/3082 Browse_Graphic_File_Description: Graphical representation of the map Browse_Graphic_File_Type: PDF Native_Data_Set_Environment: Microsoft Windows XP Version 5.1; Arc GIS Version 9.2.0 Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: Data were entered by GIS technician and authors and checked by the geologist that made the field observations. The attributes of this geospatial data set consist of text identifiers and numeric codes that indicate the identity of the geologic unit or type of geologic feature and determine how each feature is symbolized. Logical_Consistency_Report: Map elements were visually checked for overshoots, undershoots, duplicate features, polygon closure, and other errors by the author and by the GIS technician(s) that created the digital database. Automated (ArcInfo) routines were also used to check the databases for polygon label errors, line or point attribution errors, sliver polygons, dangling arcs, intersection errors, and projection information. Check plots of the map were reviewed by at least two other geologists for consistency with basic geologic principles and general conformity to USGS mapping standards. Completeness_Report: Data are complete: no features that could be accurately represented at the compilation scale of 1:24,000 were eliminated or generalized. All geospatial database elements are attributed. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: This map is the result of new field geologic mapping. Contacts, faults and attitudes have a horizontal positional accuracy of approximately 5 meters. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: S.M. Colman Publication_Date: 1985 Title: Map showing tectonic features of late Cenozoic origin in Colorado Series_Information: Series_Name: U.S. Geological Survey Miscellaneous Geologic Investigations Issue_Identification: I-1566 Source_Scale_Denominator: 1000000 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1985 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Coleman (1985) Source_Contribution: geologic features Source_Information: Source_Citation: Citation_Information: Originator: Kellogg, K.S. Publication_Date: 2004 Title: Western Front Range margin near Dillion, Colorado -Interrelationships among thrusts, extensional faults, and large landslides. Series_Information: Series_Name: Colorado Scientific Society Symposium (In Braddock Symposium on the geology of the Front Range, Colorado Scientific Society) Issue_Identification: 1, pg 13-14. Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2004 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Kellogg (2004) Source_Contribution: geologic features Source_Information: Source_Citation: Citation_Information: Originator: Kirkham, R.M. Originator: Rogers, W.P. Publication_Date: 1981 Title: Earthquake potential in Colorado Series_Information: Series_Name: Colorado Geological Survey Bulletin Issue_Identification: Bulletin 43 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1981 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Kirkham (1981) Source_Contribution: geologic features Source_Information: Source_Citation: Citation_Information: Originator: Lisiecki, L.E. Originator: Raymo, M.E. Publication_Date: 2005 Title: A Pliocene stack of 57 globally disturbed benthic delta (super 18) O records Series_Information: Series_Name: Peleoceanography Issue_Identification: v. 20, n. Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2005 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Lisiecki and Raymo (2005) Source_Contribution: geologic features Source_Information: Source_Citation: Citation_Information: Originator: Marvin, R.F. Originator: Mehnert, H.H. Publication_Date: 1988 Title: Radiometric ages; compilation "C" (U.S. Geological Survey; Part two, Arizonia and New Mexico) Series_Information: Series_Name: Isochron/West Issue_Identification: no. 51, p 5-13. Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1988 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Marvin and Mehnert (1988) Source_Contribution: geologic features Source_Information: Source_Citation: Citation_Information: Originator: McIntosh, W.C. Originator: Chapin, C.E. Publication_Date: 2004 Title: Geochronology of the central Colorado volcanic field: Series_Information: Series_Name: Bulletin of the New Mexico Bureau of Geology and Mineral Resources Issue_Identification: Report 160, p. 205-238. Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2004 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: McIntosh and Chapin (2004) Source_Contribution: geologic features Source_Information: Source_Citation: Citation_Information: Originator: Ruleman, C. Originator: Bohannon, R.G. Publication_Date: 2008 Title: Geologic map of the Elkhorn Quadrangle, Park County, Colorado Series_Information: Series_Name: U.S. Geological Survey Scientific Investigations Map Issue_Identification: SIM-3043 Source_Scale_Denominator: 24000 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2008 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Ruleman and Bohannon (2008) Source_Contribution: geologic features Source_Information: Source_Citation: Citation_Information: Originator: Shaffer, M.E. Publication_Date: 1980 Title: Seismic hazard evaluation Spinney Mountain project, Park County, Colorado Series_Information: Series_Name: Technical report to R.W. Beck and Associates Issue_Identification: Report 78-5129 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1980 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Shaffer (1980) Source_Contribution: geologic features Source_Information: Source_Citation: Citation_Information: Originator: Shaffer, M.E. Originator: Williamson, J.V. Publication_Date: 1986 Title: Seismic evaluation of Spinney Mountain Dam Series_Information: Series_Name: Colorado Geologic Survey Special Publication Issue_Identification: Special Publication 28, p. 104-121. Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1986 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Shaffer and Williamson (1986) Source_Contribution: geologic features Source_Information: Source_Citation: Citation_Information: Originator: Widmann, B.L. Originator: Kirkham, R.M. Originator: Rogers, W.P. Publication_Date: 1998 Title: Preliminary Quaternary fault and fold map and database of Colorado Series_Information: Series_Name: Colorado Geological Survey Open-File Report Issue_Identification: Open-File Report 98-8 Source_Scale_Denominator: 500000 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1998 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Widmann and others (1998) Source_Contribution: geologic features Source_Information: Source_Citation: Citation_Information: Originator: Wyant, D.G. Originator: Barker, F. Publication_Date: 1976 Title: Geologic map of the Milligan Lakes Quadrangle, Park County, Colorado Series_Information: Series_Name: U.S. Geological Survey Geologic Quadrangle Map Issue_Identification: Quadrangle Map GQ-1343 Source_Scale_Denominator: 24000 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1976 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Wyant and Barker (1976) Source_Contribution: geologic features Process_Step: Process_Description: The map data were digitized in MAPublisher and saved as shapefiles. The original shapefiles were imported into ARCGIS 9.2.0, converted to feature classes, and stored in a file geodatabase. Polygon topology was built and text map descriptors were added to each feature class. Process_Date: 2009 Process_Step: Process_Description: Draft check plots of the geologic map and explanation were created and submitted for peer review. Geologists reviewed the plots for conformity with U.S. Geological Survey editorial standards and stratigraphic nomenclature. Revisions were made to the geospatial database as needed. Process_Date: 2009 Process_Step: Process_Description: First draft of metadata created by Lyndsay A. Hazen using FGDC ESRI in the ArcCatalog Sofware. Process_Date: 2009 Process_Step: Process_Description: The database files, metadata, and check plots were edited by the USGS Enterprise Publishing Network, and revisions made to the geospatial database as needed. Process_Date: 2009 Process_Step: Process_Description: Metadata imported Process_Date: 2009 Process_Step: Process_Description: Metadata imported. Source_Used_Citation_Abbreviation: C:\DOCUME~1\lahazen\LOCALS~1\Temp\xml199E.tmp Process_Date: 2009 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Grid_Coordinate_System: Grid_Coordinate_System_Name: Universal Transverse Mercator Universal_Transverse_Mercator: UTM_Zone_Number: 13N Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.999600 Longitude_of_Central_Meridian: -105.000000 Latitude_of_Projection_Origin: 0.000000 False_Easting: 500000.000000 False_Northing: 0.000000 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 10 Ordinate_Resolution: 10 Planar_Distance_Units: meters Geodetic_Model: Horizontal_Datum_Name: North American Datum of 1927 Ellipsoid_Name: Clarke 1866 Semi-major_Axis: 6378206.4 Denominator_of_Flattening_Ratio: 294.98 Entity_and_Attribute_Information: Overview_Description: Entity_and_Attribute_Overview: This dataset includes the following feature classes: Feature Dataset: Geology Feature Classes in Geology Dataset: sulphur_mt_geo: geologic unit polygons sulphur_mt_lines: faults and contacts sulphur_mt_pnt: bedding and foliation sulphur_mt_geo: Description of items: MapSymbol--short geologic unit name Description--short geologic unit explanation Age--age of unit COLUMNS TYPE LENGTH OBJECTID GEOMETRY SHAPE GEOMETRY/POLYGON SHAPE_LENGTH DOUBLE SHAPE_AREA DOUBLE MAPSYMPOL STRING 50 DESCRIPTION STRING 50 AGE STRING 50 MAPSYMBOL DESCRIPTION AGE Jm Morrison Formation, Upper Jurassic Kd Dakota Sandstone, Lower Cretaceous Kfh Fox Hills Sandstone, Upper Cretaceous Knb Niobrara Formation and Benton Shale, undifferentiated, Upper Cretaceous Kp Pierre Shale, Upper Cretaceous QTwm Old alluvium, early Pleistocene to late Pliocene Qa Alluvium, Holocene Qac Alluvium and colluvium, undivided, Holocene to late Pleistocene Qai Young dissected pediment deposits, middle Pleistocene Qay Younger alluvial deposits,undivided, late Pleistocene Ql1 Lake, pond, and meadow deposits, Holocene Ql2 Lake, pond, and meadow deposits, Holocene and latest Pleistocene Qls Landslide deposits, late Pleistocene Qp Piedmont deposits, middle to early Pleistocene Qpo Older piedmont deposits, early Pleistocene Qpy Younger piedmont deposits, middle Pleistocene Qsw Slopewash deposits, late Pleistocene Qwm Younger alluvium with Wall Mountain Tuff, late Pleistocene Ta Antero Formation, Oligocene Tcb Conglomerate and breccia, Eocene? Tsc South Park Formation - Conglomerate, Paleocene Tss South Park Formation -Sandstone and conglomerate, Paleocene Tt Tallahasse Creek Formation, Oligocene Twmt Wall Mountain Tuff, Oligocene Xfgn Felsic gneiss, Early Proterozoic Xgn Biotite gneiss, Early Proterozoic Xhgn Hornblende gneiss, Early Proterozoic Xmg Foliated Monzogranite, Early Proterozoic Xmgr Monzogranite, Early Proterozoic Xpeg Pegmatite, Early Proterozoic sulfphur_mt_lines Description of items: DESCRIPTION--short explanation of feature using digital cartographic standard COLUMNS TYPE LENGTH OBJECTID GEOMETRY SHAPE GEOMETRY/LINE DESCRIPTION STRING 100 SHAPE_LENGTH DOUBLE DESCRIPTION Contact-certain Thrust fault-certain Normal fault-certain Normal fault-concealed map boundary sulphur_mt_pnt Description of items: DESCRIPTION--Short explanation of feature using digital cartographic standard DIP--Angle of fault plane inclination, in degrees from horizontal (0-90) AZIMUTH--Compass direction of fault plane trend, in degrees (0-359) COLUMNS TYPE LENGTH OBJECTID GEOMETRY SHAPE GEOMETRY/POINT DESCRIPTION STRING 100 DIP SHORT AZIMUTH SHORT DESCRIPTION Inclined bedding-Showing strike and dip Overturned bedding-Showing strike and dip Vertical bedding-Showing strike Inclined foliation in igneous rock-Showing strike and dip Vertical foliation in igneous rock-Showing strike Inclined foliation in metamorphic rock-Showing strike and dip Vertical foliation in metamorphic rock-Showing strike Entity_and_Attribute_Detail_Citation: none Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Address: Address_Type: mailing address Address: Denver Publishing Service Network Address: MS 902, Box 25046 DFC City: Denver State_or_Province: Colorado Postal_Code: 80225-0046 Country: USA Contact_Voice_Telephone: 303-236-5486 Resource_Description: USGS SIM 3082 Distribution_Liability: Any use of trade, product or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Geological Survey. Although this information product, for the most part, is in the public domain, it also contains copyrighted materials as noted in the text. Permission to reproduce copyrighted items for other than personal use must be secured from the copyright owner. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: ArcGIS Geodatabase, Shapefile File_Decompression_Technique: GZIP compressed TAR file (Unix), ZIP archive (Windows) Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://pubs.usgs.gov/sim/3082 Fees: none Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Address: Address_Type: mailing address Address: USGS Information Services Address: Box 25286 City: Denver State_or_Province: Colorado Postal_Code: 80225-0046 Country: USA Contact_Voice_Telephone: 1-888-ASK-USGS Contact_Electronic_Mail_Address: http://www.usgs.gov Resource_Description: USGS SIM 3082 Distribution_Liability: This database, identified as SIM 3082, has been approved for release and publication by the Director of the USGS. Although this database has been subjected to rigorous review and is substantially complete, the USGS reserves the right to revise the data pursuant to further analysis and review. Furthermore, it is released on condition that neither the USGS nor the United States Government may be held liable for any damages resulting from its authorized or unauthorized use. Metadata_Reference_Information: Metadata_Date: 2009 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Lyndsay A. Hazen Contact_Organization: U.S. Geological Survey Contact_Position: Physical Science Technician Contact_Address: Address_Type: mailing address Address: Denver Federal Center Address: MS 980, Box 25046 City: Denver State_or_Province: Colorado Postal_Code: 80225 Country: USA Contact_Voice_Telephone: 303-236-7648 Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Access_Constraints: none Metadata_Use_Constraints: none