Description: Kimberlite intrusives in diatremes in the Devonian/Devonian(?); Impact structure determined by drilling in the Powder River Basin. Data was digitized from original scribe sheets used to prepare the published Geologic Map of Wyoming (Love and Christiansen, 1985.
Service Item Id: eac6dce259e54ed88b0e85681723b2a4
Copyright Text: Geologic Map of Wyoming, Love and Christiansen, 1985
Description: This data set consists of lines representing geologic faults at 1:500,000 scale. Data was digitized from original scribe sheets used to prepare the published Geologic Map of Wyoming (Love and Christiansen, 1985.Fault types:Fault—Displacement unknown; dotted where concealedNormal fault—Dotted where concealed; ball and bar on downthrown blockThrust fault-Dotted where concealed; sawteeth on upper (tectonically higher) plate
Service Item Id: eac6dce259e54ed88b0e85681723b2a4
Copyright Text: David Love, Anne Coe Christiansen: original scribe sheets. Pat Stamile, USGS; Chris Arneson and Laisan Serebryakov, WWRC: digitized faults.
Description: This data set consists of lines representing geologic dikes at 1:500,000 scale. Data was digitized from original scribe sheets used to prepare the published Geologic Map of Wyoming (Love and Christiansen, 1985.
Service Item Id: eac6dce259e54ed88b0e85681723b2a4
Copyright Text: David Love, Anne Coe Christiansen: original scribe sheets. Pat Stamile, USGS; Chris Arneson and Laisan Serebryakov, WWRC: digitized dikes.
Description: This data set was created from the geologic units. It represents where two differing rock units contact each other.This data set was updated in 2013 by the WSGS. Polygons were merged, description information was completed, and geologic units were converted to representations to retain unit colors.The geologic map was digitized by Green, G.N., and Drouillard, P.H., 1994, from original scribe sheets used to prepare the published 1:500,000-scale Geologic Map of Wyoming (Love and Christiansen, 1985). Stable base contact prints of the scribe sheets were scanned on a Tektronix 4991 digital scanner. The scanner automatically converts the scanned image to an ASCII vector format. These vectors were transferred to a VAX minicomputer, where they were loaded into Arc/Info. The dataset includes both linear and polygon features, with attributes derived from the original 1985 map. Original images (Map, Legend, and Sources): http://www.uwyo.edu/geolgeophys/about/geologic-map-wyoming.html
Service Item Id: eac6dce259e54ed88b0e85681723b2a4
Copyright Text: WSGS update in 2013. Gregory N. Green, and Patricia H. Drouillard, 1994, digitized the Geologic Map of Wyoming. Original scribe sheets and negatives were from David Love, Anne Coe Christiansen. Pat Stamile of the USGS and Chris Arneson and Laisan Serebryakov of the University of Wyoming Water Resources Center provided digital review. Original Geologic Map of Wyoming, Love and Christiansen, 1985.
Description: This data set was updated in 2013 by the WSGS. Polygons were merged, description information was completed, and geologic units were converted to representations to retain unit colors.The geologic map was digitized by Green, G.N., and Drouillard, P.H., 1994, from original scribe sheets used to prepare the published 1:500,000-scale Geologic Map of Wyoming (Love and Christiansen, 1985). Stable base contact prints of the scribe sheets were scanned on a Tektronix 4991 digital scanner. The scanner automatically converts the scanned image to an ASCII vector format. These vectors were transferred to a VAX minicomputer, where they were loaded into Arc/Info. The dataset includes both linear and polygon features, with attributes derived from the original 1985 map. Original images (Map, Legend, and Sources): http://www.uwyo.edu/geolgeophys/about/geologic-map-wyoming.htmlDIGITAL DATA INFORMATION:GEOLOGIC SYMBOLOGY (FGDCGeoAge font used for labeling Special Characters in SYMBOL field):Mz = MesozoicPz = PaleozoicK = Cretaceous^ = TriassicIP = Pennsylvanian_ = Cambrian< = ProterozoicY = Middle ProterozoicX = Early ProterozoicW = Late ArcheanV = Middle ArcheanU = Early ArcheanFOOTNOTES (fn):1. Query indicates uncertainty of position of top of unit within the Pleistocene.2. Age of upper parts of uppermost Miocene units is problematic. These parts have historically been assigned to the Pliocene. Successive reductions in radiometric age of the top of the Miocene in Europe to 7 Ma (Lambert, 1971) and to 5 Ma (Berggren, 1972) place a Pliocene age in question, although the top beds of the formations have not been dated.3. Karlstrom and others (1983).4. Divis (1976).5. Houston and others (1968).6. Snyder (1980).7. McCallum (1968).
Service Item Id: eac6dce259e54ed88b0e85681723b2a4
Copyright Text: WSGS update in 2013. Gregory N. Green, and Patricia H. Drouillard, 1994, digitized the Geologic Map of Wyoming. Original scribe sheets and negatives were from David Love, Anne Coe Christiansen. Pat Stamile of the USGS and Chris Arneson and Laisan Serebryakov of the University of Wyoming Water Resources Center provided digital review. Original Geologic Map of Wyoming, Love and Christiansen, 1985.