| Abstract: | The Elkhorn thrust is defined by the juxtaposition of Early and Middle Proterozoic metamorphic and igneous rocks against Mesozoic and Tertiary rocks. Within the mapped area, an imbricate frontal thrust system juxtaposes Upper Cretaceous rocks against Paleocene rocks of the South Park Formation. In the southeastern section of the quadrangle, Middle Proterozoic igneous rocks are thrust over the South Park Formation. Syntectonic conglomerates (Txc) are preserved both on the hanging wall and footwall of the Elkhorn thrust. North of the map area we have identified normal faulting of probable Quaternary age. |
| Genre: | USGS Numbered Series |
| ProdID: | 86257 |
| Citation Author: | Ruleman, Chester A.; Bohannon, Robert G. |
| Citation Contributing Office: | USGS Earth Surface Processes |
| Citation Datum: | |
| Citation Day: | |
| Citation Edition: | Version 1.0 |
| Citation Editor: | |
| Citation End Page: | |
| Citation Issue: | |
| Citation Keywords: | |
| Citation Language: | ENGLISH |
| Citation Larger Work Title: | |
| Citation LatN: | 0391500 |
| Citation LatS: | 0390730 |
| Citation LonE: | -1054500 |
| Citation LonW: | -1055230 |
| Citation Month: | |
| Citation No Pagination: | |
| Citation Number Of Pages: | |
| Citation Online Only Flag: | |
| Citation Phsyical Description: | Map Sheet: 32 x 38 inches; Downloads Directory |
| Citation Projection: | Polyconic |
| Citation Public Comments: | |
| Citation Publisher: | Geological Survey (U.S.) |
| Citation Series: | Scientific Investigations Map |
| Citation Series Code: | SIM |
| Citation Series Number: | 3043 |
| Citation Search Results Text: | Geologic Map of the Elkhorn Quadrangle, Park County, Colorado; 2008; SIM; 3043; Ruleman, Chester A.; Bohannon, Robert G. |
| Citation Start Page: | |
| Citation Volume: | |
| Citation Year: | 2008 |
| Type: | citation/reference |
| Text: | Geologic Map of the Elkhorn Quadrangle, Park County, Colorado; 2008; SIM; 3043; Ruleman, Chester A.; Bohannon, Robert G. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/usgs_thumb.jpg |
| URL (INDEX PAGE): | http://pubs.usgs.gov/sim/3043/ |
| URL (INDEX PAGE): | http://ngmdb.usgs.gov/Prodesc/proddesc_84570.htm |
| Date Other: | Sat, 27 Sep 2008 00:00 -0500 |
| Publisher: | Geological Survey (U.S.) |
