| Abstract: | Debris flows from the steep, granitic hillslopes of the Kingston Range, CA are commensurate in age with nearby fluvial deposits. Quaternary chronostratigraphic differentiation of debris-flow deposits is based upon time-dependent characteristics such as relative boulder strength, derived from Schmidt Hammer measurements, degree of surface desert varnish, pedogenesis, and vertical separation. Rock strength is highest for Holocene-aged boulders and decreases for Pleistocene-aged boulders weathering to grus. Volumes of age-stratified debris-flow deposits, constrained by deposit thickness above bedrock, GPS surveys, and geologic mapping, are greatest for Pleistocene deposits. Shallow landslide susceptibility, derived from a topographically based GIS model, in conjunction with deposit volumes produces watershed-scale erosion rates of ???2-47 mm ka-1, with time-averaged Holocene rates exceeding Pleistocene rates. ?? 2003 Millpress. |
| Genre: | Conference Paper |
| ProdID: | 70025342 |
| Citation Author: | Schmidt, K. M.; Menges, C. M. |
| Citation Contributing Office: | |
| Citation Datum: | |
| Citation Day: | |
| Citation Edition: | |
| Citation Editor: | Rickenmann D.Chen C.L. |
| Citation End Page: | 230 |
| Citation Issue: | |
| Citation Keywords: | |
| Citation Language: | English |
| Citation Larger Work Title: | International Conference on Debris-Flow Hazards Mitigation: Mechanics, Prediction, and Assessment, Proceedings |
| Citation LatN: | |
| Citation LatS: | |
| Citation LonE: | |
| Citation LonW: | |
| Citation Month: | |
| Citation No Pagination: | |
| Citation Number Of Pages: | 12 |
| Citation Online Only Flag: | |
| Citation Phsyical Description: | |
| Citation Projection: | |
| Citation Public Comments: | |
| Citation Publisher: | |
| Citation Series: | |
| Citation Series Code: | |
| Citation Series Number: | |
| Citation Search Results Text: | Debris-flow deposits and watershed erosion rates near southern Death Valley, CA, United States; 2003; Conference Paper; International Conference on Debris-Flow Hazards Mitigation: Mechanics, Prediction, and Assessment, Proceedings; Schmidt, K. M.; Menges, C. M. |
| Citation Start Page: | 219 |
| Citation Volume: | 1 |
| Citation Year: | 2003 |
| Type: | citation/reference |
| Text: | Debris-flow deposits and watershed erosion rates near southern Death Valley, CA, United States; 2003; Conference Paper; International Conference on Debris-Flow Hazards Mitigation: Mechanics, Prediction, and Assessment, Proceedings; Schmidt, K. M.; Menges, C. M. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Wed, 1 Jan 2003 00:00 -0600 |
| Publisher: | |
