| Abstract: | The 1:100,000-scale Cuddeback Lake quadrangle is located in the western Mojave Desert north-northeast of Los Angeles, between the southern Sierra Nevada and San Bernardino Mountains, in Kern and San Bernardino Counties, California. Geomorphic features include high-relief mountains, small hills, volcanic domes, pediments, broad alluvial valleys, and dry lakes. It is one in a series of surficial geologic maps created to investigate landscape development and tectonic evolution of the northern Mojave Desert. The mapped area includes pre-Tertiary plutonic, metavolcanic, metasedimentary, and igneous rocks; Tertiary sedimentary and volcanic rocks; and Quaternary sediments and basalts. The map area includes the El Paso, Lockhart, Blackwater, and Muroc Faults, as well as the central segment of the Garlock Fault Zone. The tectonically active western Mojave Desert and the variety of surficial materials have resulted in distinctive geomorphic features and terrains. Geologic mapping shows that active faults are widespread and have diverted drainage patterns. The tectonically active area near the Garlock Fault Zone and the nearby El Paso Fault influenced development of drainage networks; base level is controlled by fault offset. Evidence of a late Tertiary drainage network is preserved in remnants of alluvial fans and paleodrainage deposits north of the El Paso Mountains, west of the Lava Mountains, and south and west of the Rand Mountains. Holocene fault activity for the Cantil Valley, Lockhart, Garlock, and Rand Mountain Faults is indicated by displaced stream channels, playa-filled depressions, scarps, and shutter ridges. Previously unmapped Holocene and Late Pleistocene fault strands identified near the Rand Mountains may represent a splay at the northwest termination of the Lockhart Fault. The Grass Valley Fault, northwest of Black Mountain, is a right-lateral, strike-slip fault that may be a splay of the Blackwater Fault. Holocene activity on the Grass Valley Fault is indicated by one displaced early Holocene stream terrace. Mapped faults in Fremont Valley are tentatively identified as surficial expressions of the buried Cantil Valley Fault. |
| Genre: | USGS Numbered Series |
| ProdID: | 70038612 |
| Citation Author: | Amoroso, Lee; Miller, David M. |
| Citation Contributing Office: | Geology, Minerals, Energy, and Geophysics Science Center - Menlo Park |
| Citation Datum: | National Geodetic Vertical Datum of 1929 |
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| Citation Language: | English |
| Citation Larger Work Title: | |
| Citation LatN: | 0353000 |
| Citation LatS: | 0350000 |
| Citation LonE: | -1170000 |
| Citation LonW: | -1180000 |
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| Citation No Pagination: | |
| Citation Number Of Pages: | |
| Citation Online Only Flag: | Y |
| Citation Phsyical Description: | Pamphlet: iv, 31 p.; 1 Plate; Plate 1: 56 inches x 30 inches; Readme Data Download; Metadata Download; GIS Database Download |
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| Citation Public Comments: | |
| Citation Publisher: | U.S. Geological Survey |
| Citation Series: | Scientific Investigations Map |
| Citation Series Code: | SIM |
| Citation Series Number: | 3107 |
| Citation Search Results Text: | Surficial geologic map of the Cuddeback Lake 30‘ x 60‘ quadrangle, San Bernardino and Kern counties, California; 2012; SIM; 3107; Amoroso, Lee; Miller, David M. |
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| Citation Year: | 2012 |
| Type: | citation/reference |
| Text: | Surficial geologic map of the Cuddeback Lake 30‘ x 60‘ quadrangle, San Bernardino and Kern counties, California; 2012; SIM; 3107; Amoroso, Lee; Miller, David M. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/sim_3107.jpg |
| URL (INDEX PAGE): | http://pubs.usgs.gov/sim/3107/ |
| Date Other: | Mon, 11 Jun 2012 00:00 -0500 |
| Publisher: | U.S. Geological Survey |
