Arcilla, Riverside Co., California, USA
| Latitude & Longitude (WGS84): | 33° 47' 0'' North , 117° 28' 46'' West |
|---|---|
| Latitude & Longitude (decimal): | 33.7833511, -117.4794899 |
A populated place located along the eastern side of the Temescal Valley.
Mineral List
Mineral list contains entries from the region specified including sub-localities3 valid minerals.
Rock Types Recorded
Rock list contains entries from the region specified including sub-localities
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Alphabetical List Tree DiagramRegional Geology
This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.
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| Holocene - Late Pleistocene 0 - 0.126 Ma | Young axial-channel deposits Age: Pleistocene (0 - 0.126 Ma) Description: Slightly to moderately consolidated silt, sand, and gravel deposits. Units distinguished from each other on basis of soil-profile development, relative position in local terrace-riser succession, and degree of erosional dissection. In central and eastern San Gabriel Mountains, some deposits contain abundant boulders derived from steep valley sides and steep tributary canyons. Unit in that area also may include some very young alluvial-fan deposits (Qf) and young alluvial- fan deposits (Qyf) emanating from tributary canyons and gulches, especially along Prairie Fork of San Gabriel River. Reference: Morton, D.M., F.K. Miller . Geologic Map of the San Bernardino and Santa Ana 30' x 60' quadrangles, California. U.S. Geological Survey Open-File Report 2006-1217. [42] |
| Late Jurassic - Paleozoic 145 - 541 Ma | Jurassic marine rocks, unit 4 (Peninsular Ranges and Western Transverse Ranges) Age: Phanerozoic (145 - 541 Ma) Stratigraphic Name: Bedford Canyon Formation; Santa Monica Slate; French Valley Formation Description: Shale, sandstone, minor conglomerate, chert, slate, limestone; minor pyroclastic rocks Comments: Southwestern California, Peninsular Ranges. Primarily fine-grained pelitic rocks and graywacke, variably metamorphosed. May include some rocks of Paleozoic age Lithology: Major:{argillite}, Minor:{graywacke,quartzite,phyllite,schist}, Incidental:{chert, conglomerate, gneiss, amphibolite, marble, limestone, ultramafic} Reference: Horton, J.D., C.A. San Juan, and D.B. Stoeser. The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States. doi: 10.3133/ds1052. U.S. Geological Survey Data Series 1052. [133] |
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Localities in this Region
