Unnamed Jasper occurrences , Lavic, San Bernardino Co., California, USA
|Latitude & Longitude (WGS84):||34° 43' 40'' North , 116° 18' 45'' West|
|Latitude & Longitude (decimal):||34.72778,-116.31250|
Jasper occurrences around the Lavic siding, that is located on the Atchison, Topeka & Santa Fe (AT&SF) railroad, Lavic Lake quadrangle, USGS 7.5' x 7.5' map. Jasper from scattered outcrops in secs. 13, 14, 23 & 24, T8N, R5E, and secs. 10, 11, 12 & 13, T7N, R6E, SBM. Hector and Lavic Lake quadrangles, USGS 7.5 minute series (topographic).
The agates and jaspers are from rocks mapped as undivided volcanics of Tertiary Age by Jenkins (1938). McMackin (1981, p. 1868-1876) suggested it is red, green, brown, and white.
1 valid mineral.
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.
Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org
|Holocene - Pliocene|
0 - 5.333 Ma
|Quaternary alluvium and marine deposits|
Age: Cenozoic (0 - 5.333 Ma)
Stratigraphic Name: Temescal Formation; Modesto Formation; Victor Formation; Alameda Formation; Aromas Red Sands; Bautista Beds; Brawley Formation; Borrego Formation; Burnt Canyon Breccia; Cabezon Fanglomerate; Campus Formation; Casitas Formation; Chemehuevi Formation; Corcoran Clay; Cushenbury Springs Formation; Dos Picachos Gravels; Dripping Springs Formation; Frazier Mountain Formation; Friant Formation; Harold Formation; Heights Fanglomerate; Hookton Formation (part); Huichica Formation; La Habra Formation; Manix Lake Beds; Mohawk Lake Beds; Montezuma Formation; Nadeau Gravel; Ocotillo Conglomerate; Orcutt Formation; Pacoima Formation; Pauba Formation; Peckham Formation; Pinto Formation; Resting Springs Formation; Riverbank Formation; Rohnerville Formation; San Dimas Formation; Shoemaker Gravel; Temecula Arkose; Battery Formation; Bay Point Formation; Colma Formation; Lindavista Formation; Lomita Marl; Merritt Sand; Millerton Formation; Palos Verdes Sand; San Pedro Formation; Sweitzer Formation; Timms Point Silt
Description: Alluvium, lake, playa, and terrace deposits; unconsolidated and semi-consolidated. Mostly nonmarine, but includes marine deposits near the coast.
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. 
Schweitzer (1944): 80-82.
Hagar, D. (1946): 8-9.
Berkholz, Mary Frances (1962): locality 18.
Strong, Mary Frances Berkholz (1971a), Desert Gem Trails. A Field Guide to the Gems and Minerals of the Mojave and Colorado Deserts: Second Revised Edition, Gem Guides Book Co., Baldwin Park, California, 80 pp.: 53.
McMackin (1981): 1868-1876.
Mitchell (1986): 54.