Pomona, Los Angeles Co., California, USA
Latitude & Longitude (WGS84): | 34° 3' 19'' North , 117° 45' 8'' West |
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Latitude & Longitude (decimal): | 34.05528,-117.75222 |
Köppen climate type: | Csb : Warm-summer Mediterranean climate |
A city.
Mineral List
Mineral list contains entries from the region specified including sub-localitiesRegional 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.
Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org
Holocene 0 - 0.0117 Ma ID: 2251172 | Young alluvial-fan deposits, Unit 3 Age: Anthropocene (0 - 0.0117 Ma) Description: Slightly to moderately consolidated silt, sand, and coarse-grained sand to bouldery alluvial-fan deposits having slightly to moderately dissected surfaces. In Devore area, unit has stage S6 or incipient stage S5 soils developed. West of Mojave River, consists of relatively uniform, medium brown silt and sand containing sparse granule and pebble lenses and scattered, matrix-supported, pebble-sized clasts. Fan surfaces are slightly to moderately dissected, and in many places show low amplitude, rolling surfaces having swales and ridges parallel to axes of fans. In this area, may include some Qyf2 and Qyf4 deposits. Cut by several large Qyw washes incised to depths as great as 4 m, containing active medial Qw channels too small to map 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] |
Holocene - Pliocene 0 - 5.333 Ma ID: 2885167 | 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. Lithology: Major:{coarse alluvium}, Minor:{fine alluvium} 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
- California
- Los Angeles Co.