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Pala Douglass Mine, Tourmaline Queen Mountain (Pala Mtn; Queen Mtn), Pala, Pala District, San Diego Co., California, USA

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Latitude & Longitude (WGS84): 33° 22' 40'' North , 117° 3' 42'' West
Latitude & Longitude (decimal): 33.37778,-117.06167
Köppen climate type:Csa : Hot-summer Mediterranean climate


Setting:
Located near the center of the NE4SW4 Sec. 23 T9S R2W SBM, about 1.25 miles northeast of Pala, the workings are situated low at the southeastern base of Tourmaline Queen Mountain. The principal development was a shallow cut made in the extreme southern exposure of the Douglass pegmatite dike.

History:
In 1914, Frederick Merrill reported that the American Lithia and Chemical Company owned a half interest in the Douglass claim, with the remaining interest held by T. A. Blakeley, of San Bernardino.

In 1951, Richard H. Jahns listed the principal output as gem and specimen quality tourmaline and quartz. In 1958, ownership of the mine was considered undetermined by F. H. Weber, while noting that the area was located on patented non-mining land. The private property is encompassed by lands managed for the benefit of the Pala Band of Mission Indians by the Bureau of Indian Affairs (BIA).


Mineral List


8 valid minerals.

Regional 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 - Pliocene
0 - 5.333 Ma



ID: 2817582
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; 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]

Cretaceous
66 - 145 Ma



ID: 3186295
Mesozoic intrusive rocks

Age: Cretaceous (66 - 145 Ma)

Lithology: Intrusive igneous rocks

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Cretaceous
66 - 145 Ma



ID: 2703153
Gabbro, undivided

Age: Cretaceous (66 - 145 Ma)

Description: Massive, coarse-grained, dark-gray and black biotite-hornblende-hypersthene gabbro.

Reference: Kennedy, M.P., and S.S. Tan. digital prep. by Bovard et al. Geologic Map of the Oceanside 30’ x 60’ Quadrangle, California. California Department of Conservation California Geological Survey. [131]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License



This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Merrill, F. J. H. (1914), Geology and Mineral Resources of San Diego and Imperial Counties: Gems, Lithia Minerals. California State Mining Bureau, San Francisco, Cal. California State Printing Office. Chapter 1, pages 61-78.
Jahns, R. H. and Wright, L. A. (1951), Gem and Lithium-bearing pegmatites of the Pala District, San Diego County, California. California Division of Mines special report 7A: p. 14, 72 pp.
Weber, F. H. (1963), Geology and mineral resources of San Diego County, California. California Division of Mines and Geology, County Report 3: p. 109.

 
Mineral and/or Locality  
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