|Name||Schist of various types and ages, unit 9 (Cargo Muchacho Mountains)|
Metamorphic > Amphibolite (Amphibolite)Interpreted as metamorphosed arkose
Metamorphic > Schist (Amphibolite)Includes kyanite-bearing schist (Vitrefrax Fm.)
Metamorphic > Metasedimentary > Metaclastic > Quartzite (Amphibolite)
Metamorphic > Metasedimentary > Metacarbonate > Marble (Amphibolite)
|Comments||Cargo Muchacho Mountains in southeasternmost California. Primarily quartzofeldspathic gneiss|
|Stratigraphic units||Tumco Fm., Vitrefrax Fm.|
Jennings, C.W., Strand, R.G., Rogers, T.H., Boylan, R.T., Moar, R.R., and Switzer, R.A., 1977, Geologic Map of California: California Division of Mines and Geology, Geologic Data Map 2, scale 1:750,000.
Jennings, C.W., 1985, An explanatory text to accompany the 1:750,000 scale fault and geologic maps of California: California Division of Mines and Geology, Bulletin 201, 197 p.
Dillon, J.T., 1976, Geology of the Chocolate and Cargo Muchacho Mountains, southeasternmost California: Santa Barbara, University of California, Ph.D. thesis, 405 p.
Tosdal, R.M., Haxel, G.B., and Wright, J.E., 1989, Jurassic geology of the Sonoran Desert region, southern Arizona, southeastern California, and northernmost Sonora: construction of a continental-margin magmatic arc, in Jenney, J.P., and Reynolds, S.J., eds., Geologic evolution of Arizona: Arizona Geological Society Digest 17, p. 397-434.
Morton, P.K., 1977, Geology and mineral resources of Imperial County, California: California Division of Mines and Geology, County Report 7, 104 p., scale 1:125,000.
Owens, E.O., and Hodder, R.W., 1994, Aluminosilicate mineral assemblages in the Cargo Muchacho Mountains, southern California: metasomatism and gold concentration associated with magmatism and deformation in mesozonal environments: Canadian Journal of Earth Sciences, v. 31, p. 310-322.