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Munko Claims

Minor podiform chromite deposit, 2 of 6 in Trinity county (in California)

Sections of this page: [Geologic] - [Economic] - [Reference]

Geologic Information
CountryUnited States
State or provinceCalifornia
Geographic location:41°9'33"N, 122°30'57"W
(-122.515833, 41.159167)
Geographic context: (click for info)
Deposit typeminor podiform chromite
Model typeMinor Podiform
Deposit formsinuous ribbons
Deposit texturemassive
Ore typeMetallurgical
Age of depositOrdovician
Age (m.y.)465million years
Host rock typedunite
Host rock length62500
Host rock width57500
Paleotectonic settingsuprasubduction
Ophiolite zonetectonite
Deposits < 10kmpodiform chromite
Rocks within 5kmdunite
plagioclase lherzolite
glacial outwash
Geologic map unit-122.515833333333, 41.1591666666667
Nearby scientific dataFind additional scientific data near this location
Economic Information
Tonnage3e-06million metric tons
Ore depth0m
Cr2O3 grade50percent
Reference information
CommentsLocation uncertain (5,100 ft elevation in the NE quarter of Section 14). Trinity County.
Wagner, D.L., and Saucedo, G.J., 1987, Geologic map of the Weed quadrangle, California: California Division of Mines and Geology Regional Geologic Map Series Map no. 4A, scale 1:250,000.
Wells, F.G., and Hawkes, H.E., 1965, Chromite deposits of Shasta, Tehama, Trinity, and Humboldt counties, California, in Geological investigations of chromite in California, Part 1--Klamath Mountains: California Division of Mines Bulletin 134, pt. 1, ch. 3, 191 p.
Metcalf, R.V., Wallin, E.T., Willse, K.R., and Muller, E.R., 2000, Geology and geochemistry of the ophiolitic Trinity terrane, California--Evidence of middle Paleozoic depleted supra-subduction zone magmatism in a proto-arc setting, in Dilek, Y., Moores, E.M., Elthon, D., and Nicolas, A., eds., Ophiolites and oceanic crust--New insights from field studies and the Ocean Drilling Program: Geological Society of America Special Paper 349, p. 403-418.
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