Analytical method: UNKNOWN

Technique	UNKNOWN
Material	WHOLE ROCK
Mineral	none
Institution	US GEOLOGICAL SURVEY, USA
Reference	Erickson, R L; Silberman, M L; Marsh, S P (1978) Age and composition of igneous rocks, Edna Mountain Quadrangle, Humboldt County, Nevada. Journal of Research of the U. S. Geological Survey, vol.6, no.6, pp.727-743, 1978

Samples analysed with this method