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Sample I-SW193

NavDat sample number 2753 · MONZONITE

Sample

Sample IDI-SW193
Rock nameMONZONITE
Rock typePLUTONIC
CompositionFELSIC
MaterialIGNEOUS
Collected byB.M. Page, Stanford University, and R. Speed, Northwestern University
CommentRock is fine- to coarse-grained plagioclase, K feldspar and quartz in variable quantities, and brown biotite. This large composite pluton Page, 1965 invades and metamorphoses welded tuff of post-Triassic and probable Tertiary age; the intrusive and extrusive rocks are probably cogenetic.

Location

Latitude39.6908
Longitude-118.139
LocationStillwater Range, Churchill County, NV
State / provinceNevada
Location commentIXL Canyon pluton

Age

Age (Ma)ErrorMinMaxGeologic ageDated by
29 27 31

Analyses

No chemical analyses are stored for this sample.

References