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Sample UAKA-73-70

NavDat sample number 123977 · PEGMATITE

Sample

Sample IDUAKA-73-70
Rock namePEGMATITE
Rock typePLUTONIC
CompositionFELSIC
MaterialIGNEOUS
CommentMuscovite, Pegmatite Thin dike in foliated to gneissic quartz monzonite of the sothern Baboquivari Mtns. The dikes have a northerly strike. Preliminary zircon U-Pb data indicates a Jurassic age for the host rocks, (Haxel and other, this vol). The K-Ar clock was reset by a mid Tertiary thermal event

Location

Latitude31.5833
Longitude-111.593
LocationPresumidio Peak Quad., Yuma Co., AZ
State / provinceArizona

Age

Age (Ma)ErrorMinMaxGeologic ageDated by
30.3 29.7 30.9

Analyses

No chemical analyses are stored for this sample.

References