Sample MP-773

NavDat sample number 32586 · GRANITE

Sample

Sample ID	MP-773
Rock name	GRANITE
Rock type	PLUTONIC
Composition	FELSIC
Material	IGNEOUS

Location

Latitude	37.6833
Longitude	-119.41
Location	Yosemite Valley
State / province	California
Pluton	El Capitan Granite - Gray Peak pluton

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
102		91.8	112.2

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	70.1		WT%	RAPID_ROCK
TIO2	0.36		WT%	RAPID_ROCK
AL2O3	14.6		WT%	RAPID_ROCK
FE2O3	1.7		WT%	RAPID_ROCK
FEO	2.2		WT%	RAPID_ROCK
MNO	0.08		WT%	RAPID_ROCK
MGO	0.51		WT%	RAPID_ROCK
CAO	2.3		WT%	RAPID_ROCK
NA2O	3.9		WT%	RAPID_ROCK
K2O	3.8		WT%	RAPID_ROCK
P2O5	0.1		WT%	RAPID_ROCK

References

Bateman, Paul C; Dodge, Franklin C W; Bruggman, Peggy E (1984) Major oxide analyses, CIPW norms, modes, and bulk specific gravities of plutonic rocks from the Mariposa 1 degrees by 2 degrees sheet, central Sierra Nevada, California. Open-File Report - U. S. Geological Survey, Report: OF 84-0162, 59 pp., 1984