Sample LE-28

NavDat sample number 32585 · GRANITE

Sample

Sample ID	LE-28
Rock name	GRANITE
Rock type	PLUTONIC
Composition	FELSIC
Material	IGNEOUS

Location

Latitude	37.9033
Longitude	-119.827
Location	Yosemite Valley
State / province	California
Pluton	El Capitan Granite - Bald Mountain 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	71.08		WT%	RAPID_ROCK
TIO2	0.33		WT%	RAPID_ROCK
AL2O3	14.92		WT%	RAPID_ROCK
FE2O3	0.85		WT%	RAPID_ROCK
FEO	1.48		WT%	RAPID_ROCK
MNO	0.069		WT%	RAPID_ROCK
MGO	0.59		WT%	RAPID_ROCK
CAO	2.57		WT%	RAPID_ROCK
NA2O	3.31		WT%	RAPID_ROCK
K2O	3.7		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