Sample LE-1008

NavDat sample number 32277 · GRANODIORITE

Sample

Sample ID	LE-1008
Rock name	GRANODIORITE
Rock type	PLUTONIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	37.8383
Longitude	-119.763
Location	Hetch Hetchy
State / province	California
Pluton	Sentinel Granodiorite

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
95		85.5	104.5

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	64.69		WT%	RAPID_ROCK
TIO2	0.72		WT%	RAPID_ROCK
AL2O3	16.86		WT%	RAPID_ROCK
FE2O3	1.92		WT%	RAPID_ROCK
FEO	2.14		WT%	RAPID_ROCK
MNO	0.071		WT%	RAPID_ROCK
MGO	1.54		WT%	RAPID_ROCK
CAO	5		WT%	RAPID_ROCK
NA2O	4		WT%	RAPID_ROCK
K2O	2.06		WT%	RAPID_ROCK
P2O5	0.21		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