Sample 6-91-1

NavDat sample number 32286 · GRANODIORITE

Sample

Sample ID	6-91-1
Rock name	GRANODIORITE
Rock type	PLUTONIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	37.1817
Longitude	-118.645
Location	John Muir
State / province	California
Pluton	Lamarck Granodiorite

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
90		81	99

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	66.92		WT%	RAPID_ROCK
TIO2	0.47		WT%	RAPID_ROCK
AL2O3	15.19		WT%	RAPID_ROCK
FE2O3	1.45		WT%	RAPID_ROCK
FEO	2.52		WT%	RAPID_ROCK
MNO	0.08		WT%	RAPID_ROCK
MGO	1.74		WT%	RAPID_ROCK
CAO	3.79		WT%	RAPID_ROCK
NA2O	3.16		WT%	RAPID_ROCK
K2O	3.82		WT%	RAPID_ROCK
P2O5	0.18		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