Sample A-481

NavDat sample number 32301 · GRANODIORITE

Sample

Sample ID	A-481
Rock name	GRANODIORITE
Rock type	PLUTONIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	37.2833
Longitude	-118.852
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	62.6		WT%	RAPID_ROCK
TIO2	0.64		WT%	RAPID_ROCK
AL2O3	16.5		WT%	RAPID_ROCK
FE2O3	1.5		WT%	RAPID_ROCK
FEO	3.7		WT%	RAPID_ROCK
MNO	0.09		WT%	RAPID_ROCK
MGO	2.4		WT%	RAPID_ROCK
CAO	5		WT%	RAPID_ROCK
NA2O	3.4		WT%	RAPID_ROCK
K2O	2.9		WT%	RAPID_ROCK
P2O5	0.2		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