Sample CHM-26

NavDat sample number 127329 · GRANODIORITE

Sample

Sample ID	CHM-26
Rock name	GRANODIORITE
Rock type	PLUTONIC
Composition	INTERMEDIATE
Material	IGNEOUS
Comment	Chalk Mountain pluton

Location

Latitude	39.3194
Longitude	-118.124
State / province	Nevada

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
26		23.4	28.6

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	69.51		WT%	WDXRF
AL2O3	14.87		WT%	WDXRF
FEO	0		WT%	WDXRF
FE2O3	3.07		WT%	WDXRF
MGO	1.19		WT%	WDXRF
CAO	2.89		WT%	WDXRF
NA2O	3.75		WT%	WDXRF
K2O	4.08		WT%	WDXRF
TIO2	0.42		WT%	WDXRF
P2O5	0.16		WT%	WDXRF
MNO	0.05		WT%	WDXRF
LOI	0.6		WT%	WDXRF
TOTAL	98.84		WT%	WDXRF

References

John David A. Chemical analyses of granitic rocks in the Reno 1 degrees by 2 degrees Quadrangle and in the northern Pine Nut Mountains, west-central Nevada. John David A Chemical analyses of granitic rocks in the Reno 1 degrees by 2 degrees Quadrangle and in the northern Pine Nut Mountains, west-central Nevada. [Serial, Report] Open-File Report - U. S. Geological Survey. 1992. Report # OF, 92-0246.