Sample MK98420

NavDat sample number 16262 · GABBRO

Sample

Sample ID	MK98420
Rock name	GABBRO
Rock type	PLUTONIC
Composition	MAFIC
Material	IGNEOUS

Location

Latitude	46.3963
Longitude	-121.671
State / province	Washington

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
27		19	35

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	52.09		WT%	XRF
TIO2	1.02		WT%	XRF
AL2O3	21.01		WT%	XRF
FEOT	9.2		WT%	XRF
MNO	0.16		WT%	XRF
MGO	4.56		WT%	XRF
CAO	10.84		WT%	XRF
NA2O	0.55		WT%	XRF
K2O	0.42		WT%	XRF
P2O5	0.15		WT%	XRF
TOTAL	100.01		WT%	XRF

References

Korosec-Michael-A (compiler) (1987) Geologic map of the Mount Adams Quadrangle, Washington. Open-File Report - Washington (State). Division of Geology and Earth Resources. 1987.