Sample CG-10

NavDat sample number 12066 · BASALTIC-ANDESITE

Sample

Sample ID	CG-10
Rock name	BASALTIC-ANDESITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	45.5367
Longitude	-122.228
State / province	_NULL_

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
21		17	25

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	53.48		WT%	XRF
TIO2	1.2		WT%	XRF
AL2O3	18.1		WT%	XRF
FEOT	8.25		WT%	XRF
MNO	0.2		WT%	XRF
MGO	5.63		WT%	XRF
CAO	9.33		WT%	XRF
NA2O	3.02		WT%	XRF
K2O	0.57		WT%	XRF
P2O5	0.22		WT%	XRF
TOTAL	99.8		WT%	XRF

References

Tolan, Terry Leo (1982) The stratigraphic relationships of the Columbia River Basalt Group in the lower Columbia River Gorge of Oregon and Washington.