Sample LC93-1970

NavDat sample number 61466 · BASALT

Sample

Sample ID	LC93-1970
Rock name	BASALT
Rock type	VOLCANIC
Composition	MAFIC
Material	IGNEOUS
Collected by	Clynne
Comment	Stover Mountain

Location

Latitude	40.2845
Longitude	-121.265
State / province	California
Volcanic field	Regional Volcanic Rocks, South and East of Lassen Volcanic Center

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
2.65		0	5.3

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	49.27		WT%	WDXRF
AL2O3	18.85		WT%	WDXRF
FE2O3	1.53		WT%	WDXRF
FEO	7.78		WT%	WDXRF
FEOT	9.15		WT%	WDXRF
MGO	7.92		WT%	WDXRF
CAO	10.55		WT%	WDXRF
NA2O	2.67		WT%	WDXRF
K2O	0.16		WT%	WDXRF
TIO2	0.99		WT%	WDXRF
P2O5	0.11		WT%	WDXRF
MNO	0.16		WT%	WDXRF
LOI	1.36		WT%	LOI
TOTAL	98.47		WT%	WDXRF
MG_NUMBER	64.5			WDXRF
RB	0		PPM	EDXRF
SR	271		PPM	EDXRF
Y	26		PPM	EDXRF
ZR	79		PPM	EDXRF

References

Clynne, M.A., Muffler, L.J.P., Siems, D.F., Taggert Jr., J.E., Bruggman, P. (2008) Major and EDXRF trace element chemical analyses of volcanic rocks from Lassen Volcanic National Park and vicinity, California. Open-File Report - U. S. Geological Survey. 2008. Report # OF. 2008-1091