Sample 82-72a

NavDat sample number 88319 · BASALT

Sample

Sample ID	82-72a
Rock name	BASALT
Rock type	VOLCANIC
Composition	MAFIC
Material	IGNEOUS
Collected by	Baker and others

Location

Latitude	41.3079
Longitude	-121.575
State / province	California
Volcanic field	Giant Crater Lava Field

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
0.0106		0.00954	0.01166

Analyses

Whole Rock

Item	Value	Std. dev.	Unit	Method
SIO2	49.9		WT%	XRF
TIO2	2.24		WT%	XRF
AL2O3	13.6		WT%	XRF
FE2O3	14.9		WT%	XRF
MNO	0.25		WT%	XRF
MGO	5.13		WT%	XRF
CAO	10.1		WT%	XRF
NA2O	3.97		WT%	XRF
K2O	0.32		WT%	XRF
P2O5	0.2		WT%	XRF
Y	52		PPM	XRF
SR	174		PPM	XRF
RB	5		PPM	XRF
NB	3		PPM	XRF
ZR	149		PPM	XRF
NI	56		PPM	XRF
BA	92		PPM	XRF
CE	16.1		PPM	ICPMS
ND	14.4		PPM	ICPMS
SM	5.18		PPM	ICPMS
EU	1.89		PPM	ICPMS
GD	7.66		PPM	ICPMS
DY	10.1		PPM	ICPMS
ER	6.77		PPM	ICPMS
YB	6.6		PPM	ICPMS

References

Baker, Michael B; Grove, Timothy L; Kinzler, R J; Donnelly-Nolan,Julie M; Wandless, G A (1991) Origin of compositional zonation (high-alumina basalt to basalticandesite) in the Giant Crater lava field, Medicine Lake Volcano,Northern California. Journal of Geophysical Research, vol. 96, no. B13, pp.21,819-21,842,10 Dec 1991 doi:10.1029/91JB01945