Sample CD-8

NavDat sample number 57612 · BASALT

Sample

Sample ID	CD-8
Rock name	BASALT
Rock type	VOLCANIC
Composition	MAFIC
Material	IGNEOUS
Comment	[6.5 - 7.6 m.y.] This group consists of weathered basalt flows from the southeast corner of the field and represents the oldest basalts sampled.

Location

Latitude	35.2171
Longitude	-115.705
State / province	California
Volcanic field	Cima Volcanic Field

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
6.5		5.85	7.15

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	48.8		WT%	EPMA
AL2O3	14.1		WT%	EPMA
CAO	10.84		WT%	EPMA
MGO	9.37		WT%	EPMA
NA2O	2.56		WT%	EPMA
K2O	1.61		WT%	EPMA
FEOT	9.06		WT%	WET
MNO	0.12		WT%	EPMA
TIO2	3.09		WT%	EPMA
P2O5	0.49		WT%	EPMA
RB	33.6		PPM	UNKNOWN
SR	623		PPM	MS
SM	5.87		PPM	UNKNOWN
ND	39.6		PPM	MS
SR87_SR86	0.70352			MS
ND143_ND144	0.512968			MS
SR87_SR86_INITIAL	0.7035			MS

References

Farmer, G L; Glazner, A F; Wilshire, H G; Wooden, J L; Pickthorn, W J; Katz, M (1995) Origin of late Cenozoic basalts at the Cima volcanic field, Mojave Desert, California. Journal of Geophysical Research, B, Solid Earth and Planets, vol.100, no.5, pp.8399-8415, 10 May 1995 doi:10.1029/95JB00070