Sample CD-4

NavDat sample number 57590 · BASALT

Sample

Sample ID	CD-4
Rock name	BASALT
Rock type	VOLCANIC
Composition	MAFIC
Material	IGNEOUS
Comment	[<1 m.y.] These basalts are characterized by their uniformly high Nd values 7.7 to 9.3 and generally low, but variable, 87Sr/86Sr ratios 0.7028 to 0.7040. From the southern half of the volcanic field.

Location

Latitude	35.1995
Longitude	-115.731
State / province	California
Volcanic field	Cima Volcanic Field

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
0.99		0.891	1.089

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	49.8		WT%	EPMA
AL2O3	15.4		WT%	EPMA
CAO	8.44		WT%	EPMA
MGO	7.57		WT%	EPMA
NA2O	3.25		WT%	EPMA
K2O	1.68		WT%	EPMA
FEOT	11		WT%	WET
MNO	0.1		WT%	EPMA
TIO2	2.7		WT%	EPMA
P2O5	0.13		WT%	EPMA
RB	29.4		PPM	UNKNOWN
SR	571		PPM	MS
SM	3.93		PPM	UNKNOWN
ND	12.5		PPM	MS
SR87_SR86	0.70282			MS
SR87_SR86_INITIAL	0.70282			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