Sample MARB-2

NavDat sample number 58112 · RHYOLITE

Sample

Sample ID	MARB-2
Rock name	RHYOLITE
Rock type	VOLCANIC
Composition	FELSIC
Material	IGNEOUS

Location

Latitude	34.6683
Longitude	-115.641
State / province	CALIFORNIA

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
18		17	20

Analyses

WHOLE ROCK

Item	Value	Std. dev.	Unit	Method
SIO2	71.9		WT%	INAA
TIO2	0.37		WT%	INAA
AL2O3	15.3		WT%	INAA
NA2O	3.89		WT%	INAA
K2O	3.63		WT%	INAA
P2O5	0.07		WT%	INAA
BA	952		PPM	INAA
ND	33.97		PPM	INAA
RB	327		PPM	INAA
SR	464		PPM	INAA
SM	5.159		PPM	INAA
ND143_ND144	0.512273			TIMS
PB206_PB204	18.6			TIMS
PB207_PB204	15.61			TIMS
PB208_PB204	39.22			TIMS
SR87_SR86	0.70904			TIMS

References

Miller, Jonathan S; Glazner, Allen F; Farmer, G Lang; Suayah, IsmailB; Keith, Lori A (2000) A Sr, Nd, and Pb isotopic study of mantle domains and crustalstructure from Miocene volcanic rocks in the Mojave Desert,California. Geological Society of America Bulletin, vol.112, no.8, pp.1264-1279,Aug 2000 doi:10.1130/0016-7606(2000)112<1264:ASNAPI>2.0.CO;2