Sample 13-22

NavDat sample number 58120 · ANDESITE

Sample

Sample ID	13-22
Rock name	ANDESITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	34.7724
Longitude	-116.243
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	53.1		WT%	INAA
TIO2	2.25		WT%	INAA
AL2O3	16.2		WT%	INAA
NA2O	3.83		WT%	INAA
K2O	2.09		WT%	INAA
P2O5	0.5		WT%	INAA
BA	583		PPM	INAA
ND	28.54		PPM	INAA
RB	54		PPM	INAA
SR	523		PPM	INAA
SM	6.404		PPM	INAA
ND143_ND144	0.512658			TIMS
PB206_PB204	19.19			TIMS
PB207_PB204	15.68			TIMS
PB208_PB204	39.2			TIMS
SR87_SR86	0.70589			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