Sample 25-13

NavDat sample number 58123 · RHYODACITE

Sample

Sample ID	25-13
Rock name	RHYODACITE
Rock type	VOLCANIC
Composition	FELSIC
Material	IGNEOUS

Location

Latitude	34.7868
Longitude	-116.302
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	68.8		WT%	INAA
TIO2	0.44		WT%	INAA
AL2O3	16.1		WT%	INAA
NA2O	4.18		WT%	INAA
K2O	3.64		WT%	INAA
P2O5	0.09		WT%	INAA
BA	808		PPM	INAA
RB	116		PPM	INAA
SR	554		PPM	INAA
PB206_PB204	19.07			TIMS
PB207_PB204	15.64			TIMS
PB208_PB204	38.5			TIMS
SR87_SR86	0.70723			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