Sample 85-57b

NavDat sample number 130041 · ANDESITE

Sample

Sample ID	85-57b
Rock name	ANDESITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	41.352
Longitude	-122.689
Location	MT. SHASTA
State / province	CALIFORNIA

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
0.045		0.01	0.08

Analyses

WHOLE ROCK

Item	Value	Std. dev.	Unit	Method
SIO2	58.24		WT%	XRF
TIO2	0.71		WT%	XRF
AL2O3	16.21		WT%	XRF
FE2O3	1.61		WT%	XRF
FEO	3.68		WT%	XRF
MNO	0.11		WT%	XRF
MGO	4.96		WT%	XRF
CAO	7.83		WT%	XRF
NA2O	3.71		WT%	XRF
K2O	1.15		WT%	XRF
P2O5	0.24		WT%	XRF
LOI	0.78		WT%	XRF
NI	45		PPM	XRF
CR	113		PPM	XRF
V	141		PPM	XRF
ZN	56		PPM	XRF
RB	23		PPM	XRF
SR	864		PPM	XRF
BA	507		PPM	XRF
Y	14		PPM	XRF
ZR	113		PPM	XRF
SR87_SR86	0.703674			TIMS
ND143_ND144	0.51291			TIMS

References

Grove, T L; Parman, S W; Bowring, S A; Price, R C; Baker, M B (2002) The role of an H (sub 2) O-rich fluid component in the generation of primitive basaltic andesites and andesites from the Mt. Shasta region, N California. Contributions to Mineralogy and Petrology, vol.142, no.4, pp.375-396, Jan 2002