Sample 83-55

NavDat sample number 130053 · ANDESITE

Sample

Sample ID	83-55
Rock name	ANDESITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	41.4107
Longitude	-122.69
Location	MT. SHASTA
State / province	CALIFORNIA

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
0.0055		0.002	0.009

Analyses

WHOLE ROCK

Item	Value	Std. dev.	Unit	Method
SIO2	62.44		WT%	XRF
TIO2	0.63		WT%	XRF
AL2O3	16.36		WT%	XRF
FE2O3	2.11		WT%	XRF
FEO	2.58		WT%	XRF
MNO	0.08		WT%	XRF
MGO	3.52		WT%	XRF
CAO	5.89		WT%	XRF
NA2O	4.32		WT%	XRF
K2O	1.41		WT%	XRF
P2O5	0.14		WT%	XRF
LOI	0.61		WT%	XRF
NI	18		PPM	XRF
CR	63		PPM	XRF
V	103		PPM	XRF
ZN	72		PPM	XRF
RB	36		PPM	XRF
SR	668		PPM	XRF
BA	392		PPM	XRF
Y	11		PPM	XRF
ZR	115		PPM	XRF
SR87_SR86	0.703281			TIMS
ND143_ND144	0.512873			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