Sample 85-55

NavDat sample number 130040 · ANDESITE

Sample

Sample ID	85-55
Rock name	ANDESITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	41.3435
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	57.74		WT%	XRF
TIO2	0.75		WT%	XRF
AL2O3	16.08		WT%	XRF
FE2O3	1.23		WT%	XRF
FEO	4.23		WT%	XRF
MNO	0.11		WT%	XRF
MGO	5.28		WT%	XRF
CAO	8.65		WT%	XRF
NA2O	3.77		WT%	XRF
K2O	1.3		WT%	XRF
P2O5	0.29		WT%	XRF
LOI	1.03		WT%	XRF
NI	47		PPM	XRF
CR	122		PPM	XRF
V	161		PPM	XRF
ZN	58		PPM	XRF
RB	21		PPM	XRF
SR	973		PPM	XRF
BA	586		PPM	XRF
Y	15		PPM	XRF
ZR	121		PPM	XRF
SR87_SR86	0.70376			TIMS
ND143_ND144	0.512905			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