Sample 82-93

NavDat sample number 93525 · ANDESITE

Sample

Sample ID	82-93
Rock name	ANDESITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS
Collected by	Grove and others

Location

Latitude	41.4715
Longitude	-122.197
Location	Misery Hill cone
State / province	California

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
0.05		0.01	0.08

Analyses

Whole Rock

Item	Value	Std. dev.	Unit	Method
SIO2	62.15		WT%	XRF
TIO2	0.64		WT%	XRF
AL2O3	17.23		WT%	XRF
FE2O3	0.75		WT%	XRF
FEO	3.54		WT%	XRF
MNO	0.08		WT%	XRF
MGO	3.1		WT%	XRF
CAO	5.51		WT%	XRF
NA2O	3.98		WT%	XRF
K2O	1.41		WT%	XRF
P2O5	0.18		WT%	XRF
LOI	1.06		WT%	XRF
SR	1293		PPM	XRF
BA	414		PPM	XRF
CE	33		PPM	XRF
LA	18		PPM	XRF
GA	26		PPM	XRF
NB	2		PPM	XRF
RB	22		PPM	XRF
Y	15		PPM	XRF
ZR	164		PPM	XRF
ZN	56		PPM	XRF
CU	46		PPM	XRF
CR	30		PPM	XRF
NI	24		PPM	XRF

References

Grove, Timothy L; Baker, Michael B; Price, Richard C; Parman, StephenW; Elkins-Tanton, Linda T; Chatterjee, Nilanjan; Muentener, Othmar (2005) Magnesian andesite and dacite lavas from Mt. Shasta, NorthernCalifornia; products of fractional crystallization of H (sub 2) O-richmantle melts. Contributions to Mineralogy and Petrology, vol.148, no.5, pp.542-565,Jan 2005 doi:10.1007/s00410-004-0619-6