Sample 82-99

NavDat sample number 93528 · ANDESITE

Sample

Sample ID	82-99
Rock name	ANDESITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS
Collected by	Grove and others

Location

Latitude	41.4043
Longitude	-122.195
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	61.56		WT%	XRF
TIO2	0.6		WT%	XRF
AL2O3	16.74		WT%	XRF
FE2O3	1.55		WT%	XRF
FEO	2.89		WT%	XRF
MNO	0.08		WT%	XRF
MGO	3.37		WT%	XRF
CAO	5.94		WT%	XRF
NA2O	4.05		WT%	XRF
K2O	1.25		WT%	XRF
P2O5	0.15		WT%	XRF
LOI	1.7		WT%	XRF
SR	625		PPM	XRF
BA	416		PPM	XRF
CE	17		PPM	XRF
LA	14		PPM	XRF
GA	21		PPM	XRF
NB	4		PPM	XRF
RB	40		PPM	XRF
Y	20		PPM	XRF
ZR	136		PPM	XRF
ZN	63		PPM	XRF
CU	23		PPM	XRF
CR	52		PPM	XRF
NI	13		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