Sample MAR227

NavDat sample number 11239 · ANDESITE

Sample

Sample ID	MAR227
Rock name	ANDESITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	39.3183
Longitude	-120.063
Location	Coal Valley Formation Lavas
State / province	California

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
5.7		5.13	6.27

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	63.64		WT%	XRF
TIO2	0.75		WT%	XRF
AL2O3	16.43		WT%	XRF
FEO	4.56		WT%	XRF
MNO	0.075		WT%	XRF
MGO	1.75		WT%	XRF
CAO	5.48		WT%	XRF
NA2O	4.02		WT%	XRF
K2O	2.66		WT%	XRF
P2O5	0.28		WT%	XRF
TOTAL	99.63		WT%	XRF
V	177		PPM	XRF
RB	47		PPM	XRF
SR	879		PPM	XRF
Y	18		PPM	XRF
ZR	180		PPM	XRF
NB	11		PPM	XRF
BA	1248		PPM	XRF
LA	18		PPM	XRF
CE	40		PPM	XRF

References

Latham, Jr., Thomas (1985) Stratigraphy, structure, and geochemistry of Plio-Pleistocene volcanic rocks of the western basin and range province, near Truckee, California.