Sample HSP-47

NavDat sample number 29302 · BASALT

Sample

Sample ID	HSP-47
Rock name	BASALT
Rock type	VOLCANIC
Composition	MAFIC
Material	IGNEOUS
Comment	alkali olivine basalt; porphyritic with large corroded phenos of plag and smaller euhedral phenos of olivine; intersertal groundmass of plag, olivine, glass, opaques, and minor sanidine; location given is for the vent

Latitude	43.521
Longitude	-115.512
Location	Western Snake River Plain
State / province	Idaho
Volcanic field	Boise River Group 2, Smith Praire basalt, unit 1

Age (Ma)	Error	Min	Max	Geologic age	Dated by
0.26		0.1	0.42

Item	Value	Unit	Method
SIO2	48.4	WT%	EPMA
TIO2	1.84	WT%	EPMA
AL2O3	16.6	WT%	EPMA
FEOT	11.3	WT%	EPMA
MNO	0.11	WT%	EPMA
MGO	7.52	WT%	EPMA
CAO	9.38	WT%	EPMA
NA2O	2.85	WT%	EPMA
K2O	1.41	WT%	EPMA
P2O5	0.34	WT%	EPMA
TOTAL	99.71	WT%	EPMA
NB	24	PPM	XRF
ZR	148	PPM	XRF
Y	22	PPM	XRF
SR	409	PPM	XRF
RB	32	PPM	XRF
NI	89	PPM	XRF
CR	123	PPM	XRF
V	202	PPM	XRF
SC	25	PPM	XRF
BA	602	PPM	XRF