Sample HSP-132

NavDat sample number 29322 · BASALT

Sample

Sample ID	HSP-132
Rock name	BASALT
Rock type	VOLCANIC
Composition	MAFIC
Material	IGNEOUS
Comment	alkali olivine basalt; microporphyritic with microphenos of olivine and plag in fine-grained, subophitic to intersertal matrix of plag, pyroxene, glass, and opaques; erupted from same cinder cone as unit 1; location given is for vent

Latitude	43.509
Longitude	-115.505
Location	Western Snake River Plain
State / province	Idaho
Volcanic field	Boise River Group 2, Smith Praire basalt, unit 2

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

Item	Value	Unit	Method
SIO2	48.6	WT%	EPMA
TIO2	1.88	WT%	EPMA
AL2O3	16.7	WT%	EPMA
FEOT	10.52	WT%	EPMA
MNO	0.18	WT%	EPMA
MGO	8.18	WT%	EPMA
CAO	9.83	WT%	EPMA
NA2O	2.84	WT%	EPMA
K2O	1.45	WT%	EPMA
P2O5	0.41	WT%	EPMA
TOTAL	100.53	WT%	EPMA
NB	28	PPM	XRF
ZR	158	PPM	XRF
Y	24	PPM	XRF
SR	502	PPM	XRF
RB	37	PPM	XRF
NI	118	PPM	XRF
CR	263	PPM	XRF
V	217	PPM	XRF
SC	26	PPM	XRF
BA	496	PPM	XRF