Sample HSP-101

NavDat sample number 29294 · BASALT

Sample

Sample ID	HSP-101
Rock name	BASALT
Rock type	VOLCANIC
Composition	MAFIC
Material	IGNEOUS
Comment	alkali olivine basalt; aa flow erupted from cinder cone; nearly aphyritic; rare phenos of olivine and plag; intersertal groundmass of plag, olivine, glass, rare pyroxene, and stable K-feldspar; contains numerous granitic xenoliths in various stages of dissaggregation near its vent; location given is for the vent

Latitude	43.525
Longitude	-115.566
Location	Western Snake River Plain
State / province	Idaho
Volcanic field	Boise River Group 2, Smith Creek basalt

Age (Ma)	Error	Min	Max	Geologic age	Dated by
0.35		0.2	0.5

Item	Value	Unit	Method
SIO2	48.2	WT%	EPMA
TIO2	2.44	WT%	EPMA
AL2O3	16	WT%	EPMA
FEOT	12.44	WT%	EPMA
MNO	0.2	WT%	EPMA
MGO	7.51	WT%	EPMA
CAO	8.35	WT%	EPMA
NA2O	2.5	WT%	EPMA
K2O	1.63	WT%	EPMA
P2O5	0.43	WT%	EPMA
TOTAL	99.77	WT%	EPMA
NB	26	PPM	XRF
ZR	153	PPM	XRF
Y	34	PPM	XRF
SR	327	PPM	XRF
RB	31	PPM	XRF
NI	113	PPM	XRF
CR	222	PPM	XRF
V	241	PPM	XRF
SC	22	PPM	XRF
BA	1372	PPM	XRF