Sample SSP-46

NavDat sample number 29293 · BASALT

Sample

Sample ID	SSP-46
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	46.3	WT%	EPMA
TIO2	2.37	WT%	EPMA
AL2O3	15.8	WT%	EPMA
FEOT	12.58	WT%	EPMA
MNO	0.18	WT%	EPMA
MGO	7.47	WT%	EPMA
CAO	9.09	WT%	EPMA
NA2O	2.55	WT%	EPMA
K2O	1.58	WT%	EPMA
P2O5	0.39	WT%	EPMA
TOTAL	98.22	WT%	EPMA
NB	27	PPM	XRF
ZR	142	PPM	XRF
Y	33	PPM	XRF
SR	360	PPM	XRF
RB	33	PPM	XRF
NI	114	PPM	XRF
CR	247	PPM	XRF
V	255	PPM	XRF
SC	29	PPM	XRF
BA	1035	PPM	XRF