Sample HSP-100

NavDat sample number 29289 · BASALT

Sample

Sample ID	HSP-100
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	WT%	EPMA
TIO2	2.25	WT%	EPMA
AL2O3	15.8	WT%	EPMA
FEOT	12.13	WT%	EPMA
MNO	0.15	WT%	EPMA
MGO	7.83	WT%	EPMA
CAO	8.88	WT%	EPMA
NA2O	2.67	WT%	EPMA
K2O	1.69	WT%	EPMA
P2O5	0.39	WT%	EPMA
TOTAL	99.8	WT%	EPMA
NB	26	PPM	XRF
ZR	147	PPM	XRF
Y	35	PPM	XRF
SR	359	PPM	XRF
RB	44	PPM	XRF
NI	105	PPM	XRF
CR	227	PPM	XRF
V	225	PPM	XRF
SC	20	PPM	XRF
BA	1187	PPM	XRF
LA	16.8	PPM	INAA
CE	36.7	PPM	INAA
ND	22.6	PPM	INAA
SM	5.22	PPM	INAA
EU	1.79	PPM	INAA
TB	0.76	PPM	INAA
YB	2.58	PPM	INAA
LU	0.37	PPM	INAA
HF	3.7	PPM	INAA
TA	1.53	PPM	INAA
U	0.49	PPM	INAA
TH	1.26	PPM	INAA
D18O	5.79	PERMILL	MS