Sample SCV 16

NavDat sample number 12555 · BASALT

Sample

Sample ID	SCV 16
Rock name	BASALT
Rock type	VOLCANIC
Composition	MAFIC
Material	IGNEOUS
Comment	flow of olivine phyric basalt near base of Salmon Creek Volcanics section; phenocrysts of olivine and Fe-Ti oxide in pilotaxitic to trachytic matrix of plagioclase laths and interstitial cpx, oxide, and olivine

Location

Latitude	43.2875
Longitude	-116.822
Location	Owyhee Mountains
State / province	Idaho
Volcanic field	Salmon Creek Volcanics

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
30.9		30.6	31.2

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	48.31		WT%	ICP
TIO2	2.07		WT%	ICP
AL2O3	15.47		WT%	ICP
FE2O3	10.93		WT%	ICP
MNO	0.15		WT%	ICP
MGO	8.02		WT%	ICP
CAO	8.83		WT%	ICP
NA2O	3.88		WT%	ICP
K2O	1.4		WT%	ICP
P2O5	0.95		WT%	ICP
SR	1559		PPM	ICP
BA	968		PPM	ICP
Y	19		PPM	ICP
ZR	178		PPM	ICP
SC	20.5		PPM	ICP
CO	39		PPM	ICP
V	250		PPM	ICP
NI	99		PPM	ICP
CR	206		PPM	ICP

References

Norman, Marc D; McElwee, Kris R; Duncan, Robert A; Leeman, William P (1986) K-Ar ages of Oligocene Salmon Creek volcanics, Owyhee Mountains, Idaho. Isochron/West, vol.46, pp.9-14, Aug 1986