Sample 270

NavDat sample number 22674 · THOLEIITE

Sample

Sample ID	270
Rock name	THOLEIITE
Rock type	VOLCANIC
Composition	MAFIC
Material	IGNEOUS

Location

Latitude	42.9
Longitude	-117.97
Location	Oregon Northern Basin and Range
State / province	Oregon

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
2.66		0.01	5.3

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	47.72		WT%	EPMA
TIO2	0.99		WT%	EPMA
AL2O3	18.2		WT%	EPMA
FEO	9.95		WT%	EPMA
MNO	0.18		WT%	EPMA
MGO	8.84		WT%	EPMA
CAO	10.91		WT%	EPMA
NA2O	2.59		WT%	EPMA
K2O	0.25		WT%	EPMA
P2O5	0.1		WT%	EPMA
TOTAL	100.02		WT%	EPMA

References

Draper, David S (1991) Late Cenozoic bimodal magmatism in the northern Basin and RangeProvince of southeastern Oregon. Journal of Volcanology and Geothermal Research, vol.47, no.3-4,pp.299-328, Sep 1991 doi:10.1016/0377-0273(91)90006-L