Sample 269

NavDat sample number 22673 · THOLEIITE

Sample

Sample ID	269
Rock name	THOLEIITE
Rock type	VOLCANIC
Composition	MAFIC
Material	IGNEOUS

Location

Latitude	42.78
Longitude	-117.83
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	46.81		WT%	EPMA
TIO2	1.01		WT%	EPMA
AL2O3	17.71		WT%	EPMA
FEO	10.268		WT%	EPMA
MNO	0.19		WT%	EPMA
MGO	9.63		WT%	EPMA
CAO	11.51		WT%	EPMA
NA2O	2.53		WT%	EPMA
K2O	0.05		WT%	EPMA
P2O5	0.05		WT%	EPMA
H2O	0		WT%	EPMA
TOTAL	100		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