Sample 42

NavDat sample number 22621 · THOLEIITE

Sample

Sample ID	42
Rock name	THOLEIITE
Rock type	VOLCANIC
Composition	MAFIC
Material	IGNEOUS

Location

Latitude	43.13
Longitude	-117.47
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	46.91		WT%	EPMA
TIO2	1.49		WT%	EPMA
AL2O3	17.5		WT%	EPMA
FEO	10.527		WT%	EPMA
MNO	0.2		WT%	EPMA
MGO	9.39		WT%	EPMA
CAO	10.69		WT%	EPMA
NA2O	2.45		WT%	EPMA
K2O	0.28		WT%	EPMA
P2O5	0.29		WT%	EPMA
H2O	0		WT%	EPMA
H2O_MINUS	0		WT%	EPMA
TOTAL	99.727		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