Sample BJ82-55a

NavDat sample number 14944 · DIORITE

Sample

Sample ID	BJ82-55a
Rock name	DIORITE
Rock type	PLUTONIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	47.6622
Longitude	-120.829
State / province	Washington

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
94	1.5	93	96	Cretaceous

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	55.5		WT%	UNKNOWN
TIO2	0.9		WT%	UNKNOWN
AL2O3	15.3		WT%	UNKNOWN
FE2O3	9.2		WT%	UNKNOWN
MNO	0.12		WT%	UNKNOWN
MGO	7.8		WT%	UNKNOWN
CAO	8		WT%	UNKNOWN
NA2O	2.8		WT%	UNKNOWN
K2O	0.5		WT%	UNKNOWN
CR2O3	0.03		WT%	UNKNOWN

References

Kelemen, P B; Ghiorso, M S Assimilation of peridotite in zoned calc-alkaline plutonic complex; evidence from the Big Jim Complex, Washington Cascades. Contributions to Mineralogy and Petrology. 94; 1, Pages 12-28. 1986.