Sample 202710

NavDat sample number 36843 · DIORITE

Sample

Sample ID	202710
Rock name	DIORITE
Rock type	PLUTONIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	46.0244
Longitude	-110.261
Location	Big Timber Stock, Crazy Mountains
State / province	Montana

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
49.29		49.13	49.45

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	53.3		WT%	XRF
AL2O3	15.35		WT%	XRF
FE2O3	0.95		WT%	XRF
FEO	7.73		WT%	XRF
MGO	6.53		WT%	XRF
CAO	7.51		WT%	XRF
NA2O	3.58		WT%	XRF
K2O	2.56		WT%	XRF
TIO2	1.8		WT%	XRF
P2O5	0.55		WT%	XRF
MNO	0.14		WT%	XRF
RB	44		PPM	EDXRF
SR	896		PPM	EDXRF
Y	31		PPM	EDXRF
ZR	79		PPM	EDXRF
NB	28		PPM	EDXRF
BA	1166		PPM	EDXRF
TOTAL	100		WT%	XRF

References

du Bray, Edward A; Harlan, S S (1996) The Eocene Big Timber Stock, south-central Montana; development ofextensive compositional variation in an arc-related intrusion byside-wall crystallization and cumulate glomerocryst remixing. Geological Society of America Bulletin, vol.108, no.11, pp.1404-1424,Nov 1996 doi:10.1130/0016-7606(1996)108<1404:TEBTSS>2.3.CO;2