Sample 202335

NavDat sample number 36828 · DIORITE

Sample

Sample ID	202335
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
49.33		49.22	49.44

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	51.97		WT%	XRF
AL2O3	13.76		WT%	XRF
FE2O3	1.19		WT%	XRF
FEO	9.66		WT%	XRF
MGO	7.99		WT%	XRF
CAO	8.82		WT%	XRF
NA2O	2.97		WT%	XRF
K2O	1.57		WT%	XRF
TIO2	1.57		WT%	XRF
P2O5	0.34		WT%	XRF
MNO	0.17		WT%	XRF
RB	31		PPM	EDXRF
SR	626		PPM	EDXRF
Y	24		PPM	EDXRF
ZR	101		PPM	EDXRF
NB	13		PPM	EDXRF
BA	797		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