Sample WB8332

NavDat sample number 12616 · PHONOLITE

Sample

Sample ID	WB8332
Rock name	PHONOLITE
Rock type	PLUTONIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	29.7033
Longitude	-103.03
Location	chilled margin, West Black Hill
State / province	Texas

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
31		26	38

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	57.1		WT%	XRF
TIO2	0.18		WT%	XRF
AL2O3	17.8		WT%	XRF
FE2O3	3.23		WT%	XRF
FEO	3		WT%	XRF
MNO	0.22		WT%	XRF
MGO	0.18		WT%	XRF
CAO	2.12		WT%	XRF
NA2O	6.89		WT%	XRF
K2O	5.7		WT%	XRF
P2O5	0.12		WT%	XRF
CO2	0.3		WT%	XRF
TOTAL	96.54		WT%	XRF
RB	140		PPM	XRF
SR	30		PPM	XRF
ZR	820		PPM	XRF
SR87_SR86	0.7058			PER_COM

References

Dahl, David A; Lambert, David D (1986) Petrology of the Black Hills, Brewster County, Texas. Guidebook - Bureau of Economic Geology, University of Texas at Austin. 23; Pages 320-332. 1986. .