Sample 1048

NavDat sample number 12254 · ANDESITE

Sample

Sample ID	1048
Rock name	ANDESITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS
Comment	Rawls Fm

Location

Latitude	29.55
Longitude	-103.833
Location	Wire Gap Road
State / province	Chihuahua

Age

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

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	57.01		WT%	XRF
TIO2	1.74		WT%	XRF
AL2O3	17.23		WT%	XRF
FE2O3	0.79		WT%	XRF
FEO	6.58		WT%	XRF
MNO	0.16		WT%	XRF
MGO	1.89		WT%	XRF
CAO	4.63		WT%	XRF
NA2O	5.23		WT%	XRF
K2O	4.07		WT%	XRF
P2O5	0.65		WT%	XRF
TOTAL	99.99		WT%	XRF
RB	103		PPM	MS-ID
SR	530		PPM	MS-ID
Y	59		PPM	MS-ID
ZR	713		PPM	MS-ID
NB	123		PPM	MS-ID

References

Cameron, Kenneth L; Cameron, Maryellen (1986) Geochemistry of quartz-normative igneous rocks from the Chinati Mountains and Terlingua areas, West Texas; a comparison with Cenozoic volcanic rocks from Chihuahua and Baja California Sur, Mexico. Guidebook - Bureau of Economic Geology, University of Texas at Austin. 23; Pages 143-163. 1986. .