Sample 10

NavDat sample number 17539 · ANDESITE

Sample

Sample ID	10
Rock name	ANDESITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS
Comment	Maximum and minimum ages given are approximations based on average error of previous K-Ar dating.

Location

Latitude	32.738
Longitude	-107.936
Location	Rubio Peak
State / province	New Mexico

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
37.2		34.9	39.5

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	58.1		WT%	EDXRF
TIO2	1		WT%	EDXRF
AL2O3	14.5		WT%	EDXRF
FEO	6.71		WT%	EDXRF
MGO	2		WT%	EDXRF
CAO	5.35		WT%	EDXRF
NA2O	3		WT%	EDXRF
K2O	2.8		WT%	EDXRF
TOTAL	93.46		WT%	EDXRF
BA	1505		PPM	EDXRF
CR	34		PPM	EDXRF
NI	42		PPM	EDXRF
RB	42		PPM	EDXRF
SR	720		PPM	EDXRF
V	95		PPM	EDXRF
Y	18		PPM	EDXRF
ZN	80		PPM	EDXRF
ZR	187		PPM	EDXRF

References

Bornhorst, Theodore Joseph (1980) Major- and trace-element geochemistry and mineralogy of upper Eocene to Quaternary volcanic rocks of the Mogollon-Datil volcanic field, southwestern New Mexico.