Sample 598

NavDat sample number 18021 · ANDESITE

Sample

Sample ID	598
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	33.5814
Longitude	-108.314
Location	O-Bar-O mountain
State / province	New Mexico

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
22		20	25

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	58.54		WT%	EDXRF
TIO2	1.02		WT%	EDXRF
AL2O3	15.5		WT%	EDXRF
FEO	6.58		WT%	EDXRF
MGO	2.5		WT%	EDXRF
CAO	5.18		WT%	EDXRF
NA2O	3.41		WT%	EDXRF
K2O	3.06		WT%	EDXRF
P2O5	0.4		WT%	EDXRF
BA	1526		PPM	EDXRF
CR	34		PPM	EDXRF
NI	42		PPM	EDXRF
RB	81		PPM	EDXRF
SR	578		PPM	EDXRF
V	102		PPM	EDXRF
Y	34		PPM	EDXRF
ZN	81		PPM	EDXRF
ZR	291		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.