Sample 34

NavDat sample number 17557 · BASALT

Sample

Sample ID	34
Rock name	BASALT
Rock type	VOLCANIC
Composition	MAFIC
Material	IGNEOUS
Comment	Maximum and minimum ages given are approximations based on average error of previous K-Ar dating.

Location

Latitude	34.5
Longitude	-107.5
Location	Spears formation
State / province	New Mexico

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
37.1		35.6	38.6

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	51.17		WT%	EDXRF
TIO2	1.2		WT%	EDXRF
AL2O3	17.4		WT%	EDXRF
FEO	0.42		WT%	EDXRF
FE2O3	6.23		WT%	EDXRF
MNO	0.11		WT%	EDXRF
MGO	1.48		WT%	EDXRF
CAO	7.2		WT%	EDXRF
NA2O	4.34		WT%	EDXRF
K2O	4.4		WT%	EDXRF
P2O5	0.76		WT%	EDXRF
H2O_PLUS	4.31		WT%	EDXRF
TOTAL	99.95		WT%	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.