Sample Tm.4

NavDat sample number 33451 · TRACHYBASALT

Sample

Sample ID	Tm.4
Rock name	TRACHYBASALT
Rock type	VOLCANIC
Composition	MAFIC
Material	IGNEOUS

Location

Latitude	39.78
Longitude	-105.22
Location	Table Mountain
State / province	COLORADO

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
63		60	66

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	49.7		WT%	UNKNOWN
AL2O3	18.1		WT%	UNKNOWN
TIO2	0.85		WT%	UNKNOWN
FE2O3	2.6		WT%	UNKNOWN
FEO	6.2		WT%	UNKNOWN
MNO	0.13		WT%	UNKNOWN
CAO	8.2		WT%	UNKNOWN
MGO	5.7		WT%	UNKNOWN
K2O	3.9		WT%	UNKNOWN
NA2O	3		WT%	UNKNOWN
P2O5	0.8		WT%	UNKNOWN
H2O_PLUS	0.9		WT%	UNKNOWN
TOTAL	100.1		WT%	UNKNOWN

References

Larson, Edwin E; Drexler, John W Early Laramide mafic to intermediate volcanism, Front Range, Colorado. Colorado School of Mines Quarterly, vol.83, no.2, pp.41-52, 1988