Sample Table 2 Porphyry 4

NavDat sample number 9142 · MONZONITE

Sample

Sample ID	Table 2 Porphyry 4
Rock name	MONZONITE
Rock type	PLUTONIC
Composition	FELSIC
Material	IGNEOUS

Location

Latitude	40.33
Longitude	-106.25
Location	A.O. Porphyry
State / province	COLORADO

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
23.5		18.5	28.5

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	51.6		WT%	EPMA
AL2O3	3.83		WT%	EPMA
TIO2	0.45		WT%	EPMA
FEO	9.35		WT%	EPMA
MGO	17.8		WT%	EPMA
CAO	12.5		WT%	EPMA
MNO	0		WT%	EPMA
NA2O	0.69		WT%	EPMA
K2O	0.53		WT%	EPMA
TOTAL	96.8		WT%	EPMA

References

Karimpour, Mohammad Hassan (1982) Petrology, geochemistry, and genesis of the A.O. porphyry copper complex in Jackson and Grand counties, northwestern Colorado.