Sample ID: 99L-4
Georef Number: 2004-049375
Reference Title: Chemical analyses of Tertiary volcanic rocks, central San Juan Caldera complex, southwestern Colorado.
Reference Author: Lipman-Peter-W

Location Sample Detail Major Data? YES Trace Data? NO Isotope Data? NO

Age: 31.25 Min Age: 29.5 Max Age: 33 Geological Age: OLIGOCENE Age Method: AR_AR Material: IGNEOUS Type: VOLCANIC Composition: FELSIC Rock Name: DACITE

Rock Data

Reference	Technique	Material	SIO2	TIO2	AL2O3	FE2O3	MGO	CAO	NA2O	K2O	P2O5	MNO	LOI
1988-011206	XRF	WHOLE ROCK	66.57	0.6135472	15.849969	4.172121	1.3089007	3.313155	3.5585737	4.345959	0.28632203	0.07158051	2.21