Sample ID: 67L-13
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? YES Isotope Data? NO

Age: 26.5 Min Age: 25.9 Max Age: 27.1 Geological Age: OLIGOCENE Age Method: REG-COR Material: IGNEOUS Type: VOLCANIC Composition: FELSIC Rock Name: RHYOLITE

Rock Data

Reference	Technique	Material	SIO2	TIO2	AL2O3	FE2O3	MGO	CAO	NA2O	K2O	P2O5	MNO	LOI	ZN	ZR	NB	PB	RB	SR	Y
1988-011206	XRF	WHOLE ROCK	71.63	0.28090194	15.449608	1.8559593	0.29093418	1.8057983	3.8122408	4.4141736	0.15048319	0.070225485	0.32
2003-024675	XRF	WHOLE ROCK												55	261	18	65	146	344	23

Element Normalization
pyrolite OIB

	Nb	Pb	Rb	Zr	Sr	Y	Zn
SAMPLE VALUE	18	65	146	261	344	23	55
	PPM	PPM	PPM	PPM	PPM	PPM	PPM
REF STANDARD	658	150	0.6	10.5	19.9	4.3	55
	PPB	PPB	PPM	PPM	PPM	PPM	PPM