Sample ID: Ds466
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? NO Trace Data? YES Isotope Data? NO

Age: 27 Min Age: 26.9 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	ZN	ZR	NB	PB	RB	SR	Y
2003-024675	XRF	WHOLE ROCK	22	121	23	42	165	75	17

Element Normalization
pyrolite OIB

	Nb	Pb	Rb	Zr	Sr	Y	Zn
SAMPLE VALUE	23	42	165	121	75	17	22
	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