Sample ID: DS87-095
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: 26.75 Min Age: 26 Max Age: 27.5 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	TH	Y
2003-024675	XRF	WHOLE ROCK	20	162	13	21	106	306	6	22

Element Normalization
pyrolite OIB

	Th	Nb	Pb	Rb	Zr	Sr	Y	Zn
SAMPLE VALUE	6	13	21	106	162	306	22	20
	PPM	PPM	PPM	PPM	PPM	PPM	PPM	PPM
REF STANDARD	79.5	658	150	0.6	10.5	19.9	4.3	55
	PPB	PPB	PPB	PPM	PPM	PPM	PPM	PPM