Sample ID: DS87-070
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: PYROCLASTIC FLOW

Rock Data

Reference	Technique	Material	ZN	ZR	NB	PB	RB	SR	TH	Y
2003-024675	XRF	WHOLE ROCK	52	170	14	8	97	768	21	20

Element Normalization
pyrolite OIB

	Th	Nb	Pb	Rb	Zr	Sr	Y	Zn
SAMPLE VALUE	21	14	8	97	170	768	20	52
	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