Sample ID: 228
Georef Number: 2007-002412
Reference Title: Rhyodacites of Kulshan Caldera, north Cascades of Washington;post-caldera lavas that span the Jaramillo
Reference Author: Hildreth, Wes; Lanphere, Marvin A; Champion, Duane E; Fierstein, Judy

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

Age: 1.127 Min Age: 1.116 Max Age: 1.138 Geological Age: PLEISTOCENE Age Method: AR_AR Material: IGNEOUS Type: VOLCANIC Composition: FELSIC Rock Name: RHYODACITE

Rock Data

Reference	Technique	Material	SIO2	TIO2	AL2O3	FEOT	MGO	CAO	NA2O	K2O	P2O5	MNO	LOI	CE	V	ZR	BA	RB	SR	Y
2007-002412	XRF	WHOLE ROCK	69	0.55	16.19	1.75	1.07	3.48	4.51	2.71	0.29	0.04	1.19	53	36	198	1000	54	660	16

Element Normalization
pyrolite OIB

	Rb	V	Zr	Ce	Ba	Sr	Y
SAMPLE VALUE	54	36	198	53	1000	660	16
	PPM	PPM	PPM	PPM	PPM	PPM	PPM
REF STANDARD	0.6	82	10.5	1675	6600	19.9	4.3
	PPM	PPM	PPM	PPB	PPB	PPM	PPM