Sample ID: 378
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	RB	SR	Y
2007-002412	XRF	WHOLE ROCK	70.8	0.55	15.05	4.15	1.34	1.25	3.82	2.3	0.23	0.08	3.6	33	289	182

Element Normalization
pyrolite OIB

	Rb	Sr	Y
SAMPLE VALUE	33	289	182
	PPM	PPM	PPM
REF STANDARD	0.6	19.9	4.3
	PPM	PPM	PPM