Sample ID: TA 9
Georef Number: 1984-001334
Reference Title: Relations volcanologie - magmatologie - geodynamique; application au passage entre volcanisme alcalin et andesitique dans le Sud mexicain Axe Trans-mexicain et Province Alcaline Orientale
Reference Author: Robin-C

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

Age: 28 Min Age: 27.2 Max Age: 28.8 Geological Age: OLIGOCENE Age Method: K-AR Material: IGNEOUS Type: VOLCANIC Composition: MAFIC Rock Name: NEPHELINITE

Rock Data

Reference	Technique	Material	K
1979-023073	UNKNOWN	WHOLE ROCK	2.86

Element Normalization
pyrolite OIB

	K
SAMPLE VALUE	2.86
	PPM
REF STANDARD	240
	PPM

Isotope Chemistry