Sample ID: 99L-21A
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? YES
Trace Data? NO
Isotope Data? NO 		Age: 27.71
Min Age: 27.62
Max Age: 27.8
Geological Age: OLIGOCENE
Age Method: REG-COR

Material: IGNEOUS
Type: VOLCANIC
Composition: INTERMEDIATE
Rock Name: ANDESITE



Rock Data
Reference Technique Material SIO2 TIO2 AL2O3 FE2O3 MGO CAO NA2O K2O P2O5 MNO LOI
1988-011206 XRF WHOLE ROCK 60.59 0.671018 17.283798 6.4560065 2.0638888 5.58165 3.9346056 2.1350574 0.38634372 0.16267103 1.63


Total Alkali vs Silica