Sample ID: 88L-57
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: 31.5
Min Age: 28
Max Age: 35
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 62.46 0.7197223 16.360664 5.4811187 1.9325308 4.3213964 3.5016274 4.0039015 0.35016274 0.10617179 2.03


Total Alkali vs Silica