Sample ID: 89L-174
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: 25.7
Min Age: 25.2
Max Age: 26.2
Geological Age: OLIGOCENE
Age Method: REG-COR

Material: IGNEOUS
Type: PLUTONIC
Composition: FELSIC
Rock Name: RHYOLITE



Rock Data
Reference Technique Material SIO2 TIO2 AL2O3 FE2O3 MGO CAO NA2O K2O P2O5 MNO LOI
1988-011206 XRF WHOLE ROCK 74.28 0.35261208 13.728157 1.4455034 0.35879827 1.2073355 2.6878939 5.115968 0.14949927 0.022682648 2.99


Total Alkali vs Silica