Sample ID: DS85-138
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? YES
Isotope Data? NO 		Age: 27
Min Age: 26.9
Max Age: 27.1
Geological Age: OLIGOCENE
Age Method: REG-COR

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



Rock Data
Reference Technique Material SIO2 TIO2 AL2O3 FE2O3 MGO CAO NA2O K2O P2O5 MNO LOI ZR NB RB SR Y
1988-011206 XRF WHOLE ROCK 75.09 0.19136053 13.225139 1.4245728 0.2657785 1.6584579 2.115597 5.528193 0 0.0531557 5.91          
2003-024675 XRF WHOLE ROCK                       156 34 224 367 25


Total Alkali vs Silica


Element Normalization
  Nb
Rb
Zr
Sr
Y
SAMPLE VALUE 34 224 156 367 25
  PPM PPM PPM PPM PPM
REF STANDARD 658 0.6 10.5 19.9 4.3
  PPB  PPM  PPM  PPM  PPM