Sample ID: S269
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: 26.6
Min Age: 26
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 64.88 0.5896791 16.562742 4.676052 1.6759303 3.7760155 3.1035745 4.448457 0.2586312 0.11586678 3.34          
2003-024675 XRF WHOLE ROCK                       185 13 132 513 20


Total Alkali vs Silica


Element Normalization
  Nb
Rb
Zr
Sr
Y
SAMPLE VALUE 13 132 185 513 20
  PPM PPM PPM PPM PPM
REF STANDARD 658 0.6 10.5 19.9 4.3
  PPB  PPM  PPM  PPM  PPM