Sample ID: SJ-85-50
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: 26.92
Min Age: 26.85
Max Age: 26.99
Geological Age: OLIGOCENE
Age Method: AR_AR

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 NI CU ZN ZR NB PB RB SR Y
1988-011206 XRF WHOLE ROCK 65.49 0.6202948 16.08699 4.8403335 1.5049776 3.5794063 3.1218116 4.4437513 0.2847255 0.05084384 1.66                  
2003-024675 XRF WHOLE ROCK                       49 29 70 168 16 35 144 593 26


Total Alkali vs Silica


Element Normalization
  Cu
Nb
Ni
Pb
Rb
Zr
Sr
Y
Zn
SAMPLE VALUE 29 16 49 35 144 168 593 26 70
  PPM PPM PPM PPM PPM PPM PPM PPM PPM
REF STANDARD 30 658 1960 150 0.6 10.5 19.9 4.3 55
  PPM  PPB  PPB  PPB  PPM  PPM  PPM  PPM  PPM