Sample ID: SJ-85-53
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: 26.1
Max Age: 27
Geological Age: OLIGOCENE
Age Method: REG-COR

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



Rock Data
Reference Technique Material SIO2 TIO2 AL2O3 FE2O3 MGO CAO NA2O K2O P2O5 MNO LOI ZN ZR NB PB RB SR Y
1988-011206 XRF WHOLE ROCK 67.81 0.47295418 16.090506 2.7874107 0.67421126 2.213828 4.437719 4.558473 0.14087997 0.07043999 0.62              
2003-024675 XRF WHOLE ROCK                       51 409 16 24 116 552 33


Total Alkali vs Silica


Element Normalization
  Nb
Pb
Rb
Zr
Sr
Y
Zn
SAMPLE VALUE 16 24 116 409 552 33 51
  PPM PPM PPM PPM PPM PPM PPM
REF STANDARD 658 150 0.6 10.5 19.9 4.3 55
  PPB  PPB  PPM  PPM  PPM  PPM  PPM