Sample ID: 97L-17
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: 28.5
Min Age: 28.4
Max Age: 28.6
Geological Age: OLIGOCENE
Age Method: U-PB CONCORDIA

Material: IGNEOUS
Type: VOLCANIC
Composition: FELSIC
Rock Name: PYROCLASTIC-FALL



Rock Data
Reference Technique Material SIO2 TIO2 AL2O3 FE2O3 MGO CAO NA2O K2O P2O5 MNO LOI ZR BA NB RB SR Y
1988-011206 XRF WHOLE ROCK 66.97 0.52819914 15.728935 3.9752326 1.0309551 3.031802 3.6495607 4.1350155 0.23611213 0.043762162 1.73            
2003-024675 XRF WHOLE ROCK                       186 884 15 111 449 18


Total Alkali vs Silica


Element Normalization
  Nb
Rb
Zr
Ba
Sr
Y
SAMPLE VALUE 15 111 186 884 449 18
  PPM PPM PPM PPM PPM PPM
REF STANDARD 658 0.6 10.5 6600 19.9 4.3
  PPB  PPM  PPM  PPB  PPM  PPM