Sample ID: 94L-20
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: 31.5
Min Age: 28
Max Age: 35
Geological Age: OLIGOCENE
Age Method: REG-COR

Material: IGNEOUS
Type: VOLCANIC
Composition: INTERMEDIATE
Rock Name: ANDESITE



Rock Data
Reference Technique Material SIO2 TIO2 AL2O3 FE2O3 MGO CAO NA2O K2O P2O5 MNO LOI LA CE CR NI CU ZN ZR BA NB RB SR Y
1988-011206 XRF WHOLE ROCK 63.07 0.7130167 16.168407 5.503284 1.5967557 4.1776752 3.6655083 3.866358 0.38161457 0.13055235 0.42                        
2003-024675 XRF WHOLE ROCK                       30 89 -20 -10 20 51 240 1200 13 104 700 30


Total Alkali vs Silica


Element Normalization
  Cu
Nb
Ni
Rb
Zr
Ce
Cr
Ba
La
Sr
Y
Zn
SAMPLE VALUE 20 13 10 104 240 89 20 1200 30 700 30 51
  PPM PPM PPM PPM PPM PPM PPM PPM PPM PPM PPM PPM
REF STANDARD 30 658 1960 0.6 10.5 1675 2625 6600 648 19.9 4.3 55
  PPM  PPB  PPB  PPM  PPM  PPB  PPB  PPB  PPB  PPM  PPM  PPM