Sample ID: LR87-707-2
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: 31.25
Min Age: 29.5
Max Age: 33
Geological Age: OLIGOCENE
Age Method: AR_AR

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 SM EU GD TB HO TM YB LU SC CR CO NI ZN ZR BA CS HF NB ND PB RB SB SR TA TH U Y
1988-011206 XRF WHOLE ROCK 53.97 1.1351557 16.78624 10.829184 3.455695 7.2931237 3.2849195 1.8383493 0.34155124 0.2009125 0.45                                                          
2003-024675 XRF WHOLE ROCK                       26 51                         118.33334 166 661     11.333333 32 39.666668 28.333334   530.6667   12   27.333334
2003-024679 INAA WHOLE ROCK                       23.5 52.4 6.38 1.75 5.99 0.883 1.25 0.491 3.03 0.449 23.8 4.2 25.8 12.1 114 163 658 1.66 4.02   28.1   26.9 0.09 518 0.345 2.36 0.691  


Total Alkali vs Silica


Element Normalization
  Th
Cs
Eu
Lu
Nb
Nd
Ni
Pb
Rb
Sb
Sc
Sm
Ta
Tb
Zr
U
Ce
Cr
Ba
La
Sr
Hf
Y
Tm
Ho
Yb
Co
Zn
SAMPLE VALUE 2.36 1.66 1.75 0.449 11.333333 28.1 12.1 39.666668 26.9 0.09 23.8 6.38 0.345 0.883 163 0.691 52.4 4.2 658 23.5 518 4.02 27.333334 0.491 1.25 3.03 25.8 114
  PPM PPM PPM PPM PPM PPM PPM PPM PPM PPM PPM PPM PPM PPM PPM PPM PPM PPM PPM PPM PPM PPM PPM PPM PPM PPM PPM PPM
REF STANDARD 79.5 21 154 67.5 658 1250 1960 150 0.6 5.5 16.2 406 37 99 10.5 20.3 1675 2625 6600 648 19.9 283 4.3 68 149 441 105 55
  PPB  PPB  PPB  PPB  PPB  PPB  PPB  PPB  PPM  PPB  PPM  PPB  PPB  PPB  PPM  PPB  PPB  PPB  PPB  PPB  PPM  PPB  PPM  PPB  PPB  PPB  PPM  PPM