Sample ID: SJ85-47
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: 26.26
Min Age: 26.22
Max Age: 26.3
Geological Age: OLIGOCENE
Age Method: AR_AR

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 LA CE SM EU GD TB TM YB LU SC CR CO NI CU ZN ZR BA HF NB ND PB RB SB SR TA TH U Y
1988-011206 XRF WHOLE ROCK 73.12 0.47 13.84 2.52 0.84 2.19 3.26 3.93 0.09 0 1.23                                                        
2003-024675 XRF WHOLE ROCK                                               25 81 60 145     22   35 125   470       20
2003-024679 INAA WHOLE ROCK                       35.2 72 5.12 1.18 3.58 0.48 0.27 1.37 0.21 4.82 4.05 4.21 9.91   31.3 153 924 5.121   26.7   111 0.893 511 1.01 10.4 3.02  


Total Alkali vs Silica


Element Normalization
  Th
Cu
Eu
Lu
Nb
Nd
Ni
Pb
Rb
Sb
Sc
Sm
Ta
Tb
Zr
U
Ce
Cr
Ba
La
Sr
Hf
Y
Tm
Yb
Co
Zn
SAMPLE VALUE 10.4 81 1.18 0.21 22 26.7 9.91 35 111 0.893 4.82 5.12 1.01 0.48 153 3.02 72 4.05 924 35.2 511 5.121 20 0.27 1.37 4.21 31.3
  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 30 154 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 68 441 105 55
  PPB  PPM  PPB  PPB  PPB  PPB  PPB  PPB  PPM  PPB  PPM  PPB  PPB  PPB  PPM  PPB  PPB  PPB  PPB  PPB  PPM  PPB  PPM  PPB  PPB  PPM  PPM