Sample ID: DS87-019
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? NO
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 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
2003-024675 XRF WHOLE ROCK 54 101                         86 273 1544     18 47 23 79   973   8   23
2003-024679 INAA WHOLE ROCK 53 109 9.75 2.26 7.31 0.898 0.89 0.299 1.85 0.275 13.1 35.2 21.8 17 103 254 1590 1.62 6.01   52.4   75.1 0.074 1030 0.8 4.6 1.7  




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 4.6 1.62 2.26 0.275 18 52.4 17 23 75.1 0.074 13.1 9.75 0.8 0.898 254 1.7 109 35.2 1590 53 1030 6.01 23 0.299 0.89 1.85 21.8 103
  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