Sample ID: DS88-081
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: 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: RHYOLITE



Rock Data
Reference Technique Material LA CE ZN ZR BA NB ND PB RB SR TH Y
2003-024675 XRF WHOLE ROCK 45 87 76 173 938 15 27 30 108 488 18 23




Element Normalization
  Th
Nb
Nd
Pb
Rb
Zr
Ce
Ba
La
Sr
Y
Zn
SAMPLE VALUE 18 15 27 30 108 173 87 938 45 488 23 76
  PPM PPM PPM PPM PPM PPM PPM PPM PPM PPM PPM PPM
REF STANDARD 79.5 658 1250 150 0.6 10.5 1675 6600 648 19.9 4.3 55
  PPB  PPB  PPB  PPB  PPM  PPM  PPB  PPB  PPB  PPM  PPM  PPM