Sample ID: PO 79
Georef Number: 1984-001334
Reference Title: Relations volcanologie - magmatologie - geodynamique; application au passage entre volcanisme alcalin et andesitique dans le Sud mexicain Axe Trans-mexicain et Province Alcaline Orientale
Reference Author: Robin-C

Location

Sample Detail


Major Data? YES
Trace Data? YES
Isotope Data? NO 		Age: 2
Min Age: 1
Max Age: 3
Geological Age: PLEISTOCENE
Age Method: UNKNOWN

Material: IGNEOUS
Type: VOLCANIC
Composition: FELSIC
Rock Name: DACITE



Rock Data
Reference Technique Material SIO2 TIO2 AL2O3 FE2O3 FEO MGO CAO NA2O K2O MNO H2O_PLUS H2O_MINUS LA CE SM EU TB YB SC CR CO NI CU ZR BA CS HF RB SB SR TA TH U
1979-023073 UNKNOWN WHOLE ROCK 64.1 0.85 16 2.3 2.61 2.94 4.4 4.45 2.15 0.08 0.1 0.01 15 32.5 3.2 1.11 0.47 1.62 11 78 22 47 15 154 423 2.7 4.4 52 0.15 473 0.89 4.4 1.67


Total Alkali vs Silica


Element Normalization
  Th
Cs
Cu
Eu
Ni
Rb
Sb
Sc
Sm
Ta
Tb
Zr
U
Ce
Cr
Ba
La
Sr
Hf
Yb
Co
SAMPLE VALUE 4.4 2.7 15 1.11 47 52 0.15 11 3.2 0.89 0.47 154 1.67 32.5 78 423 15 473 4.4 1.62 22
  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 30 154 1960 0.6 5.5 16.2 406 37 99 10.5 20.3 1675 2625 6600 648 19.9 283 441 105
  PPB  PPB  PPM  PPB  PPB  PPM  PPB  PPM  PPB  PPB  PPB  PPM  PPB  PPB  PPB  PPB  PPB  PPM  PPB  PPB  PPM