Sample ID: JR02-71c
Georef Number: 2008-130672
Reference Title: Isotope geochemistry and petrogenesis of peralkaline middle Miocene ignimbrites from central Sonora; relationship with continental break-up and the birth of the Gulf of California
Reference Author: Vidal Solano, Jesus R; Lapierre, Henriette; Stock, Joann M; Demant, Alain; Paz Moreno, Francisco A; Bosch, Delphine; Brunet, Pierre; Amortegui, Andrea

Location

Sample Detail


Major Data? YES
Trace Data? YES
Isotope Data? YES 		Age: 12.25
Min Age: 12
Max Age: 12.5
Geological Age: MIOCENE
Age Method: REG-COR

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



Rock Data
Reference Technique Material SIO2 TIO2 AL2O3 FE2O3 MGO CAO NA2O K2O P2O5 MNO LA CE PR SM EU GD TB DY HO ER YB LU ZR BA CS HF NB ND ND143_ND144 PB RB SR SR87_SR86 TA TH U Y
2008-130672 ICPAES WHOLE ROCK 71.91 0.11 12.18 1.74 0.1 0.48     -0.03 0.03                         294.7 40.1 5.05 9.17 20.7         11.2   1.91 18.87 5.79 49
2008-130672 AAS WHOLE ROCK             3.25 5.22                                             180.3            
2008-130672 ICPMS WHOLE ROCK                     57.06 117.9 13.7 9.94 0.1 8.5 1.4 8.42 1.67 4.89 5.06 0.77           49.97                  
2008-130672 TIMS WHOLE ROCK                                                         0.512703 33.41     0.7187        


Total Alkali vs Silica


Element Normalization
  Th
Cs
Dy
Er
Eu
Lu
Nb
Nd
Pb
Rb
Sm
Ta
Tb
Zr
U
Ce
Ba
La
Pr
Sr
Hf
Y
Ho
Yb
SAMPLE VALUE 18.87 5.05 8.42 4.89 0.1 0.77 20.7 49.97 33.41 180.3 9.94 1.91 1.4 294.7 5.79 117.9 40.1 57.06 13.7 11.2 9.17 49 1.67 5.06
  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 21 674 438 154 67.5 658 1250 150 0.6 406 37 99 10.5 20.3 1675 6600 648 254 19.9 283 4.3 149 441
  PPB  PPB  PPB  PPB  PPB  PPB  PPB  PPB  PPB  PPM  PPB  PPB  PPB  PPM  PPB  PPB  PPB  PPB  PPB  PPM  PPB  PPM  PPB  PPB 






Isotope Chemistry
143Nd/144Nd 87Sr/86Sr
0.512703 0.7187