Sample ID: 80
Georef Number: 2007-002412
Reference Title: Rhyodacites of Kulshan Caldera, north Cascades of Washington;post-caldera lavas that span the Jaramillo
Reference Author: Hildreth, Wes; Lanphere, Marvin A; Champion, Duane E; Fierstein, Judy

Location

Sample Detail


Major Data? YES
Trace Data? YES
Isotope Data? NO
Age: 1.063
Min Age: 1.051
Max Age: 1.075
Geological Age: PLEISTOCENE
Age Method: AR_AR

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



Rock Data
Reference Technique Material SIO2 TIO2 AL2O3 FEOT MGO CAO NA2O K2O P2O5 MNO LOI RB SR Y
2007-002412 XRF WHOLE ROCK 71.3 0.37 15.11 2.24 0.58 1.69 4.46 3.67 0.14 0.06 3.88 68 200 239


Total Alkali vs Silica


Element Normalization
  Rb
Sr
Y
SAMPLE VALUE 68 200 239
  PPM PPM PPM
REF STANDARD 0.6 19.9 4.3
  PPM  PPM  PPM