Sample ID: HC-46
Georef Number: 2007-035831
Reference Title: Geology and complex collapse mechanisms of the 3.72 Ma HanneganCaldera, north Cascades, Washington, USA
Reference Author: Tucker, David; Hildreth, Wes; Ullrich, Tom; Friedman, Richard

Location

Sample Detail


Major Data? YES
Trace Data? NO
Isotope Data? NO 		Age: 3.55
Min Age: 1.8
Max Age: 5.3
Geological Age: PLIOCENE
Age Method: REG-COR

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



Rock Data
Reference Technique Material SIO2 TIO2 AL2O3 FEO MGO CAO NA2O K2O P2O5 MNO
2007-035831 XRF WHOLE ROCK 72.1 0.29 16.37 1.31 0.11 1.22 8.39 0.11 0.09 0.02


Total Alkali vs Silica