Sample ID: HC-57
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: 3.722
Min Age: 3.702
Max Age: 3.742
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 74.34 0.19 14.18 1.27 0.04 0.74 5.17 3.98 0.03 0.05


Total Alkali vs Silica