Results: 1 - 4 of 4
Oct 16, 2014
Open File Report
… silty shale, and siltstone samples showed that the lower … The total clay content of the samples ranged from 13% to 31%. In …
Mar 14, 2010
Data
… shield where we took rock samples for 40 argon/39 argon …
Mar 14, 2010
Data
… locations where we took rock samples for uranium-lead dating. …
Jan 11, 2012
Map
… and 40 argon/39 argon samples are marked on the map, and …