UMATILLA COLUMBIA RIVER BASALT UMAT-1 |
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| Authors: | PR HOOPER SP REIDEL DM JOHNSON CM KNAACK |
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| Institution: | GeoAnalytical Laboratory, Department of Geology, Washington State University, Pullman, WA 99164, U.S.A. |
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| Abstract: | A preliminary report is presented on a basalt reference sample, Umatilla Columbia River Basalt, UMAT-1. Prepared in over 100 kg by the Columbia River Basalt Group, UMAT-1 was, initially, tested for its homogeneity by two US laboratories for major, minor and several trace elements; mean values of these two laboratories are presented. More recent data on 50 elements by a French laboratory attest to the excellent homogeneity of the sample. UMAT-1 is now available for further studies. |
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