Chromium and Nickel in the Fig Tree Shale from South Africa
- 13 October 1967
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 158 (3798) , 261-262
- https://doi.org/10.1126/science.158.3798.261
Abstract
Exceptionally high contents of chromium and nickel in shales from the early Precambrian Fig Tree series of South Africa (〉 3.1 x 109 years old) suggest that the ancient crustal rocks from which these sediments were derived were ultramafic in composition.Keywords
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