Diamonds in an Upper Mantle Peridotite Nodule from Kimberlite in Southern Wyoming
- 16 April 1976
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 192 (4236), 253-256
- https://doi.org/10.1126/science.192.4236.253
Abstract
Diamonds in a serpentinized garnet peridotite nodule from a diatreme in southern Wyoming are the first known occurrence in an upper mantle peridotite xenolith from a kimberlite intrusion in North America as well as the second authenticated occurrence of diamonds from kimberlite pipes in North America. The nodule is believed to have come from a section of depleted (partially melted) lherzolite at a depth of 130 to 180 kilometers.Keywords
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