St. Peter and St. Paul Rocks: A High-Temperature, Mantle-Derived Intrusion

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Science  24 Mar 1967:
Vol. 155, Issue 3769, pp. 1532-1535
DOI: 10.1126/science.155.3769.1532


St. Paul's Rocks, often postulated to be an exposure of the suboceanic mantle, consists of a wider variety of rocks than previously recognized. These perhaps crystallized at different mantle levels, and were subsequently incorporated and mylonitized in a hot but solid intrusion.