Article ID Journal Published Year Pages File Type
4723301 Precambrian Research 2013 20 Pages PDF
Abstract
► Komatiitic sills of the Mashaba Ultramafic Suite yield a mean SHRIMP age of 2746 Ma. ► Likely comagmatic, superjacent, komatiitic flow fields are assigned the same age. ► Komatiitic and subsequent basaltic volcanism lasted about 70 Ma. ► Felsic country rocks to the sills yield SHRIMP zircon ages of 2.87-2.80 Ga. ► Platformal to basinal sedimentation directly below the komatiites lasted 50-120 Ma.
Related Topics
Physical Sciences and Engineering Earth and Planetary Sciences Geochemistry and Petrology
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