Polymetamorphism in the Paleoproterozoic Ubendian Belt, Tanzania
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Abstract
The Paleoproterozoic (ca. 2.0-1.8 Ga) UbendianUsagaran
orogens surrounding the SE and SW margins of
the Archaean Tanzania craton contain eclogites of MORBlike
chemistry which are among the oldest eclogite
occurrences exposed in orogenic belts on Earth. Our study of
metamorphic events by petrology and U-Pb SHRIMP dating
of zircons is aimed to unravel the orogenic history of the
Ubendian Belt southwest of the Tanzania Craton
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Boniface, N.E.L.S.O.N. and Schenk, V., 2007. Polymetamorphism in the Paleoproterozoic Ubendian Belt, Tanzania. Geochimica et Cosmochimica Acta, 71(15 Suppl S), p.A107.