Corundum-bearing and spinel-bearing symplectites in ultrahigh-pressure eclogites record high-temperature overprint and partial melting during slab exhumation
Abstract:Abstract. Corundum- and spinel-bearing symplectites after muscovite were found in
ultrahigh-pressure (UHP) eclogites from the Dabie terrane, China. Three
types of symplectites were recognized based on their mineral assemblages:
(1) symplectitic intergrowths of corundum + plagioclase + biotite after
phengite (CPB), (2) symplectitic intergrowths of spinel + plagioclase +
biotite after phengite (SPB), and (3) symplectitic intergrowths of spinel
+ plagioclase after paragonite (SP). The microtextures and mineral
as… Show more
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