Reactive origin of mantle harzburgite: Evidence from orthopyroxene-spinel association
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DOI: 10.1016/j.lithos.2019.05.011
Abstract: Abstract Harzburgites with high modal orthopyroxene (generally >23 vol%) in Archean craton, mantle wedge and oceanic lithospheric mantle are considered to be produced by the interaction between Si-rich liquids and rocks. However, the absence of samples… read more here.
Keywords: orthopyroxene; orthopyroxene spinel; mantle; spinel association ... See more keywords
Quartz and orthopyroxene exsolution lamellae in clinopyroxene and the metamorphic P–T path of Belomorian eclogites
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DOI: 10.1111/jmg.12280
Abstract: The Shirokaya Salma eclogite-bearing complex is located in the Archean-Paleoproterozoic Belomorian Province (Russia). Its eclogites and eclogitic rocks show multiple clinopyroxene breakdown textures, characterized by quartz-amphibole, orthopyroxene, and plagioclase lamellae. Representative samples, a fresh eclogite,… read more here.
Keywords: clinopyroxene; metamorphism; orthopyroxene; path ... See more keywords