Bulletin Mineralogie Petrologie

Two types of retrograde metamorphosed eclogite from Čejkov were investigated. The first type is pyroxene-bearing amphibolite with pseudomorphs after garnet (Ca-amphibole, clinopyroxene, plagioclase, orthopyroxene) without a visible structure of the original eclogite. The second type is retrograde metamorphosed eclogite with Ca and Fe-Mg-Mn-Li-amphibole, garnet, plagioclase, clinopyroxene and orthopyroxene that contain abundant clinopyroxene-plagioclase and orthopyroxene-plagioclase symplectites after omphacite (up to c. 75 vol. %). The symplectite rims garnet grains (pseudomorphs after garnet) and it is a common feature in  both rock types representing changes from eclogite to  amphibolite-granulite facies conditions.

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