Petrology and structure of a portion of the pЄ Mullen Creek metaigneous mafic complex, Medicine Bow Mountains, Wyoming
The Mullen Creek mafic complex, located in the central Medicine Bow Mountains of Wyoming, is a Precambrian sequence of layered metaigneous mafic rocks intruded by several small, irregular plutons of felsic composition. The sequence consists of a diversified assemblage of rock types that exhibit variable degrees of regional and kinetic metamorphism as well as hybridization resulting from subsequent intrusion of felsic bodies. The main mafic body is a layered metagabbroic mass that has undergone gravitational differentiation to form gabbro-anorthositic gabbro-anorthosite-pyroxenite differentiates. ...
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