The origin of contractional structures in extensional gneiss domes: COMMENT
نویسندگان
چکیده
منابع مشابه
Gneiss domes and gneiss dome systems
Various mechanisms have been proposed for the dynamic cause and kinematic development of gneiss domes. They include (1) diapiric fl ow induced by density inversion, (2) buckling under horizontal constriction (i.e., extension perpendicular to compression), (3) coeval orthogonal contraction or superposition of multiple phases of folding in different orientations, (4) instability induced by vertic...
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Field, structural, and metamorphic petrology investigations of Mabja gneiss dome, southern Tibet, suggest that contractional, extensional, and diapiric processes contributed to the structural evolution and formation of the domal geometry. The dome is cored by migmatites overlain by sillimanite-zone metasedimentary rocks and orthogneiss; metamorphic grade diminishes upsection and is defined by a...
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ژورنال
عنوان ژورنال: Geology
سال: 2017
ISSN: 0091-7613,1943-2682
DOI: 10.1130/g39092c.1