Megaestruturacao pre-cambriana do territorio brasileiro baseada em dados geofisicos e geologicos
Contribuinte(s) |
Universidade Estadual Paulista (UNESP) |
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Data(s) |
27/05/2014
27/05/2014
01/12/1993
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Resumo |
Crustal discontinuities may be seen as A-type collision sutures with triple junction arrays. Shear belts developed at the block borders due to oblique plate convergence. A consistent litho-structural zoning may be observed along the border zones of the blocks: the known high-grade terrains are exposed along the upper block border and pass to distal granite-greenstone terrains; in the lower block, granite-greenstone terrains form the older basement, and supracrustals occur as a metavolcano-sedimentary belt near or adjacent to the suture. This regional litho-structural framework may be related to diachronous collisions of sialic masses which lead to their amalgamation into an extensive continental mass. -from English summary |
Formato |
7-31 |
Identificador |
Geociencias (Sao Paulo), v. 12, n. 1, p. 7-31, 1993. http://hdl.handle.net/11449/64434 2-s2.0-0027869072 |
Idioma(s) |
por |
Relação |
Geociencias (Sao Paulo) |
Direitos |
closedAccess |
Palavras-Chave | #metamorphism #mobile belt #orogenesis #Precambrian #shear zone #tectonic evolution #Brazil |
Tipo |
info:eu-repo/semantics/article |