Artículos de revistas
Dobras em bainha macroscopicas relacionadas ao cisalhamento ductil de baixo angulo da nappe Araxa-Canastra no sudoeste de Minas Gerais
Fecha
1993-12-01Registro en:
Geociencias (Sao Paulo), v. 12, n. 1, p. 111-122, 1993.
2-s2.0-0027796387
Autor
Universidade Estadual Paulista (Unesp)
Institución
Resumen
In the Proterozoic fold-thrust belt of Southwestern Minas Gerais, sheath folds belonging to Araxa-Canastra Group were mapped. These structures are explained by a tangential shear related to nappe transport, which acted together with an additional transcurrent shear, driven by a lateral ramp. An interesting feature recognized in these sheath folds is the striking obliquity between the hinge line of the macro structure and the hinge lines of the parasitic folds in the sheath fold closure. -English summary