RT Journal Article
T1 La fábrica de las rocas miloníticas de la Zona de Cizalla de Los Llanos (Calzadilla de los Barros, Badajoz)
A1 Jiménez Díaz, Alberto
A1 Capote Del Villar, Ramón
A1 Tejero López, Rosa
A1 Lunar Hernández, María Del Rosario
A1 Ortega Menor, Lorena
A1 Monterrubio Pérez, Serafín
A1 Maldonado, Casimiro
A1 Rodríguez, David
AB The Los Llanos Shear Zone bounds the Cabeza Gorda and Zafra units located in the Ossa-Morena Zone (SW Iberian Massif). Within the Cabeza Gorda unit two peridotitic massifs crop out, named Sierra Cabeza Gorda and Cerro Cabrera. The mylonitic rocks consist of metamorphic and peridotitic rocksextensively deformed that exhibit a penetrative foliation. Mylonitic fabrics are characterized by s and d structures and S-C and S-C’ band. Some examples show a crenulation cleavage that points out the existence of at least two deformation stages. Kinematic criteria are widespread, but dextral-reverse movement prevails both in outcrop and thin section. Los Llanos Shear Zone orientation is NW-SE, similar to variscan structures trend in the area, and deforms precambrian and paleozoic rocks. Los Llanos Shear Zone represents a dextral-reverse structure of Variscan age.
PB Sociedad Geológica de España
SN 0213-683X
YR 2009
FD 2009
LK https://hdl.handle.net/20.500.14352/49394
UL https://hdl.handle.net/20.500.14352/49394
LA spa
DS Docta Complutense
RD 18 abr 2025