RT Journal Article
T1 Determinación de direcciones principales de esfuerzos neotectónicos mediante el análisis del maclado mecánico de la calcita
T1 Neotectonic principal stresses orientation revealed by calcite e-twin analysis
A1 González Casado, J. M.
A1 Giner Robles, J. L.
A1 Gumiel Martínez, Pablo
A1 García Cuevas, C.
A1 Moreno, A.
AB Pleistocene;karst¡c deposits developed into Upper Cretaceous limestones of the Prebetic zone, in the . boundary region between the Iberian and Betic chains, were sampled in order to investigate the calcite e-tyyin.occurrence in these modern sediments. Amazingly, sparry calcite grains from the karstic coating have mechanical twins, and they are very abundant in these grains close to recent faults (twin density of 5.7 twins/mm). Analysis of calcite e-twining by inverse methods reveal that the region has undergone an extensional regime with maximum shortening direction NE-SW. Similar results were obtained from fault population analysis. Which points out that calcite e-twin analysis are useful to establish the neotectonic principal stresses orientation in this region. The e-twin analysis techniques based on strain determinations also yield good results
PB Sociedad Geológica de España
YR 2004
FD 2004
LK http://hdl.handle.net/10272/8925
UL http://hdl.handle.net/10272/8925
LA spa
DS Repositorio Institucional de la Universidad de Huelva
RD 31 may 2026