2026-06-27T16:20:21Zhttps://docta.ucm.es/rest/oai/request
oai:docta.ucm.es:20.500.14352/435372024-07-17T15:01:14Zcom_20.500.14352_14col_20.500.14352_15
Docta Complutense author Romeo Briones, Ignacio author Capote Del Villar, Ramón 2023-06-20T01:21:46Z 2023-06-20T01:21:46Z 2011-06-13 0032-0633 10.1016/j.pss.2011.05.013 https://hdl.handle.net/20.500.14352/43537 https://doi.org/10.1016/j.pss.2011.05.013 https://www.sciencedirect.com/journal/planetary-and-space-science A detailed structural analysis of several selected areas of Ovda Regio provides evidence of a complex tectonic evolution. We have reported thrusting in the marginal fold belts indicating together with the presence of short-wavelength folds a significant amount of shortening. Extensional tectonics postdate at least in some locations contraction, while the contrary was not observed. Both contraction and extension occur on a complex layered crust yielding contemporary structures of different wavelengths. The thrust and fold belts of the plateau margins are characterized by concentric contraction followed by concentric contraction with perpendicular extension and finally radial extension. Deformation in the thrust and fold belts of Ovda margins is gradually transmitted to the external plains. A complex tectonic history has been revealed in the internal area of Ovda, basically characterized by contraction in different directions generating basin and dome interference at different wavelengths. Small amounts of a non-coaxial component of deformation have been observed both in the margins and in the central area of the plateau. All the reported observations can be explained if Ovda Regio is a continent that survived a global subduction event. eng Tectonic evolution of Ovda Regio: An example of highly deformed continental crust on Venus? journal article URL https://docta.ucm.es/bitstreams/8c5ebb93-827f-4ed1-be77-d3e95aba3353/download File MD5 99154b7fd87b0704609c08fdc1aeab84 6043442 application/pdf 1-s2.0-S0032063311001711-main.pdf