RT Book, Section
T1 South-western Duero and Ciudad Rodrigo basins: infill and dissectionof a Tertiary basin
A1 Santisteban Navarro, Juan Ignacio
A1 Martín Serrano, Ángel
A1 Mediavilla López, Rosa María
A1 Dabrio González, Cristino José
A2 Friend, Peter F.
A2 Dabrio, Cristino J.
AB In the soult western sector of the intracontinetal Duero basin, the post-Hercynian sedimentary record consist of Upper Cretaceous to Quaternary terrestrial sediments. Climates shifted from tropical, with poorly defined seansos (end of Cretaceous), to Mediterranean (Neogene). Tertiary deposits are divided into three tectonographic completes. The Late Cretaceous-Paleocene, related to the end of the Mesozoic cycle, is caractericed by a well developed weathering profile that eroded later. The Eocene Oligocene, formed during the morpho-structural definition of the actual basin boundaries, consists of three unconformity-bounded units related to successive tectonic events of the Alpine Orogeny by the cnd of this cycle, progressive incision of the Atlantic nuvial network led to capture of the fluvial systems of the southern Duero basin and degradation (emptying) began. The Miocene-Phocene, related to and extensional tectonic regime represents the spreading of exorheik conditions to the whole basin that marked a complete hydrugraphic reorganisation. Deposition and aggradation continued in more central areas of the basin until the end of the Neogene, coeval with degradation of the south-western corner of the Duero Basin. The coexistence resulted from differential subsidence, hinge lines (uplift zones) separated sub-basins, and the dynamics of capture processes.
PB Cambridge University Press
SN 0521461715
YR 1996
FD 1996
LK https://hdl.handle.net/20.500.14352/60508
UL https://hdl.handle.net/20.500.14352/60508
LA eng
DS Docta Complutense
RD 24 jul 2024