RT Journal Article
T1 Discontinuidades y conformidades correlativas en las serieshemipelágicas del final del Cretácico en el Prebético.Caracterización biocronoestratigráfica
A1 Chacón Pichaco, Beatriz
A1 Martín Chivelet, Javier
AB In the upper Santonian to Danian hemipelagic to pelagic series in the eastern part o f the Prebetic Jumilla-Callosa-Aspe area, detailed stratigraphic and biostratigraphic analyses have allowed the recognition and age-dating of three major regional unconformities and their correlative conformities. These represent major changes in sedimentation, synsedimentary tectonic, bathymetry, basin configuration and/or faunal assemblages that abruptly took place in the ancient Betic continental margin. These surfaces, based on the stratigraphic distribution of globotruncanids, can be dated (at their minimum hiatus) as latest Santonian-earliest Campanian, middle Maastrichtian and Maastrichtian-Danian boundary in age. From base to top, the following biozones have been identified: Dicarinella asymetrica, Globotruncanita elevata, Clobotruncana ventricosa, Clobotruncanita calcarata, Globotruncana falsostuarti, Gansserina gansseri, Contusotruncana contusa - Racemiguembelina fructicosa, and Abathomphalus mayaroensis. The described unconformities bound and outline two major genetic stratigraphic units, with distinctive stratigraphic and sedimentalogical features. These units configure the first subdivision o f those Upper Cretaceous hemipelagic/pelagic successions of the Prebetic in terms of genetic stratigraphy.
PB Sociedad Geológica de España.
SN 1576-5172
YR 2001
FD 2001
LK https://hdl.handle.net/20.500.14352/57946
UL https://hdl.handle.net/20.500.14352/57946
LA spa
NO DGES
DS Docta Complutense
RD 11 jul 2025