RT Journal Article
T1 Transición Cretácico/Terciario en depósitos continentales de la cuenca de Tremp-Graus: datos preliminares de isótopos estables de C y O
T1 Cretaceous/Tertiary transition in continental deposits of the Tremp-Graus basin; preliminary dala of C and O stable isotopes
A1 López Martínez, N.
A1 Ardévol, Ll.
A1 Arribas Mocoroa, María Eugenia
A1 Civis-Llovera, Jorge
A1 González Delgado, José Ángel
AB Continental deposits around the Cretaceous/Tertiary boundary have been studied for stratigraphy, sedimento/ogy, paleontology and stable isotopes ("C and ,aO) in the Benabarre and Fontllonga sections (Tremp and Ager syndines, Southern Pyrenees). Similarities in lithology, sedimentary evolution, fossil content and isotopic values allow us to interpret these deposits as part of a single basin. A shift in the isotopic content (rise in ,bO and fall in ,JC) around the K/T boundary is detected. The increase in inO may be linked to higher temperatures and/or to evaporation. The ,3C fall matches the «z event» described in marine environments and interpreted as due to a decrease in marine organic productivity. In non-marine environments however it could indicate an increase in plant production
PB Sociedad Geológica de España
YR 1996
FD 1996
LK http://hdl.handle.net/10272/11437
UL http://hdl.handle.net/10272/11437
LA spa
DS Repositorio Institucional de la Universidad de Huelva
RD 30 may 2026