16   Artículos

 
en línea
Jiao Guo, Jiansheng Shi, Hongyun Chen, Chao Song, Qiuyao Dong and Wei Wang    
Paleoclimate studies of loess in China have focused mostly on the time series of a single borehole or profile. However, research on loess strata and regional paleoenvironmental patterns could facilitate a deeper understanding of loess as a paleoenvironme... ver más
Revista: Geosciences    Formato: Electrónico

 
en línea
Kate Andrzejewski, Greg Ludvigson, Marina Suarez, Paul McCarthy and Peter Flaig    
We report estimated stable isotope compositions of Artic paleoprecipitation using phyllosilicates sampled from three paleosols and two bentonites in the Prince Creek Formation (Maastrichtian) in northern Alaska. Previous studies reported a deuterium exce... ver más
Revista: Geosciences    Formato: Electrónico

 
en línea
Alejandro Kramarz,Eduardo Bellosi,Mariano Bond,Analía M. Forasiepi,Juan Carlos Fernicola,Guillermo Aguirrezabala,Daniella Teixeira de Rezende     Pág. 238 - 272
The Paleogene terrestrial faunal succession and its associated bearing volcaniclastic deposits has been exhaustively studied in central Patagonia, but there is still no acceptable litho-bio-chronostratigraphic ordering for the extra-Andean North Patagoni... ver más
Revista: Andean Geology    Formato: Electrónico

 
en línea
James R. Bonelli, Jr. and Peter P. Flaig    
Late Cretaceous coastal plain deposits of the Prince Creek Formation (PCF) offer a rare glimpse into an ancient, high-latitude, arctic greenhouse ecosystem for which there is no modern analog. Here, we employ quantitative biofacies analysis to explore th... ver más
Revista: Geosciences    Formato: Electrónico

 
en línea
Augusto Nicolás Varela, María Sol Raigemborn, Patricio Emmanuel Santamarina, Sabrina Lizzoli, Thierry Adatte and Ulrich Heimhofer    
The Cenomanian Mata Amarilla Formation (MAF) in southern Patagonia (~55° S paleolatitude, Austral-Magallanes Basin, Argentina) is composed mainly of stacked fluvial deposits with intercalated paleosols, which document Cenomanian environments at high-pale... ver más
Revista: Geosciences    Formato: Electrónico

 
en línea
Denver Fowler    
The Upper Maastrichtian fluvial Hell Creek Formation of the Fort Peck Lake area, Montana (and regional equivalents) is notable for its vertebrate fossils and for the K-Pg mass extinction at or near its upper contact. Despite intense study, internal strat... ver más
Revista: Geosciences    Formato: Electrónico

 
en línea
Bernhard Lucke, Joel Roskin, Kim André Vanselow, Hendrik J. Bruins, Nizar Abu-Jaber, Katleen Deckers, Susanne Lindauer, Naomi Porat, Paula J. Reimer, Rupert Bäumler, Tali Erickson-Gini and Paula Kouki    
Loess accumulated in the Negev desert during the Pleistocene and primary and secondary loess remains cover large parts of the landscape. Holocene loess deposits are however absent. This could be due low accumulation rates, lack of preservation, and highe... ver más
Revista: Geosciences    Formato: Electrónico

 
en línea
Maria Dergacheva, Olga Nekrasova, Leonid Rikhvanov and Dmitry Zdanovich    
This article analyzes the lanthanum, cerium, samarium, europium, terbium, ytterbium, lutetium, uranium, and thorium content in humic acids within soil and paleosol surface horizons from the southern steppe in the Southern Urals. Research demonstrates sim... ver más
Revista: Geosciences    Formato: Electrónico

 
en línea
Marc Jolivet, Philippe Boulvais, Laurie Barrier, Cécile Robin, Gloria Heilbronn, Julie Ledoyen, Quentin Ventroux, Yingying Jia, Zhaojie Guo and Elena A. Bataleva    
The Late Mesozoic–Cenozoic topographic and climate evolution of Central Asia remains highly debated. The final retreat of the proto-Paratethys Sea from the western Tarim Basin is thought to correspond in time with the onset of tectonic uplift in th... ver más
Revista: Geosciences    Formato: Electrónico

 
en línea
Daniel I. Hembree and Jennifer L. Carnes    
Direct exposure of paleosols to the atmosphere during formation make them ideal for reconstructing paleoclimate. Paleosol and ichnofossil properties are dependently linked making it important to study them in tandem, to avoid errors in interpretation. Sm... ver más
Revista: Geosciences    Formato: Electrónico

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