Results 81 to 90 of about 47,858 (274)

Re-evaluation of the age model for North Atlantic Ocean Site 982 – arguments for a return to the original chronology [PDF]

, 2013
Recently, the veracity of the published chronology for the Pliocene section of North Atlantic Ocean Drilling Program Site 982 was called into question. Here, we examine the robustness of the original age model as well as the proposed age model revision ...
Lawrence, KT, M. E. Raymo, Lawrence, K.T., K. T. Lawrence, Raymo, M.E., Raymo, ME, I. Bailey, Bailey, Ian   +7 more
core   +2 more sources

Refinement of the Quaternary seismic stratigraphy and analysis of buried glacial channels on the Labrador Shelf

Journal of Quaternary Science, EarlyView.
ABSTRACT The Laurentide Ice Sheet covered vast areas of North America during the Wisconsinan, including the Labrador Shelf, off the coast of eastern Canada. The shelf is characterized by glacial cross‐shelf troughs, which have been considered as predominantly eroded by the last ice advance.
Kai‐Frederik Lenz, Felix Gross, A. Catalina Gebhardt, Arne Lohrberg, Ralph Schneider, Henriette Kolling, Florian Riefstahl, Orlando Martinez Bautista, Viktoria Thamm, Sebastian Krastel   +9 more
wiley   +1 more source

Impact of Mid‐Pliocene Boundary Conditions on the Atlantic Meridional Overturning Circulation (AMOC)

Geophysical Research Letters
We use the coupled atmosphere‐ocean model MIROC4m to investigate the effect of mid‐Pliocene boundary conditions on the Atlantic Meridional Overturning Circulation (AMOC), studying the impact of increased CO2, reduced ice sheets and altered orography and ...
Julia E. Weiffenbach, Wing‐Le Chan, Ayako Abe‐Ouchi, Anna S. von derHeydt   +3 more
doaj   +1 more source

The mid-Pliocene climate simulated by FGOALS-g2 [PDF]

Geoscientific Model Development, 2013
Within the framework of Pliocene Model Intercomparison Project (PlioMIP), the mid-Pliocene warm period (mPWP – 3.264–3.025 Ma BP) climate simulated by the Flexible Global Ocean–Atmosphere–Land System model grid-point version g2 (FGOALS-g2) are analysed ...
W. Zheng, Z. Zhang, L. Chen, Y. Yu
doaj   +1 more source

Dental enamel hypoplasia and intra‐tooth isotope records as indicators of physiological stress and environmental variability in Early Pleistocene hippopotamids from Melka Kunture (Upper Awash, Ethiopia)

Journal of Quaternary Science, EarlyView.
ABSTRACT Enamel hypoplasia results from temporary disruptions of enamel deposition during tooth development. It is widely used as an indicator of physiological stress in archeological and paleontological contexts; yet, its relationship with environmental conditions during tooth formation remains poorly constrained.
Giuseppe Briatico, Denis Geraads, Rita T. Melis, Margherita Mussi   +3 more
wiley   +1 more source

Pliocene-Pleistocene calcareous nannofossils from the Iberian Abyssal Plain

, 1996
During Ocean Drilling Program Leg 149, five sites were drilled on the Iberia Abyssal Plain, west of the Iberian Peninsula. Five holes (Holes 897A, 897C, 898A, 899A, and 900A) yielded Pliocene-Pleistocene sediments, which consist mainly of turbidites ...
P. Maiorano, Liu, Li, L. Liu, Zhao, Xixi, Li Liu (75607), Xixi Zhao (4251673), X. Zhao, Patrizia Maiorano (6974480), Maiorano, Patrizia   +8 more
core   +1 more source

The PRISM4 (mid-Piacenzian) palaeoenvironmental reconstruction [PDF]

, 2016
The mid-Piacenzian is known as a period of relative warmth when compared to the present day. A comprehensive understanding of conditions during the Piacenzian serves as both a conceptual model and a source for boundary conditions and means of ...
Dowsett, Harry, Foley, Kevin, Haywood, Alan, Salzmann, Ulrich, Robinson, Marci, Rowley, David, Chandler, Mark, Dolan, Aisling, Pound, Matthew   +8 more
core   +1 more source

Repeated Pleistocene Permafrost Episodes in the Western Pannonian Basin

Permafrost and Periglacial Processes, EarlyView.
ABSTRACT Concerning the study of past periglacial processes, the Pannonian Basin is a key area as it contains the southernmost frost polygons found in Central Europe. The presence or absence of permafrost is still, however, a matter of debate, and data on the timing of frost action are also scarce.
Krisztina Sebe, Ágnes Novothny, Gergely Surányi, Barbara Varga, László Fodor, Gábor Csillag   +5 more
wiley   +1 more source

Waves of range dynamics and gene flow characterize the biogeographic history of Litsea elongata, a dominant tree in East Asian evergreen broadleaved forests

PLANTS, PEOPLE, PLANET, EarlyView.
Evergreen broadleaved forests (EBLFs) represent an iconic vegetation type in subtropical montane East Asia, but they are experiencing intensifying anthropogenic pressure and increasing habitat fragmentation. Here, using a dominant and widespread tree species characteristic of East Asian EBLFs, we examine its phylogeographic history and evaluate what it
Sheng‐Yuan Qin, Richard H. Ree, Zheng‐Yu Zuo, Chih‐Chieh Yu, Shuang‐Xiu Xu, Jun Rong, Peng‐Fei Ma, De‐Zhu Li   +7 more
wiley   +1 more source

Lithostratigraphy of the Neogene succession of the Danish North Sea

GEUS Bulletin
The Neogene of the Danish North Sea is more than 1200 m thick. Despite being penetrated by numerous wells, formal lithostratigraphic subdivision of this succession has previously been restricted to the lowermost part.
Erik Skovbjerg Rasmussen, Karen Dybkjær, Jørgen Christian Toft, Ole Bjørslev Nielsen, Emma Sheldon, Finn Mørk   +5 more
doaj   +1 more source