Paleoceanography

Just out | Late Cretaceous (Cenomanian-Maastrichtian) planktic foraminifera from Goban Spur (DSDP sites 549 and 550): Biostratigraphic inferences @ Cretaceous Research

Just out @ Cretaceous Research Late Cretaceous (Cenomanian-Maastrichtian) planktic foraminifera from Goban Spur (DSDP sites 549 and 550): Biostratigraphic inferences Author(s) Fernanda Luft de Souza, Guilherme Krahl, Gerson Fauth Abstract: The planktic foraminifera from two sedimentary sequences of the Upper Cretaceous recovered by the Deep Sea Drilling Project (DSDP) Leg 80, Site 549 and Site 550 (Hole 550B) in the Goban Spur region were analysed in order to refine and integrate the zonal

Just out | South Pacific evidence for the long-term climate impact of the Cretaceous/Paleogene boundary event @ Earth-Science Reviews

Just out @ Earth-Science Reviews South Pacific evidence for the long-term climate impact of the Cretaceous/Paleogene boundary event Author(s) Kyle W.R. Taylor, Pi Suhr Willumsen, Christopher J. Hollis, Richard D. Pancost Abstract: The Cretaceous/Paleogene (K/Pg) boundary is well-represented across a range of depositional settings in New Zealand. Trends in fossil assemblages and marine lithofacies indicate that the K/Pg event was followed by a pronounced and long-term (~1 Myr) perturbation in climate and ocean conditions. These

Just out | Boron isotope-based seasonal paleo-pH reconstruction for the Southeast Atlantic – A multispecies approach using habitat preference of planktonic foraminifera @ Earth and Planetary Science Letters

Just out @ Earth and Planetary Science Letters Boron isotope-based seasonal paleo-pH reconstruction for the Southeast Atlantic – A multispecies approach using habitat preference of planktonic foraminifera Author(s) Markus Raitzsch, Jelle Bijma, Albert Benthien, Klaus-Uwe Richter, Grit Steinhoefel, Michal Kučera Abstract: The boron isotopic composition of planktonic foraminiferal shell calcite (δ11BCc) provides valuable information on the pH of ambient water at the time of calcification. Hence, δ11BCc of fossil surface-dwelling planktonic foraminifera can be used to reconstruct ancient

Just out | Coastal reconstruction of Vista Alegre, an ancient maritime Maya settlement @ Palaeogeography, Palaeoclimatology, Palaeoecology

Just out @ Palaeogeography, Palaeoclimatology, Palaeoecology Coastal reconstruction of Vista Alegre, an ancient maritime Maya settlement Author(s) Roy Jaijel, Jeffrey B. Glover, Dominique Rissolo, Patricia A. Beddows, Derek Smith, Zvi Ben-Avraham, Beverly Goodman Tchernov Abstract: Past coastal reconstruction is useful for understanding archaeological coastal settlements and predicting how coastal change might affect modern populations. The ancient Maritime Maya inhabitants of Vista Alegre in the northeastern Yucatan were active seafaring peoples. However, the past coastal landscape environmental history

Just out | Late Holocene sea-surface instabilities in the Disko Bugt area, west Greenland, in phase with δ18O-oscillations at Camp Century @ Paleoceanography and Paleoclimatology

Just out @ Paleoceanography and Paleoclimatology Late Holocene sea-surface instabilities in the Disko Bugt area, west Greenland, in phase with δ18O-oscillations at Camp Century Author(s) Estelle Allan, Anne de Vernal, Mads Faurschou Knudsen, Claude Hillaire-Marcel, Matthias Moros, Sofia Ribeiro, Marie-Michèle Ouellet-Bernier, Marit-Solveig Seidenkrantz Abstract: Palynological analyses of sediment core MSM343310 from Disko Bugt (68°38’861 N, 53°49’493 W) document decadal- to centennial-scale variability of sea-surface conditions during the last ca.3600 years. High

Just out | Competition between Silicifiers and Non-silicifiers in the Past and Present Ocean and Its Evolutionary Impacts @ Frontiers in Marine Science

Just out @ Frontiers in Marine Science Competition between Silicifiers and Non-silicifiers in the Past and Present Ocean and Its Evolutionary Impacts Author(s) Katharine R. Hendry,  Alan O. Marron,  Flora Vincent,  Daniel J. Conley,  Marion Gehlen,  Federico M. Ibarbalz,  Bernard Quéguiner and  Chris Bowler Abstract: Competition is a central part of the evolutionary process, and silicification is no exception: between biomineralized and non-biomineralized organisms, between siliceous and non-siliceous biomineralizing organisms,

Just out | Eocene greenhouse climate revealed by coupled clumped isotope-Mg/Ca thermometry @ PNAS

Just out @ PNAS Eocene greenhouse climate revealed by coupled clumped isotope-Mg/Ca thermometry Author(s) David Evans, Navjit Sagoo, Willem Renema, Laura J. Cotton, Wolfgang Müller, Jonathan A. Todd, Pratul Kumar Saraswati, Peter Stassen, Martin Ziegler, Paul N. Pearson, Paul J. Valdes and Hagit P. Affek Abstract: Past greenhouse periods with elevated atmospheric CO2 were characterized by globally warmer sea-surface temperatures (SST). However, the extent to which the high latitudes warmed to a greater degree

Just out | Paleoenvironmental and paleobiogeographical implications of the microfossil assemblage from the Late Cretaceous intertrappean beds of the Manawar area, District Dhar, Madhya Pradesh, Central India @ Historical Biology

Just out @ Historical Biology Paleoenvironmental and paleobiogeographical implications of the microfossil assemblage from the Late Cretaceous intertrappean beds of the Manawar area, District Dhar, Madhya Pradesh, Central India Author(s) Vivesh V. Kapur, Ashu Khosla & Nandita Tiwari Abstract: An assemblage of microfossils consisting of non-marine ostracods (Cypridopsis, Gomphocythere, Zonocypris, Eucypris, and Frambocythere), charophyte gyrogonites (Platychara), molluscs (Viviparus, Valvata, and Lymnaea), and fish remains (mainly Phareodus), is here reported from a new intertrappean locality near the town of Manawar,

Just out | Vital effects and ecologic adaptation of photosymbiont-bearing planktonic foraminifera during the Paleocene-Eocene Thermal Maximum, implications for paleoclimate @ Paleoceanography and Paleoclimatology

Just out @ Paleoceanography and Paleoclimatology Vital effects and ecologic adaptation of photosymbiont-bearing planktonic foraminifera during the Paleocene-Eocene Thermal Maximum, implications for paleoclimate Author(s) Weimin Si, Marie-Pierre Aubry Abstract: Stable isotope-size data of four major planktonic foraminifera lineages from the Paleocene-Eocene Thermal Maximum (PETM, ca. 56 Ma) at two locations (North Atlantic New Jersey shelf and Southern Ocean) are analyzed. By comparing changes in δ13C/ δ18O-size correlation prior to and

Just out | Eastern equatorial Pacific benthic foraminiferal distribution and deep water temperature changes during the early to middle Miocene @ Marine Micropaleontology

Just out @ Marine Micropaleontology Eastern equatorial Pacific benthic foraminiferal distribution and deep water temperature changes during the early to middle Miocene Author(s) Karlos G.D. Kochhann, Ann Holbourn, Wolfgang Kuhnt, Jian Xu Abstract: We investigate changes in benthic foraminiferal assemblages and estimate bottom water temperatures (BWT), based on Mg/Ca ratios of Oridorsalis umbonatus, over three selected intervals of major climate change during the late early to middle Miocene at Integrated Ocean