Article
Geosciences, Multidisciplinary
Karen Dybkjaer, Erik Skovbjerg Rasmussen, Tor Eidvin, Kari Grosfjeld, Fridtjof Riis, Stefan Piasecki, Kasia K. Sliwinska
Summary: The study presents an updated stratigraphic subdivision of the Oligocene to Pleistocene succession in the Norwegian Sea area, based on the newly proposed type well for the Molo Formation and additional data from Danish North Sea wells. The stratigraphy is composed of five sedimentary units separated by hiati, with dating based on correlation to the more complete Neogene succession in the Danish central North Sea area. The study establishes a robust stratigraphic framework of these units, based on a combination of dinocyst stratigraphy and seismic data.
GEOLOGICAL JOURNAL
(2021)
Article
Environmental Sciences
Jihad Rahmouna, Nadia Barhoun, Ahmed Rachid, Soukaina Targhi, Hannane Bahaj, Naima Berry, Mohamed Zakaria Yousfi
Summary: Biostratigraphic and paleoenvironmental analyses were conducted on the Upper Neogene sediments in the Gharb Basin (NW Morocco) to contribute to the reconstruction and evolution of the marine environment during the Upper Miocene-Pliocene. The study identified the succession of eight bioevents and characterized the Upper Tortonian, Messinian, and Zanclean based on planktonic foraminifera. The analysis of benthic foraminifera revealed changes in depositional conditions in terms of bathymetry and oxygen content from the Upper Tortonian to the Pliocene, influenced by tectonic activities, sea-level fluctuations, and climatic variations.
ENVIRONMENTAL EARTH SCIENCES
(2022)
Article
Geochemistry & Geophysics
Mengyuan Wang, Huanye Wang, Zhixin Zhu, Xiaoqiang Yang, Ke Zhang, Yancheng Zhang, Weiguo Liu, Zhuo Zheng, Yongqiang Zong, Zhonghui Liu
Summary: Research indicates that the evolution of Asian Summer Monsoon (ASM) during the Late Miocene and Pliocene experienced three phases: weak ASM strength around 6.5-5.6 million years ago, significantly enhanced strength between 5.6-4.3 million years ago, and a slightly reduced but strengthening trend after 4.3 million years ago. The study reveals a close relationship between ASM strength and tropical temperature, suggesting a developing influence of Walker Circulation on ASM strength during the Late Pliocene.
EARTH AND PLANETARY SCIENCE LETTERS
(2021)
Article
Multidisciplinary Sciences
B. -Th Karatsolis, B. C. Lougheed, D. De Vleeschouwer, J. Henderiks
Summary: This study found that ocean productivity abruptly declined about 4.6 million years ago, potentially due to reduced seasonality and monsoon intensity leading to decreased nutrient supply. The previous period of productivity bloom was attributed to an increase or redistribution of available nutrients. The decline in low-latitude ocean productivity was found to be linked to a weakened monsoon and decreased riverine nutrient supply.
NATURE COMMUNICATIONS
(2022)
Article
Geosciences, Multidisciplinary
Mahmoud Faris, Sherif Farouk, Sreepat Jain, Manal Shabaan
Summary: This study provides a review and evaluation of calcareous nannofossils from 28 wells in the Gulf of Suez, North Nile Delta, and surface sections in west central Sinai, Egypt. Fifteen calcareous nannofossil zones from Miocene to Pliocene are described and correlated regionally and globally. The study also briefly discusses the boundaries of the Miocene and Pliocene stages.
JOURNAL OF AFRICAN EARTH SCIENCES
(2023)
Article
Geography, Physical
Mariusz Niechwedowicz, Ireneusz Walaszczyk, Marcin Barski
Summary: The study of the upper Campanian-lowermost Maastrichtian epicontinental succession in central Poland using palynological and palynofacies analyses reveals that the phytoplankton assemblages and dinoflagellate cysts responded to relative sea-level fluctuations. The recorded sea-level changes were likely of eustatic origin, with certain dinocyst species indicating warmer or cooler-water conditions. The variation in palynofacies pattern was found to be influenced by changes in terrestrial organic-matter supply, potentially caused by fluctuations in river runoff.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2021)
Article
Ecology
Nina M. A. Wichern, Niels J. de Winter, Andrew L. A. Johnson, Stijn Goolaerts, Frank Wesselingh, Maartje F. Hamers, Pim Kaskes, Philippe Claeys, Martin Ziegler
Summary: Bivalves can be used as excellent climate archives to record seasonal environmental changes. This study investigates the suitability of the bivalve Angulus benedeni benedeni as a climate archive. The results show that the shells of this species are well-preserved and can provide seasonally resolved records across multiple years.
Article
Plant Sciences
Sabrina Natalia Fuentes
Summary: This study documents the distribution of dinoflagellate cysts in the YPF.Ch. PV. es-1 borehole, Peninsula Valdes, Argentina. The assemblages exhibit moderate to low diversity and are dominated by taxa of the order Gonyaulacales. Eight diagnostic events of highest occurrences (HOs) of dinoflagellate cyst taxa were identified, allowing for the subdivision of the sedimentary succession into two stratigraphic sections. The assemblages show similarity to those of the Northern Hemisphere, with the exception of one taxon that may indicate local paleoenvironmental conditions.
Article
Geography, Physical
F. Pilade, I. Vasiliev, D. Birgel, F. Dela Pierre, M. Natalicchio, A. Mancini, G. Carnevale, R. Gennari
Summary: This study uses alkenone-based proxies and other data to reconstruct surface water temperatures and paleoenvironmental conditions in the Mediterranean basin during the late Miocene to early Pliocene period. The results suggest that the Mediterranean basin gradually returned to marine conditions before the end of the late Miocene, and fully marine conditions were established in the early Pliocene. This highlights the importance of alkenone-based proxies in environmental reconstruction, especially when fossil records of primary producers are limited.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2023)
Article
Geosciences, Multidisciplinary
Haiyang Cao, Siding Jin, Mingcai Hou, Si Chen, Yan Liu, Anqing Chen
Summary: Several research works have shown that climate variations are related to orbital parameters, with the -1.2-Myr obliquity modulation cycle playing a significant role in the formation of glacio-eustasy sequences during icehouse periods. In this study, the glacio-eustasy third-order sequences in the Qiongdongnan Basin were analyzed, and a prominent -1.2-Myr periodicity was identified. An astronomical time scale was developed for this period, and high-resolution natural gamma-ray data was used to analyze cyclostratigraphy. The results showed a correlation between sedimentary cycles and astronomical periods, with the -1.2-Myr cycle being the most important driving force for sequence development and sea-level changes.
MARINE AND PETROLEUM GEOLOGY
(2022)
Article
Paleontology
Enrique Correa, Javier Helenes, Andres Pardo-Trujillo
Summary: Changes in dinoflagellate assemblages in western Colombia indicate regional paleoceanographic events. The study reveals marine deposition from the middle to late Miocene, with more warm water taxa in the dinoflagellate cyst assemblages. The dominance of different taxa in different time intervals is correlated with global cooling and tropical climate events.
MARINE MICROPALEONTOLOGY
(2021)
Article
Geochemistry & Geophysics
Tara N. Jonell, Liviu Giosan, Peter D. Clift, Andrew Carter, Lisa Bretschneider, Ed C. Hathorne, Marta Barbarano, Eduardo Garzanti, Giovanni Vezzoli, Thet Naing
Summary: This study presents the first comprehensive analysis of the Holocene Irrawaddy megadelta, providing insights into the late Neogene evolution of the Irrawaddy River. The results show that the river's evolution is more in line with regional evidence for kinematic reorganization during late-stage India-Asia collision. The study also highlights the importance of late Miocene basin inversion and uplift along the Sagaing Fault in shaping the modern geometry and provenance of the Irrawaddy River.
EARTH AND PLANETARY SCIENCE LETTERS
(2022)
Article
Geosciences, Multidisciplinary
H. L. Ford, N. J. Burls, P. Jacobs, A. Jahn, R. P. Caballero-Gill, D. A. Hodell, A. Fedorov
Summary: A study using carbon isotope patterns and climate modeling suggests that there was substantial deep water formation in the North Pacific during the mid-Pliocene Warm Period. This research provides insights into future climate change and the consequences of oceanic uptake of anthropogenic carbon.
Article
Geosciences, Multidisciplinary
Peter Lunt
Summary: This review examines data on the Base Miocene Unconformity and the tectono-stratigraphic development of the Sabah to Palawan region. It challenges previous plate tectonic models and proposes that the plate drift in the South China Sea was not linked to subduction processes in western Sabah. The absence of plate docking and compression further supports this proposal.
JOURNAL OF ASIAN EARTH SCIENCES
(2022)
Article
Biology
Safia Al Menoufy, Mohamed Abd El-Aal, Abeer Shreif
Summary: Cuttings and logs from four boreholes in the Mediterranean Sea were examined to determine their lithostratigraphy, biostratigraphy, and paleoenvironment. The age of the studied boreholes was determined to be late Miocene-Early Pliocene. The distribution of foraminiferal assemblages and planktic/benthic ratios provide information on the progression of deltaic facies and sea-level change.
HISTORICAL BIOLOGY
(2023)
Article
Geography, Physical
Nicolas Van Nieuwenhove, Astrid Baumann, Jens Matthiessen, Sophie Bonnet, Anne de Vernal
Article
Multidisciplinary Sciences
Ruediger Stein, Kirsten Fahl, Michael Schreck, Gregor Knorr, Frank Niessen, Matthias Forwick, Catalina Gebhardt, Laura Jensen, Michael Kaminski, Achim Kopf, Jens Matthiessen, Wilfried Jokat, Gerrit Lohmann
NATURE COMMUNICATIONS
(2016)
Article
Paleontology
Michael Schreck, Seung-Il Nam, Caroline Clotten, Kirsten Fahl, Stijn De Schepper, Matthias Forwick, Jens Matthiessen
MARINE MICROPALEONTOLOGY
(2017)
Article
Geography, Physical
A. Kremer, R. Stein, K. Fahl, Z. Ji, Z. Yang, S. Wiers, J. Matthiessen, M. Forwick, L. Lowemark, M. O'Regan, J. Chen, I. Snowball
QUATERNARY SCIENCE REVIEWS
(2018)
Review
Geography, Physical
Jens Matthiessen, Michael Schreck, Stijn De Schepper, Coralie Zorzi, Anne de Vernal
QUATERNARY SCIENCE REVIEWS
(2018)
Article
Multidisciplinary Sciences
J. E. Wollenburg, C. Katlein, G. Nehrke, E. -M. Noethig, J. Matthiessen, D. A. Wolf-Gladrow, A. Nikolopoulos, F. Gazquez-Sanchez, L. Rossmann, P. Assmy, M. Babin, F. Bruyant, M. Beaulieu, C. Dybwad, I. Peeken
SCIENTIFIC REPORTS
(2018)
Article
Plant Sciences
Anne de Vernal, Frederique Eynaud, Maryse Henry, Audrey Limoges, Laurent Londeix, Jens Matthiessen, Fabienne Marret, Vera Pospelova, Taoufik Radi, Andre Rochon, Nicolas Van Nieuwenhove, Sebastien Zaragosi
Article
Plant Sciences
Coralie Zorzi, Martin J. Head, Jens Matthiessen, Anne de Vernal
REVIEW OF PALAEOBOTANY AND PALYNOLOGY
(2019)
Article
Paleontology
Nicolas Van Nieuwenhove, Martin J. Head, Audrey Limoges, Vera Pospelova, Kenneth N. Mertens, Jens Matthiessen, Stijn De Schepper, Anne de Vernal, Frederique Eynaud, Laurent Londeix, Fabienne Marret, Aurelie Penaud, Taoufik Radi, Andre Rochon
MARINE MICROPALEONTOLOGY
(2020)
Article
Environmental Sciences
Allyson Tessin, Christian Marz, Marie-Amelie Blais, Hans-Juergen Brumsack, Jens Matthiessen, Matt O'Regan, Bernhard Schnetger
GLOBAL BIOGEOCHEMICAL CYCLES
(2020)
Article
Multidisciplinary Sciences
Anne de Vernal, Claude Hillaire-Marcel, Cynthia Le Duc, Philippe Roberge, Camille Brice, Jens Matthiessen, Robert F. Spielhagen, Ruediger Stein
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2020)
Article
Multidisciplinary Sciences
Walter Geibert, Jens Matthiessen, Ingrid Stimac, Jutta Wollenburg, Ruediger Stein
Summary: The study provides evidence for at least two periods in the past when the Arctic Ocean and Nordic seas were covered by an extensive ice shelf and filled with fresh water, causing a widespread absence of thorium-230 in marine sediments. This suggests a revision of sea-level reconstructions may be needed and indicates that large masses of fresh water could be delivered to the North Atlantic Ocean on very short timescales.
Letter
Multidisciplinary Sciences
Walter Geibert, Jens Matthiessen, Jutta Wollenburg, Ruediger Stein
Article
Environmental Sciences
Jutta Erika Wollenburg, Jens Matthiessen, Christoph Vogt, Gernot Nehrke, Hendrik Grotheer, Dorothee Wilhelms-Dick, Walter Geibert, Gesine Mollenhauer
Summary: Calcareous foraminifera are important for marine radiocarbon chronologies and paleo-proxies, but their shells can undergo post-mortem alteration, including addition of authigenic calcite, which impacts proxy records. In the Arctic Ocean, authigenic calcite overgrowth on foraminifera has been found to be C-13-enriched and can lead to older apparent radiocarbon ages. This study demonstrates that this C-13-enriched calcite affects a large proportion of planktonic foraminifera in the Arctic Basin, raising concerns about the accuracy of the chronology and stable isotope-based proxy records in this region, with implications for paleoclimate models.
COMMUNICATIONS EARTH & ENVIRONMENT
(2023)
Article
Geosciences, Multidisciplinary
Melanie Wary, Frederique Eynaud, Didier Swingedouw, Valerie Masson-Delmotte, Jens Matthiessen, Catherine Kissel, Jena Zumaque, Linda Rossignol, Jean Jouzel
CLIMATE OF THE PAST
(2017)
Article
Plant Sciences
Gar W. Rothwell, Ruth A. Stockey
Summary: This study utilizes anatomical analysis of fossils from Vancouver Island, Canada, to support the development of a whole plant concept for the Eocene species of Gleichenia and provide data for the first organismal concept of an extinct species of Gleichenia from the Cenozoic fossil record. The findings suggest that the characteristics of the Gleicheniaceae family were present during the Cretaceous and Paleogene periods, with modern species well-established and diversifying.
REVIEW OF PALAEOBOTANY AND PALYNOLOGY
(2024)
Article
Plant Sciences
Kathrin Ganz, Cesar Morales-Molino, Erika Gobet, Dmytro Kiosak, Nadezhda Kotova, Jacqueline van Leeuwen, Sergey Makhortykh, Christoph Schworer, Willy Tinner
Summary: This study presents a palaeoecological reinvestigation from the Kardashynskyi mire in southern Ukraine, reconstructing the vegetation dynamics, fire history, and land use for the past 8300 years. The results show that both climate and human activities have driven the vegetation changes, and the remaining special vegetation types are severely threatened under current conditions.
REVIEW OF PALAEOBOTANY AND PALYNOLOGY
(2024)
Article
Plant Sciences
Willem O. van der Knaap, Bas van Geel, Jacqueline F. N. van Leeuwen, Frans Roescher, Dick Mol
Summary: Pollen analysis of fossilized teeth from a giant deer found in The Netherlands provides insights into the diet, landscape, and climate of the specimen. The study suggests that the giant deer most likely lived during the early Eemian or an early Weichselian interstadial.
REVIEW OF PALAEOBOTANY AND PALYNOLOGY
(2024)
Article
Plant Sciences
Yun Guo, Yu Zhou, Josef Psenicka, Jiri Bek, Jana Votockova Frojdova, Zhuo Feng
Summary: A new species of adpressed leptosporangiate fern, Szea yunnanensis sp. nov., is described from Yunnan Province, Southwest China. The fronds of this new species have unique characteristics such as fertile pinnules with triangular to falcate shape and abaxial sori arranged in one row on each side of the midvein.
REVIEW OF PALAEOBOTANY AND PALYNOLOGY
(2024)
Article
Plant Sciences
Adele C. M. Julier, Glynis J. Humphrey, Caitlin Dixon, Lindsey Gillson
Summary: The relationships between woody vegetation cover and fire, climate, herbivory, and human activities in African savanna ecosystems are complex. Fire suppression policies implemented in a national park in northeast Namibia from 1888 to 2005 did not lead to noticeable decreases in fire or enhanced tree recruitment, suggesting that fire occurrence in savanna ecosystems is more closely linked to climate than management. Fire management should adapt to rainfall variability and integrate customs of early dry season burning.
REVIEW OF PALAEOBOTANY AND PALYNOLOGY
(2024)
Article
Plant Sciences
Milan Libertin, Jiri Kvacek, Jiri Bek
Summary: This paper revises the genus Aberlemnia from the Early Devonian of Scotland based on its type-material A. caledonica and describes a new species, Aberlemnia krizii sp. nov, from the Silurian of Czechia. The study provides detailed diagnoses and highlights the differences between the two species. Aberlemnia is positioned on an evolutionary clade line leading to the Lycophytina.
REVIEW OF PALAEOBOTANY AND PALYNOLOGY
(2024)