Article
Geosciences, Multidisciplinary
Christian Berndt, Sverre Planke, Carlos A. Alvarez A. Zarikian, Joost Frieling, Morgan T. T. Jones, John M. M. Millett, Henk Brinkhuis, Stefan Bunz, Henrik H. H. Svensen, Jack Longman, Reed P. P. Scherer, Jens Karstens, Ben Manton, Mei Nelissen, Brandon Reed, Jan Inge Faleide, Ritske S. S. Huismans, Amar Agarwal, Graham D. M. Andrews, Peter Betlem, Joyeeta Bhattacharya, Sayantani Chatterjee, Marialena Christopoulou, Vincent J. J. Clementi, Eric C. C. Ferre, Irina Y. Y. Filina, Pengyuan Guo, Dustin T. T. Harper, Sarah Lambart, Geoffroy Mohn, Reina Nakaoka, Christian Tegner, Natalia Varela, Mengyuan Wang, Weimu Xu, Stacy L. L. Yager
Summary: Widespread shallow-water hydrothermal venting in the North Atlantic, probably a source of methane, coincided with the onset of the Palaeocene-Eocene Thermal Maximum. This venting occurred around 56 million years ago and was caused by carbon input into the ocean and atmosphere, leading to a global warming event. The vents erupted in shallow water, resulting in the direct release of volatile emissions without oxidation to CO2, and played a key role in the carbon-cycle perturbation.
Article
Geosciences, Multidisciplinary
Thomas M. Gernon, Ryan Barr, J. Godfrey Fitton, Thea K. Hincks, Derek Keir, Jack Longman, Andrew S. Merdith, Ross N. Mitchell, Martin R. Palmer
Summary: Plume magmatism and continental breakup led to the opening of the northeast Atlantic Ocean during the globally warm early Cenozoic. This warmth culminated in a transient hyperthermal event called the Palaeocene-Eocene Thermal Maximum (PETM) 56 million years ago. Research suggests that volcanic activity played a significant role in triggering this event by releasing large amounts of carbon into the ocean and atmosphere.
Article
Geochemistry & Geophysics
Jack Longman, Thomas M. Gernon, Martin R. Palmer, Morgan T. Jones, Ella W. Stokke, Henrik H. Svensen
Summary: The PETM was a period of intense global warming possibly linked to NAIP volcanism, resulting in carbon sequestration and the recovery to more temperate climate conditions.
EARTH AND PLANETARY SCIENCE LETTERS
(2021)
Article
Geochemistry & Geophysics
Pengfei Xue, Liao Chang, Ellen Thomas
Summary: Reconstruction of oceanic redox conditions during the PETM provides important information about its triggers and biodiversity changes. Our study on magnetofossils at IODP Sites U1409 and U1403 shows variations in magnetic properties and crystal morphologies, allowing us to trace palaeoredox changes in the Northwest Atlantic. Our records indicate a gradual decrease in deep-sea oxygenation several hundred thousand years before the PETM, reaching a minimum 50 ky before the event, followed by a broad increase. These changes likely reflect shifts in deep-sea circulation and ocean temperature, suggesting the role of ocean circulation in the carbon release during the PETM onset.
EARTH AND PLANETARY SCIENCE LETTERS
(2023)
Article
Environmental Sciences
Mustafa Y. Kaya, Guillaume Dupont-Nivet, Joost Frieling, Chiara Fioroni, Alexander Rohrmann, Sevinc Ozkan Altiner, Ezgi Vardar, Hakan Tanyas, Mehmut Mamtimin, Guo Zhaojie
Summary: According to a palaeogeographic reconstruction and multi-proxy data from a sedimentary sequence in the Tarim Basin, China, the Eurasian Epicontinental Sea sequestered 720-1300 Gt of organic carbon during the Palaeocene-Eocene Thermal Maximum. This study provides important insights into future global warming and carbon cycle recovery.
COMMUNICATIONS EARTH & ENVIRONMENT
(2022)
Article
Geochemistry & Geophysics
Pengfei Xue, Liao Chang, Zhaowen Pei, Richard J. Harrison
Summary: The origin of giant magnetofossils has remained a mystery due to the absence of modern analogues. This study discovered abundant giant magnetofossils in North Atlantic marine sediments, not only during the Palaeocene-Eocene Thermal Maximum but also before and after this period. The findings suggest that giant biogenic magnetite crystals were not exclusively produced during ancient hyperthermal events.
EARTH AND PLANETARY SCIENCE LETTERS
(2022)
Article
Multidisciplinary Sciences
Anastasia Stefanaki, Tilmann Walter, Tinde van Andel
Summary: This article investigates the introduction history and taxonomic status of the wild tulip. It reveals how tulips were introduced from the Mediterranean to northern Europe and became naturalized, and discusses the uncertainty of its taxonomic status. It highlights the importance of botanical history in understanding the complex taxonomy of naturalized cultivated plants.
SCIENTIFIC REPORTS
(2022)
Article
Plant Sciences
Luke Mander, Carlos Jaramillo, Francisca Oboh-Ikuenobe
Summary: Fossil pollen and spores provide crucial information about the geological history of tropical vegetation. However, the large number of pollen and spore types encountered makes taxonomy and classification challenging. This study focuses on the Upper Paleocene-Lower Eocene sediments in southeastern Nigeria, describing a palynoflora consisting of 29 spores, two gymnosperm pollen grains, and 138 angiosperm pollen grains. The samples suggest an increase in diversity from the Paleocene to the Eocene in the region.
Article
Ecology
Alvaro Enriquez-de-Salamanca
Summary: This study evaluates the impact of human activities on vegetation and analyzes the degree of protection provided by protected areas. The results show that agriculture is the main cause of vegetation synanthropisation, and protected areas only include a small percentage of vegetation with reduced synanthropisation. Therefore, the synanthropisation of vegetation should be considered in territorial planning and environmental assessment.
Article
Geosciences, Multidisciplinary
Muhammad Azhar Farooq Swati, Muhammad Hanif, Muhammad Haneef, Abdus Saboor
Summary: This study establishes the biostratigraphic framework of the Upper Palaeocene-Lower Eocene rocks in the Upper Indus Basin, Pakistan, Eastern Tethys, using three different fossil groups from the Patala Formation. By integrating biozones and widely used biostratigraphic criteria, the Palaeocene-Eocene boundary interval was identified, providing a basis for local and Tethys-wide correlations.
GEOLOGICAL JOURNAL
(2021)
Review
Geology
Ivan I. Nesterov, Pavel Smirnov, Alexandr O. Konstantinov, Hans-Juergen Gursky
Summary: This report provides a detailed overview of the geological structure and resource potential of biosiliceous sedimentary rocks in Western Siberia. Siliceous rocks are a significant type of non-metallic mineral resources in the region, with a high potential for regional industries. A new structural zoning of the West Siberian Province is proposed, with the Transuralian zone showing the most favorable mining conditions. The Ob and Nadym-Taz zones have a more complex structure, limiting the development of siliceous rock deposits in northwestern Siberia due to high heterogeneity of the strata and complex geocryological conditions.
INTERNATIONAL GEOLOGY REVIEW
(2021)
Article
Energy & Fuels
Dinesh Kumar, Santanu Ghosh, Balram Tiwari, Atul Kumar Varma, Runcie Paul Mathews, Rimpy Chetia
Summary: This study investigates the Palaeocene-Eocene organic sedimentary archives from the Palana Formation in the Bikaner-Nagaur Basin, Rajasthan, India, using an array of elemental and biogeochemical proxies. The findings suggest that the organic matter was mainly sourced from C3 plants, including a significant contribution from mangroves.
INTERNATIONAL JOURNAL OF COAL GEOLOGY
(2021)
Article
Plant Sciences
Anne-Marie P. Tosolini, David J. Cantrill, Vera A. Korasidis, Jane E. Francis
Summary: The late Palaeocene Cross Valley Formation on Seymour Island in Antarctica is one of the few plant fossils from this period in the region, and it exhibits a significant diversity of angiosperms. Comparisons with similar forests in South America and Australasia demonstrate the unique characteristics of the Cross Valley Flora, including the dominance of angiosperms over conifers and the presence of dynamic forests that grew on active volcanoes. These findings provide insights into the extinct Valdivian cool-temperate rainforests and highlight the diversity contrast between the east and west Antarctic Peninsula.
REVIEW OF PALAEOBOTANY AND PALYNOLOGY
(2023)
Article
Agronomy
Gabriele Messori, Minchao Wu, Giulia Vico, Vera Melinda Galfi
Summary: Jet stream variability plays an important role in vegetation activity in Europe, with correlations found between jet latitude anomalies and vegetation greenness anomalies. The strength and sign of these correlations depend on location and time of the year, and are mediated by temperature, soil moisture, and downward surface solar radiation. The link between jet latitude anomalies and vegetation greenness is specific to the climate zone, landclass, and subperiod within the growing season.
AGRICULTURAL AND FOREST METEOROLOGY
(2022)
Article
Geography, Physical
Ian R. K. Sluiter, Guy R. Holdgate, Tammo Reichgelt, David R. Greenwood, A. Peter Kershaw, Nick L. Schultz
Summary: This study presents a composite terrestrial pollen record of vegetation and climate change in the Gippsland Basin of south-eastern Australia during the late Eocene through Oligocene. It reveals mesothermic climates with an average mean annual temperature of 16 degrees C, evidencing a cooling trend through the Eocene-Oligocene Transition (EOT) and subsequent warming cycles through the Oligocene. The study also highlights the importance of a warm period in the Early to early Late Oligocene accompanied by increases in Araucariaceae pollen.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2022)
Article
Geosciences, Multidisciplinary
Petr Kraft, Zlatko Kvacek
Article
Paleontology
Vasilis Teodoridis, Zlatko Kvacek, Marco Sami
NEUES JAHRBUCH FUR GEOLOGIE UND PALAONTOLOGIE-ABHANDLUNGEN
(2017)
Article
Paleontology
Karel Mach, Karel Zak, Vasilis Teodoridis, Zlatko Kvacek
NEUES JAHRBUCH FUR GEOLOGIE UND PALAONTOLOGIE-ABHANDLUNGEN
(2017)
Article
Geography, Physical
Vasilis Teodoridis, Angela A. Bruch, Elena Vassio, Edoardo Martinetto, Zlatko Kvacek, Leon Stuchlik
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2017)
Article
Plant Sciences
Loredana Macaluso, Edoardo Martinetto, Bartolomeo Vigna, Adele Bertini, Antonella Cilia, Vasilis Teodoridis, Zlatko Kvacek
REVIEW OF PALAEOBOTANY AND PALYNOLOGY
(2018)
Article
Plant Sciences
Steven R. Manchester, Kathleen B. Pigg, Zlatko Kvacek, Melanie L. DeVore, Richard M. Dillhoff
INTERNATIONAL JOURNAL OF PLANT SCIENCES
(2018)
Article
Paleontology
Dimitra Mantzouka, Jakub Sakala, Zlatko Kvacek, Efterpi Koskeridou, Chryssanthi Ioakim
Article
Paleontology
Zlatko Kvacek, Vasilis Teodoridis
NEUES JAHRBUCH FUR GEOLOGIE UND PALAONTOLOGIE-ABHANDLUNGEN
(2019)
Article
Biodiversity Conservation
Zlatko Kvacek, Vasilis Teodoridis, Thomas Denk
PALAEOBIODIVERSITY AND PALAEOENVIRONMENTS
(2020)
Proceedings Paper
Environmental Sciences
Dimitra Mantzouka, Jakub Sakala, Zlatko Kvacek, Efterpi Koskeridou, Vasileios Karakitsios
WORLD MULTIDISCIPLINARY EARTH SCIENCES SYMPOSIUM (WMESS 2018)
(2019)
Article
Paleontology
Heinrich Winterscheid, Zlatko Kvacek, Jiri Vana, Michael S. Ignatov
PALAEONTOGRAPHICA ABTEILUNG B-PALAEOPHYTOLOGIE PALAEOBOTANY-PALAEOPHYTOLOGY
(2018)
Article
Geosciences, Multidisciplinary
Vasilis Teodoridis, Zlatko Kvacek, Karel Mach, Jakub Sakala, Jirina Daskova, Petr Rojik
BULLETIN OF GEOSCIENCES
(2017)
Article
Geosciences, Multidisciplinary
Zlatko Kvacek, Miroslav Bubik
BULLETIN OF GEOSCIENCES
(2016)
Article
Paleontology
Heinrich Winterscheid, Zlatko Kvacek
PALAEONTOGRAPHICA ABTEILUNG B-PALAEOPHYTOLOGIE PALAEOBOTANY-PALAEOPHYTOLOGY
(2016)
Article
Paleontology
Lutz Kunzmann, Zlatko Kvacek, Vasilis Teodoridis, Christian Mueller, Karolin Moraweck
PALAEONTOGRAPHICA ABTEILUNG B-PALAEOPHYTOLOGIE PALAEOBOTANY-PALAEOPHYTOLOGY
(2016)