Article
Geology
L. M. E. Percival, E. Ownsworth, S. A. Robinson, D. Selby, S. Goderis, P. Claeys
Summary: This study investigates the impact of silicate weathering on environmental change during the Valanginian Weissert Event, and provides the first osmium isotope (Os-187/Os-188) data sets for the late Berriasian-Valanginian interval. The results suggest a possible increase in weathering and nutrient runoff during the late Berriasian, followed by erosion of Parana-Etendeka basalts during the Valanginian. The enhanced global silicate weathering triggered cooling and potential ocean fertilization, highlighting a unique mechanism linking LIP formation with environmental change.
Article
Geography, Physical
Jozsef Palfy, Zsofia Kovacs, Attila Demeny, Zsolt Vallner
Summary: This study presents new sedimentological, stable isotope, and cyclostratigraphic data from sections in the Transdanubian Range, Hungary, capturing the termination of uppermost Triassic Dachstein Limestone and the onset of Hettangian sedimentation following a hiatus. The abrupt negative carbon isotope shift at the Triassic-Jurassic boundary in the studied sections suggests an abrupt change in carbonate production related to end-Triassic extinction events. Chemostratigraphy allows for correlation with sections elsewhere, highlighting the role of submarine erosion and an ecological collapse of reefs in the transformation of the carbonate platform architecture.
GLOBAL AND PLANETARY CHANGE
(2021)
Article
Soil Science
Yanlan Huang, Zhongmin Dai, Jiahui Lin, Daming Li, Huicai Ye, Randy A. Dahlgren, Jianming Xu
Summary: This study investigated the effects of labile C (glucose) on soil P transformations and availability in a P-deficient soil planted with maize. The results showed that glucose significantly increased available P concentrations and stimulated the growth of key P-solubilizing microorganisms in the soil. Co-occurrence network analysis revealed enhanced interactions between phoD harboring bacterial taxa with glucose addition.
SOIL BIOLOGY & BIOCHEMISTRY
(2021)
Article
Geochemistry & Geophysics
Youngji Ha, M. Satish-Kumar, Kye-Hun Park, Yong-Sun Song, Shuwen Liu
Summary: The age-unknown Hyangsanni Dolomite in the Okcheon metamorphic belt in central South Korea is thought to belong to the sedimentary sequence of the Neoproterozoic, deposited in a continental margin environment. Elemental and isotopic analyses suggest the influence of terrigenous materials and the presence of magmatism related to continental rifting in the deposition environment. The flat REE + Y patterns and Ce negative anomaly of the samples indicate a rift basin connected to the ocean.
Article
Geography, Physical
Juan Li, Xiumian Hu, Eduardo Garzanti, Marcelle BouDagher-Fadel
Summary: This study presents new biostratigraphic, sedimentological, and carbon-isotopic data to constrain the precise stratigraphic position of the Paleocene/Eocene boundary and investigate environmental changes across the PETM. It is found that the temporary demise of the carbonate ramp during the PETM is attributed to increased siliciclastic supply driven by changes in regional hydrology.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2021)
Article
Multidisciplinary Sciences
Zhongyu Xiong, Xiaohui Liu, Lin Ding, Alex Farnsworth, Robert A. Spicer, Qiang Xu, Paul Valdes, Songlin He, Deng Zeng, Chao Wang, Zhenyu Li, Xudong Guo, Tao Su, Chenyuan Zhao, Houqi Wang, Yahui Yue
Summary: Studying the Paleogene topography and climate of central Tibet provides insights into collisional tectonic mechanisms and their connection to climate and biodiversity. Evidence suggests that the Lunpola Basin in central Tibet experienced significant surface uplift of at least 2.0 kilometers over the past 38 million years, transforming it into a plateau.
Article
Geography, Physical
Hanxiao Li, Hanxinshuo Dong, Haishui Jiang, Paul B. Wignall, Yanlong Chen, Muhui Zhang, Zhumin Ouyang, Xianlang Wu, Baojin Wu, Zaitian Zhang, Xulong Lai
Summary: This study establishes an integrated timescale for the South Qinling Belt based on conodont biostratigraphy and carbon isotope records. It provides a high-resolution age model for the region and reveals the connection between the South Qinling Belt and the Northern Yangtze Platform.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2022)
Article
Soil Science
Jiwen Cui, Shuai Zhang, Xiya Wang, Xinpeng Xu, Chao Ai, Guoqing Liang, Ping Zhu, Wei Zhou
Summary: This study investigated the effects of different fertiliser practices on the limitation of soil microorganisms by elemental availability. The results showed that the soil microbial community as a whole was limited by the availability of carbon and phosphorus. Nitrogen fertiliser application significantly increased the limitation degree of phosphorus availability. Changes in microbial community structure may hinder the increase in soil organic matter. Microorganisms adjust their abundance of functional genes to absorb and retain insufficient phosphorus while accelerating the turnover of excess nitrogen.
Review
Plant Sciences
Jie Liang, Ken W. Krauss, John Finnigan, Hilary Stuart-Williams, Graham D. Farquhar, Marilyn C. Ball
Summary: The limitations and utility of three measures of water use characteristics were evaluated. The measure partial differential E/ partial differential A$$ \partial E/\partial A $$ was found to provide an integrated representation of carbon gain relative to water use under varying environmental conditions. This mechanistic means of predicting water use characteristics adds depth to understanding how plants balance water expenditure against carbon gain.
Review
Chemistry, Multidisciplinary
Alexandre Labiche, Augustin Malandain, Maxime Molins, Frederic Taran, Davide Audisio
Summary: In contrast to stable and natural abundant carbon-12, the synthesis of organic molecules with carbon (radio) isotopes requires careful planning and optimization due to the challenges of radiochemical requirements. Recently, carbon isotope exchange technologies have emerged as effective methods for late-stage labeling, utilizing primary radiolabeled building blocks and various activation processes. This review provides a brief overview of these technologies and their potential impact on radiosynthesis.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Geology
Matthieu Deville de Periere, Patrice Brenac, Ibrahim Hilali, Feng Lu, Waheed Albasrawi
Summary: This article reconstructs the evolution of the carbonate shelf on the Arabian Platform during the Valanginian-Hauterivian period in Saudi Arabia, using integrated detailed facies analysis, biostratigraphy, and carbon isotopes. The study reveals that the study area was dominated by dolomitized clay-prone microbial intertidal mudstones, which transitioned into low-energy inner ramp limestones. During the late Valanginian, the platform experienced maximum flooding, with deposits containing abundant Lithocodium/Bacinella and a significant increase in d13C values.
CRETACEOUS RESEARCH
(2023)
Article
Geography, Physical
Marco Brandano, Irene Cornacchia, Rita Catanzariti, Laura Tomassetti
Summary: The stratigraphic evolution of the Guadagnolo Formation was studied in the central Apennines, focusing on the transition between the Latium-Abruzzi Platform and the Umbria Sabina Basin. The analysis included facies and stable isotope analysis, with evidence of the Monterey event and the effects of global cooling after 14 Ma on the depositional environment.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2021)
News Item
Chemistry, Multidisciplinary
Karoline T. Neumann, Troels Skrydstrup
Summary: The direct carbon isotope exchange reaction on alpha-amino acids is highly desirable as it allows for the direct formation of C-11, C-13, and C-14-labelled alpha-amino acids. This new method involving aldehyde-catalysed carboxylate exchange with isotopically labelled *CO2 bypasses the need for multiple synthetic steps and harsh conditions.
Article
Ecology
Jing Hu, Lilit G. Vardanyan, Odi Villapando, Rupesh Bhomia, Patrick W. Inglett, Xiaofei Li, Gary Feng, K. Ramesh Reddy
Summary: This study compares the seasonal and spatial patterns of surface water quality in two flow-ways and assesses the impact of extreme storm events. The results show that different plant types and seasonal variations have varying effects on surface water quality, and storm events have adverse effects on surface water quality.
ECOLOGICAL ENGINEERING
(2023)
Article
Geosciences, Multidisciplinary
Zheng Li, Jun Zhong, Li Si-Liang, Yun-Chao Lang, Xuetao Zhu, Shuai Chen
Summary: The study investigates the effects of hydrological changes on chemical weathering by analyzing water samples from the Jialing River. The research estimates the weathering rates of carbonate and silicate, as well as the CO2 consumption flux. The results highlight the significant role of pyrite oxidation in carbon cycling and emphasize the influence of hydrological variabilities on solute generation and transport.
Article
Geosciences, Multidisciplinary
Anne-Sabine Grosjean, Bernard Pittet, Veronique Gardien, Philippe-Herve Leloup, Gweltaz Maheo, Jackeline Barraza Garcia
Article
Geosciences, Multidisciplinary
Rogerio Bordalo da Rocha, Emanuela Mattioli, Luis Vitor Duarte, Bernard Pittet, Serge Elmi, Rene Mouterde, Maria Cristina Cabral, Maria Jose Comas-Rengifo, Juan Jose Gomez, Antonio Goy, Stephen P. Hesselbo, Hugh C. Jenkyns, Kate Littler, Samuel Mailliot, Luiz Carlos Veiga de Oliveira, Maria Luisa Osete, Nicola Perilli, Susana Pinto, Christiane Ruget, Guillaume Suan
Article
Geosciences, Multidisciplinary
Emmanuel L. O. Martin, Bernard Pittet, Juan-Carlos Gutierrez-Marco, Jean Vannier, Khadija El Hariri, Rudy Lerosey-Aubril, Moussa Masrour, Hendrik Nowak, Thomas Servais, Thijs R. A. Vandenbroucke, Peter Van Roy, Romain Vaucher, Bertrand Lefebvre
Article
Geography, Physical
J. Plancq, E. Mattioli, B. Pittet, F. Baudin, L. V. Duarte, M. Boussaha, V. Grossi
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2016)
Review
Geology
Romain Vaucher, Bernard Pittet, Helene Hormiere, Emmanuel L. O. Martin, Bertrand Lefebvre
Article
Geosciences, Multidisciplinary
Romain Vaucher, Bernard Pittet, Thomas Humbert, Serge Ferry
GEO-MARINE LETTERS
(2018)
Article
Geosciences, Multidisciplinary
Romain Vaucher, Bernard Pittet, Sophie Passot, Philippe Grandjean, Thomas Humbert, Pascal Allemand
BSGF-EARTH SCIENCES BULLETIN
(2018)
Article
Geography, Physical
Fabienne Giraud, Bernard Pittet, Daniele Grosheny, Francois Baudin, Christophe Lecuyer, Tatsuhiko Sakamoto
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2018)
Article
Geology
Farid Saleh, Bernard Pittet, Jean-Philippe Perrillat, Bertrand Lefebvre
Article
Geology
Farid Saleh, Yves Candela, David A. Harper, Marika Polechova, Bertrand Lefebvre, Bernard Pittet
Article
Geology
Alessandro Menini, Emanuela Mattioli, Jorge E. Spangenberg, Bernard Pittet, Guillaume Suan
NEWSLETTERS ON STRATIGRAPHY
(2019)
Article
Multidisciplinary Sciences
Jean Vannier, Muriel Vidal, Robin Marchant, Khadija El Hariri, Khaoula Kouraiss, Bernard Pittet, Abderrazak El Albani, Arnaud Mazurier, Emmanuel Martin
SCIENTIFIC REPORTS
(2019)
Article
Geochemistry & Geophysics
Farid Saleh, Jonathan B. Antcliffe, Bertrand Lefebvre, Bernard Pittet, Lukas Laibl, Francesc Perez Peris, Lorenzo Lustri, Pierre Cueriau, Allison C. Daley
EARTH AND PLANETARY SCIENCE LETTERS
(2020)
Article
Geosciences, Multidisciplinary
H. Baghli, E. Mattioli, J. E. Spangenberg, M. Bensalah, F. Arnaud-Godet, B. Pittet, G. Suan
Article
Ecology
Baptiste Sucheras-Marx, Emanuela Mattioli, Pascal Allemand, Fabienne Giraud, Bernard Pittet, Julien Plancq, Gilles Escarguel
Article
Geography, Physical
Huyue Song, Shixue Hu, Michael Benton, Dayong Jiang
Summary: This article examines the end Permian to Middle Triassic interval, which witnessed a significant marine mass extinction and delayed recovery. The focus is on Triassic marine sediments in South China, providing unique documentation of the collapse and recovery of marine ecosystems. Several papers analyze different fossils and their ecological significance, while others study biostratigraphy, reconstruct paleoenvironments, and link records to volcanic eruptions.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2024)
Article
Geography, Physical
Mohammad Firoze Quamar, Upasana Swaroop Banerji, Biswajeet Thakur, Ratan Kar
Summary: The Indian Summer Monsoon is a crucial component of the Asian Monsoon System, impacting rainfall, agricultural productivity, and socio-economic growth in India and nearby regions. The central monsoon zone in India is more responsive to strong monsoon phases than weak ones.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2024)
Article
Geography, Physical
Maria Laura Balestrieri, Valerio Olivetti, David Chew, Luca Zurli, Massimiliano Zattin, Foteini Drakou, Gianluca Cornamusini, Matteo Perotti
Summary: This study presents a multidisciplinary provenance study on legacy cores drilled in the central Ross Sea, Antarctica, providing insights into the oscillation of ice flows and advance and retreat phases of the West Antarctic Ice Sheet.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2024)
Article
Geography, Physical
P. Depuydt, S. Toucanne, C. Barras, S. Le Houedec, M. Mojtahid
Summary: This study provides a comprehensive overview of the dynamics of the upper branch of the Atlantic Meridional Overturning Circulation (AMOC) in the mid-latitudes of the Northeast Atlantic. It focuses on the European Slope Current (ESC) and its glacial equivalent known as the Glacial Eastern Boundary Current (GEBC). The study reveals significant changes in flow strength and ventilation during the glacial and deglaciation periods, as well as a gradual weakening of the slope current during the Holocene.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2024)
Article
Geography, Physical
Junhee Park, Holly J. Stein, Judith L. Hannah, Svetoslav V. Georgiev, Oyvind Hammer, Snorre Olaussen
Summary: This study reports new Re-Os ages for black shales from Svalbard and evaluates the paleoenvironment during organic-rich shale deposition. The study also proposes correlations of specific Late Jurassic ammonite zones between the Boreal and Tethyan realms.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2024)
Article
Geography, Physical
Guocheng Dong, Weijian Zhou, Feng Xian, Yunchong Fu, Li Zhang, Ling Tang, Pengkai Ding
Summary: The cause of ice-age cycles is still not fully understood, and studying the timing and magnitude of mountain glaciations can provide valuable insights. This study presents new dating results from the Niqingqu Valley in the Tibetan Plateau, showing multiple glacial activities prior to the Penultimate Glacial Maximum. The findings suggest that low atmospheric CO2 content and reduced summer solar insolation/high summer-monsoon precipitation played a role in these glacial fluctuations.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2024)
Article
Geography, Physical
Haoran Dong, Zhitong Chen, Yucheng Wang, Jie Chen, Zhiping Zhang, Zhongwei Shen, Xinwei Yan, Jianbao Liu
Summary: Through sediment records from Lake Nanyi in the lower Yangtze, we found that anthropogenic fire activity played a dominant role in the region, and the temporal pattern of fire activity was asynchronous from east to west. Archaeological evidence suggests an inverse relationship between agricultural and population levels and fire intensity during the mid-Holocene, with fire intensity being influenced by the diversity of landscape types associated with pre-historic subsistence patterns. Overall, changes in regional water-level delayed the transition from hunting-gathering to agriculture in the lower Yangtze region.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2024)
Article
Geography, Physical
Giovanni Coletti, Giulia Bosio, Alberto Collareta, Or Mordecai Bialik, Eleonora Regattieri, Irene Cornacchia, Gianni Insacco, John Buckeridge
Summary: This paper argues that sessile barnacles are an excellent proxy for palaeoenvironmental reconstructions. The shells of barnacles consist of diagenetically stable low-magnesium calcite and record short-term variations. Analyses of several Western Mediterranean barnacle-rich deposits demonstrate the utility of barnacles as proxies for water depth, distance from the coastline, and hydrodynamic conditions. Moreover, the stable isotope ratios of barnacle shells can provide detailed palaeoenvironmental information.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2024)
Article
Geography, Physical
Feng Wu, Xinong Xie, Wen Yan, Youhua Zhu, Beichen Chen, Jianuo Chen, Mo Zhou
Summary: This paper describes the Quaternary evolution of Meiji Atoll in the southern South China Sea. The findings show how variations in sea surface temperature, eustatic sea level, and tectonics have influenced the development of the atoll. These findings have broader implications for understanding the Quaternary evolution of similar tropical carbonate atolls in the region.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2024)
Article
Geography, Physical
Ana Mateos, Ericson Hoelzchen, Jesus Rodriguez
Summary: The Epivillafranchian and the transition to the Galerian was a period of environmental fluctuations and faunal turnover. Hominins and giant hyenas could coexist during the Epivillafranchian, but the transition to the Galerian led to a disruption of the scavenging niche, coinciding with the extinction of P. brevirostris.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2024)
Article
Geography, Physical
Tianyu Du, Wensheng Zhang, Bing Li, Linjing Liu, Yuecong Li, Yawen Ge, Shiyong Yu
Summary: This article presents sedimentary evidence for a dramatic channel displacement of the lower Yellow River about 3000-2600 years ago, and explains the impact of this displacement on the geomorphology and human migration.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2024)
Article
Geography, Physical
Johann Mueller, Michael M. Joachimski, Oliver Lehnert, Peep Mannik, Yadong Sun
Summary: The Late Ordovician mass extinction occurred during an ice age, with maximum ice coverage and a substantial drop in global sea level. This led to the exposure or shallowing of shallow tropical shelf environments. The study suggests that the burial rate of nutrient phosphorus (P) on shelves was minimal during this glacial period, leading to excess bioavailable P entering the open ocean and stimulating phytoplankton production, which in turn lowered oxygen concentrations.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2024)
Article
Geography, Physical
Marina Addante, Patrizia Maiorano, Giovanna Scopelliti, Angela Girone, Maria Marino, Samanta Trotta, Antonio Caruso
Summary: This study presents the first high-resolution results on planktonic foraminiferal stable oxygen isotopes and calcareous plankton assemblages, providing insights into the glacial-interglacial variability and North Atlantic climate variability. The research also reveals evidence of the first significant southward migration of the Subarctic Front in the mid-latitudes.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2024)
Article
Geography, Physical
Bing-Cai Liu, Rui-Wen Zong, Kai Wang, Jiao Bai, Yi Wang, Hong-He Xu
Summary: Phytogeography plays a vital role in the evolution of plants. This paper describes a new species of a spore-bearing plant from the upper Silurian period in West Junggar, China. By analyzing global Silurian macrofossil records, the study reveals the spatial-temporal distribution of Silurian plant macrofossils and identifies two phytogeographic realms during the Pridoli Epoch.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2024)
Article
Geography, Physical
Francois Fournier, Thomas Teillet, Alexis Licht, Jean Borgomano, Lucien Montaggioni
Summary: This study investigates the temporal evolution of neritic carbonates in the proto-South China Sea to reconstruct East Asian monsoonal currents and winds during the middle to late Paleogene. The results highlight that many of the features of the summer East Asian Monsoon large-scale circulation are rooted in the middle Paleogene.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2024)