Article
Geography, Physical
Sander L. Hilgen, Eduard Pop, Shinatria Adhityatama, Tom A. Veldkamp, Harold W. K. Berghuis, Indra Sutisna, Dida Yurnaldi, Guillaume Dupont-Nivet, Tony Reimann, Norbert Nowaczyk, Klaudia F. Kuiper, Wout Krijgsman, Hubert B. Vonhof, Dian Rahayu Ekowati, Gerrit Alink, Ni Luh Gde Dyah Mega Hafsari, Olafianto Drespriputra, Alexander Verpoorte, Remco Bos, Truman Simanjuntak, Bagyo Prasetyo, Josephine C. A. Joordens
Summary: This study aims to establish an accurate age control for the fossils found at the Trinil site in Java, Indonesia. By applying various dating methods and documenting new stratigraphic sections, the researchers identified two distinct fossil-rich channel fills with ages ranging from 830-773 ka to 450 +/- 110 ka. The presence of fossils from different time periods challenges the assumption of a homogeneous biostratigraphic unit at the Trinil site.
QUATERNARY SCIENCE REVIEWS
(2023)
Article
Geochemistry & Geophysics
V Ruiz Gonzalez, E. M. Renda, H. Vizan, M. Ganerod, C. G. Puigdomenech, C. B. Zaffarana
Summary: This study presents the analysis of paleomagnetic data from the Jurassic Bahia Laura Complex in the Deseado Massif, revealing the regional deformation history during the breakup of Gondwana. The results indicate northward drift, clockwise rotation, and westward drift of South America during the Jurassic period. These findings provide important insights into the evolution of Gondwana.
Article
Geosciences, Multidisciplinary
Herve Wabo, Nicolas J. Beukes, Sarbani Patranabis-Deb, Dilip Saha, Georgy Belyanin, Jan Kramers
Summary: The Southern Purana basins in the Bastar and Dharwar cratons contain well-preserved carbonate layers dating back to the Mesoproterozoic era, including the unique Narji Limestone in the Cuddapah basin. These carbonates share a similar primary paleomagnetic signature, suggesting interconnected successions deposited during a marine flooding event on the Southern India craton in the middle to late Mesoproterozoic periods. This contradicts previous interpretations based on geochronological data and supports the idea that the Neoproterozoic ages for Sequence III may reflect post-depositional events.
JOURNAL OF ASIAN EARTH SCIENCES
(2022)
Article
Geochemistry & Geophysics
Benjamin E. Cohen, Darren F. Mark, William S. Cassata, Lara M. Kalnins, Martin R. Lee, Caroline L. Smith, David L. Shuster
Summary: Research found that the shergottites have a wide range of ages, with statistically robust Ar-40/Ar-39 isochron ages ranging from 161+/-9 Ma to 540+/-63 Ma, consistent with other dating methods. These data indicate that, despite experiencing shock metamorphism, the shergottites were sourced from the youngest volcanoes on Mars.
EARTH AND PLANETARY SCIENCE LETTERS
(2023)
Article
Environmental Sciences
Maria Camila Herrera-Coy, Laura Paola Calderon, Ivan Leonardo Herrera-Perez, Paul Esteban Bravo-Lopez, Christian Conoscenti, Jorge Delgado, Mario Sanchez-Gomez, Tomas Fernandez
Summary: Landslide occurrence in Colombia is frequent due to its geographical location, with steep and complex terrain. The study area around the Bogota-Villavicencio road is one of the regions with the highest concentration of landslides. A detailed analysis of 2506 landslides reveals five basic typologies and landslide susceptibility models have been made using different methods and input factors. The results show that machine learning methods, especially random forest, are the most suitable, with high accuracy and success rates. An integrated landslide susceptibility map has been created based on geological control.
Article
Environmental Sciences
Adonara E. Mucek, Martin Danisik, Shanaka L. de Silva, Daniel P. Miggins, Axel K. Schmitt, Indyo Pratomo, Anthony Koppers, Jack Gillespie
Summary: Thermochronology analyses coupled with Bayesian statistics suggest heterogeneity in warm magma reservoir at Toba Caldera, Sumatra, after the supereruption 74,000 years ago. The study reveals a lack of understanding of magmatic conditions and processes during the resurgence period post-catastrophic supereruptions.
COMMUNICATIONS EARTH & ENVIRONMENT
(2021)
Article
Geochemistry & Geophysics
Allan Silva Gomes, Paulo Marcos Vasconcelos, Isabela de Oliveira Carmo
Summary: The presence of secondary phases in volcanic rocks and intrusive units may pose challenges for high resolution 40Ar/39Ar geochronology. Acid treatment is used to remove alteration products, but it has minimal impact on the accuracy of age determinations. Effective separation of atmospheric and radiogenic gases can successfully mitigate deleterious effects associated with alteration phases.
Article
Geochemistry & Geophysics
Giovanny Jimenez, John W. Geissman, German Bayona
Summary: Complex orogenic belts often show variations in deformational style. This study focused on the northern Eastern Cordillera of Colombia and found abrupt changes into a regional strike-slip system in the Santander Massif. Paleomagnetic data and magnetic mineralogy were used to investigate the intensity of deformation, magnitude and sense of rotations, and strike-slip displacements. The results suggest that clockwise rotations occurred along NE-striking transverse faults, indicating tectonic inversion of pre-existing faults.
Article
Geosciences, Multidisciplinary
Morgan J. Salisbury, Nestor Jimenez, Dan Barfod
Summary: This study examines the geochemical variations in the volcanic area of Intersalar Range in western Bolivia. The results show a correlation between the age and geochemical characteristics of the volcanic rocks and the reararc regions. Furthermore, the Nb/Nb* values indicate the presence of intact mantle lithosphere in the central Altiplano.
FRONTIERS IN EARTH SCIENCE
(2022)
Article
Geosciences, Multidisciplinary
Emily E. Mixon, Brad S. Singer, Brian R. Jicha, Adan Ramirez
Summary: Calbuco volcano in the Andean Central Southern Volcanic Zone is considered one of the most dangerous volcanic centers in the Southern Andes by Chile's Geological Survey. Research suggests that Calbuco has produced a greater eruptive flux in the Pleistocene-Holocene period compared to other arc volcanoes globally.
JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH
(2021)
Article
Geosciences, Multidisciplinary
Luis Alfonso Perez-Valera, Juan Jose Villalain, Fernando Perez-Valera, Antonio Azor, Mario Sanchez-Gomez
Summary: This study analyzes the rotation of crustal blocks in the Socovos transpressive fault zone in the Eastern Betics using paleomagnetism. The results show different deformation domains with distinctive characteristics, providing insights into strain partitioning and deformation mode along large and complex transpressive fault zones. These findings emphasize the importance of understanding local structures when interpreting regional paleomagnetic rotation data.
JOURNAL OF STRUCTURAL GEOLOGY
(2022)
Article
Geology
Katarina Sarinova, Natalia Hudackova, Samuel Rybar, Michal Jamrich, Fred Jourdan, Adam Frew, Celia Mayers, Andrej Ruman, Viktora Subova, Lubomir Sliva
Summary: The analysis of sedimentary fill in the Danube Basin reveals the volcanic activity associated with its middle Miocene formation, and key deposition and subsidence events during the late Badenian period. Additionally, the study highlights the use of index fossils in dating and understanding the geological history of the region.
Article
Geochemistry & Geophysics
Sanna Holm-Alwmark, Fred Jourdan, Ludovic Ferriere, Carl Alwmark, Christian Koeberl
Summary: This study focuses on the Puchezh-Katunki impact structure in Russia, accurately dating its formation to 195.9 +/- 1.0 Ma using 40Ar/39Ar data. The research challenges previous temporal correlations between the impact event and multiple extinction events, emphasizes the importance of careful sample preparation and methodology in overcoming 40Ar issues, and highlights the need for caution when suggesting connections between specific impact events and extinction events.
GEOCHIMICA ET COSMOCHIMICA ACTA
(2021)
Article
Geosciences, Multidisciplinary
J. T. Welsh, J. M. Feinberg, E. Schneider, J. M. Pares, B. R. Jicha, B. S. Singer, A. R. Carroll
Summary: The Leucite Hills Volcanic Field in southwest Wyoming is a volcanic area consisting of various volcanic features. The study focuses on the petrology of the volcanic and intrusive rocks, which are unique surface manifestations of ultrapotassic lamproite. By analyzing paleomagnetic data and magnetic mineral assemblage, the researchers were able to gain insights into the magnetic properties of the rocks. The findings also contribute to the understanding of the geomagnetic instability and eruption of this unusual volcanism.
JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH
(2023)
Article
Geochemistry & Geophysics
Benjamin Gerard, Xavier Robert, Laurence Audin, Pierre G. Valla, Matthias Bernet, Cecile Gautheron
Summary: The study quantifies exhumation and uplift patterns in the Abancay Deflection since 40 million years ago, revealing a moderate and steady exhumation but with an acceleration of uplift in the recent 5 million years, indicating active tectonics and river incision.
Article
Geosciences, Multidisciplinary
Andreu Vinyoles, Miguel Lopez-Blanco, Miguel Garces, Pau Arbues, Luis Valero, Elisabet Beamud, Belen Oliva-Urcia, Patricia Cabello
Summary: The propagation of the deformation front in foreland systems leads to significant changes in sedimentation rates, controlled by tectonic structures. The Tremp-Jaca Basin exhibited three main types of depocenters during its evolution.
Article
Geography, Physical
Dimitris Evangelinos, Carlota Escutia, Tina van de Flierdt, Luis Valero, Jose-Abel Flores, David M. Harwood, Frida S. Hoem, Peter Bijl, Johan Etourneau, Katharina Kreissig, Katrina Nilsson-Kerr, Liam Holder, Adrian Lopez-Quiros, Ariadna Salabarnada
Summary: The Antarctic Circumpolar Current (ACC) is crucial for global heat, carbon and nutrient transport. Neodymium isotope records reveal changes in deep water masses across the Tasmanian Gateway, indicating the presence of different deep water masses during the early Oligocene and early Miocene periods. The study suggests that the ACC in the past may have been less deep and not as strong as it is today, with distinct neodymium isotope compositions of deep waters across the Tasmanian Gateway.
GLOBAL AND PLANETARY CHANGE
(2022)
Article
Evolutionary Biology
Fernando A. Perini, Thomas E. Macrini, John J. Flynn, Kanvaly Bamba, Xijun Ni, Darin A. Croft, Andre R. Wyss
Summary: By analyzing endocranial data from notoungulates in a phylogenetic framework, this study sheds light on important evolutionary issues and enhances our understanding of their phylogenetic relationships.
JOURNAL OF MAMMALIAN EVOLUTION
(2022)
Article
Evolutionary Biology
Darin A. Croft, John J. Flynn, Andre R. Wyss, Reynaldo Charrier, Federico Anaya
Summary: This study describes the first Neogene remains of Pan-Chinchillinae, including the new genus Miochinchilla, which differs from extant chinchillines. The discovery significantly adds to the morphological diversity of chinchillid rodents and is mainly found in the central Andes region.
JOURNAL OF MAMMALIAN EVOLUTION
(2021)
Article
Geosciences, Multidisciplinary
Evan E. Scott, Kentaro Chiba, Federico Fanti, Beverly Z. Saylor, David C. Evans, Michael J. Ryan
Summary: This study reports the oldest hadrosauroid bonebed in southern Alberta, Canada, and the first one described from the Campanian Oldman Formation. The bonebed consists of juvenile-sized individuals that were transported a short distance after death and preserved in fine-grained mudstone. Histological examination confirms that all individuals are juveniles from two age classes (<1 and <2 years old at death). Bone microstructure data indicate rapid growth similar to other Late Cretaceous hadrosaurids.
CANADIAN JOURNAL OF EARTH SCIENCES
(2022)
Article
Biology
Marcos Fernandez-Monescillo, Darin A. Croft, Francois Pujos, Pierre-Olivier Antoine
Summary: This study presents systematic conclusions on the taxonomic history and ontogenetic variation of the Mesotherium cristatum, a key taxon in the Early-Middle Pleistocene period. Through critical analyses, it is found that the variation among different purported mesotheriine taxa is actually consistent with intraspecific and ontogenetic variation within a single species, M. cristatum. This research puts an end to the misidentification and complex taxonomic history of this species, providing a better understanding of the taxonomic group.
HISTORICAL BIOLOGY
(2023)
Article
Anthropology
Yohannes Haile -Selassie, Beverly Z. Saylor, Mulugeta Alene, Alan Deino, Luis Gibert, Gary T. Schwartz
Summary: Fossil discoveries of early Australopithecus species from Woranso-Mille have provided important insights into the evolution and diversity of mid-Pliocene hominins. Two mandibles with dentitions recovered from the area show morphological similarities with both Australopithecus anamensis and Australopithecus afarensis, making their taxonomic assignment challenging. However, their retention of more traits similar to Kanapoi Au. anamensis and the presence of Au. anamensis fossils in Woranso-Mille support their assignment to this species. The mosaic nature of the dentognathic morphology and the overlap in time between Au. anamensis and Au. afarensis further support the hypothesis of an ancestor-descendant relationship between these two species.
JOURNAL OF HUMAN EVOLUTION
(2022)
Article
Geography, Physical
Luis Valero, Antonio Garcia-Alix, Gonzalo Jimenez-Moreno, Jon Camuera, Alejandro Lopez-Aviles, Maria J. Ramos-Roman, Francisco J. Jimenez-Espejo, Elisabet Beamud, Estefania Maestre, R. Scott Anderson
Summary: The study of the Padul-15-05 sediment core provides valuable insights into the paleoenvironmental and climate change in the Western Mediterranean region over the past 200,000 years. By identifying past Earth's magnetic excursions, we have improved the chronology for the older sediments of the core and enhanced the reliability of the age model for the Padul-15-05 sedimentary sequence.
QUATERNARY GEOCHRONOLOGY
(2023)
Article
Paleontology
Andrew J. McGrath, John J. Flynn, Darin A. Croft, Jennifer Chick, Holly E. Dodson, Andre R. Wyss
Summary: Pampa Castillo in southern Chile is a newly discovered Lower Miocene site with diverse octodontoids. The octodontoids from Pampa Castillo are consistent with the Santacrucian fauna and show similarities to both Pinturan and typical Santacrucian faunas.
PAPERS IN PALAEONTOLOGY
(2023)
Article
Geography, Physical
Onema C. Adojoh, Fabienne Marret, Robert Duller, Peter L. Osterloff, Francisca E. Oboh-Ikuenobe, Beverly Z. Saylor
Summary: This study used comparative analysis of gravity cores to reconstruct the morphological evolution of the Niger Delta. Elemental tracers and microfossil data were used to understand the impact of climate-sea level controls on the delta. The study found that the ratios of Ti/Zr and Fe/S provided information on fluvial transport and marine shale.
Article
Evolutionary Biology
Allison Nelson, Russell K. Engelman, Darin A. Croft
Summary: This study uses a new dataset to estimate the body mass of extinct South American herbivorous mammals, and finds discrepancies with previous studies, which are primarily due to the unique craniodental morphology of these animals. Therefore, new methods are needed to account for these differences in body mass inference.
JOURNAL OF MAMMALIAN EVOLUTION
(2023)
Article
Geochemistry & Geophysics
J. B. Ruh, L. Valero, M. Najafi, N. Etemad-Saeed, J. Vouga, A. Mohammadi, F. Landtwing, M. Guillong, M. Cobianchi, N. Mancin
Summary: This study presents the magnetostratigraphic section and U-Pb zircon ages of the Karvandar Basin, revealing a depositional age of approximately 24-17 Ma and the Makran volcanic arc as the source of the clastic sequence. The results provide new constraints on the initiation of arc volcanism related to the Makran subduction zone.
Article
Paleontology
Daniel Barasoain, Darin A. Croft, Alfredo E. Zurita, Victor H. Contreras, Rodrigo L. Tomassini
Summary: Peltephilidae is an ancient lineage of medium-large-sized 'armadillos' from South America. The newest record of this group is found from the Late Miocene, and the decline of Peltephilidae coincides with the replacement of subtropical/tropical environments by more open and arid ones. The inclusion of E. kanti within Epipeltephilus is supported for the first time through a cladistic analysis.
PAPERS IN PALAEONTOLOGY
(2023)
Article
Paleontology
Marcos Fernandez-Monescillo, Pierre-Olivier Antoine, Darin A. Croft, Francois Pujos
Summary: Taxonomy of mesotheriids in Monte Hermoso, Buenos Aires province, Argentina is complicated, especially regarding the Late Miocene-Pliocene species Pseudotypotherium pulchrum and P. exiguum. There has been confusion due to intraspecific variation of P. exiguum and the inclusion of Pleistocene taxon Mesotherium cristatum. In this study, we conducted a thorough analysis of type materials and compared molar size and i1 ontogenetic variation to determine that Pseudotypotherium exiguum is the valid senior synonym for Monte Hermoso mesotheriids. We provide a detailed diagnosis and description of P. exiguum, including the first ontogenetic series for any species of Pseudotypotherium.
JOURNAL OF VERTEBRATE PALEONTOLOGY
(2023)
Article
Geosciences, Multidisciplinary
Sabi Peris Cabre, Luis Valero, Jorge E. Spangenberg, Andreu Vinyoles, Jean Verite, Thierry Adatte, Maxime Tremblin, Stephen Watkins, Nikhil Sharma, Miguel Garces, Cai Puigdefabregas, Sebastien Castelltort
Summary: The early Cenozoic experienced several episodes of abrupt global warming, called hyperthermals, which had significant impacts on marine life and water physicochemistry. Recent studies have shown that these hyperthermals also affected the hydrologic cycle and led to increased erosion and sediment transport. The Middle Eocene Climatic Optimum (MECO) was a gradual warming event, but little is known about its impact on Earth surface systems. In the South Pyrenean foreland basin (SPFB), a deltaic progradation episode has been associated with the MECO, and new data support a possible hydrological response to this period of warming.
CLIMATE OF THE PAST
(2023)
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)