Article
Geography, Physical
Rainer R. Schoch, Dieter Seegis, Eudald Mujal
Summary: This article describes the discovery of a large number of vertebrate remains from the Middle Triassic Lower Keuper near Kupferzell in southern Germany. The excavation provided valuable information about the sedimentary setting and the development of the fauna and their ecosystems, including the presence of top predators.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2022)
Article
Geosciences, Multidisciplinary
Armin Zeh, Matthias Franz, Karsten Obst
Summary: The study indicates that the Stuttgart Formation in the Central European Basin contains relics of Triassic volcanic detritus, with some deposition ages dating back to around 231 million years ago. These volcanic detritus were likely transported by monsoonal circulations from volcanic centers of the NW Tethys to the Central European Basin and were found in the Stuttgart Formation.
FRONTIERS IN EARTH SCIENCE
(2021)
Article
Geology
Paul Enos, Elias Samankassou
Summary: The Lofer cyclothems of the Alpine Upper Triassic share many similarities with Holocene sediments of Florida Bay, including symmetrical cycles and similar depositional textures and structures. These similarities suggest that sedimentation patterns at a small scale may be independent of the global climate regime, providing important insights into the Triassic depositional environment and future evolution of modern environments.
Review
Geosciences, Multidisciplinary
Michael J. Benton, Feixiang Wu
Summary: The Triassic period witnessed significant changes in marine and terrestrial ecosystems. The recovery from the Permian-Triassic mass extinction was followed by a period of renewal and novelty, which was enhanced by the effects of the Carnian Pluvial Episode. The oceans experienced changes in the carbonate factory and the Mesozoic Marine Revolution during the Middle and Late Triassic, contradicting the previous belief that these occurred in the Late Jurassic and Cretaceous. On land, there was a competition between synapsids and archosauromorphs, leading to a shift in posture and physiology, including the development of warm-bloodedness. This shift in ecosystems and adaptations was triggered by the mass extinction event and further accelerated by the Carnian Pluvial Episode.
FRONTIERS IN EARTH SCIENCE
(2022)
Article
Geochemistry & Geophysics
Jacopo Dal Corso, Benjamin J. W. Mills, Daoliang Chu, Robert J. Newton, Haijun Song
Summary: Past major biological turnovers are associated with large injections of CO2 into the atmosphere-ocean system, often related to the formation of Large Igneous Provinces. However, the effects of these CO2 pulses on ecosystems vary at different times, depending on the initial conditions. This study uses biogeochemical and climate modeling to show how delayed vegetation recovery and the amalgamation of Pangaea influenced the Late Triassic Carnian Pluvial Episode. The findings provide insights into the mechanisms behind this global climate change event and its connection to a major biological turnover and the emplacement of the Wrangellia LIP.
EARTH AND PLANETARY SCIENCE LETTERS
(2022)
Review
Ecology
Peixin Zhang, Minfang Yang, Jing Lu, Zhongfeng Jiang, Kai Zhou, Xiaotao Xu, Ye Wang, Li Wu, Huijuan Chen, Xuran Zhu, Yanghang Guo, Huajun Ye, Longyi Shao, Jason Hilton
Summary: The Late Triassic Carnian Pluvial Episode (CPE) was a globally significant event characterized by increased temperature and humidity, leading to changes in terrestrial vegetation and freshwater algae abundance. This event ended a long period of arid climate and is associated with volcanic activities of the Wrangellia Large Igneous Province (LIP) that released greenhouse gases. The volcanic emissions enhanced atmospheric circulation and hydrological cycle, resulting in a shift from arid to humid conditions that affected floral composition. The increased terrestrial carbon burial counteracted the warming effects of volcanic emissions, ultimately leading to a return to a stable climate state.
FRONTIERS IN ECOLOGY AND EVOLUTION
(2023)
Article
Biodiversity Conservation
Adam J. Fitch, Merle Haas, Wayne C'Hair, Eugene Ridgley, Ben Ridgley, Devin Oldman, Crystal Reynolds, David M. Lovelace
Summary: New findings in the lower Popo Agie Formation of central Wyoming led to the reevaluation of the only known hyperodapedontine rhynchosaur in western North America. The phylogenetic analysis rejects the previous identification and suggests a close relationship between the USNM 494329 specimen and Oryctorhynchus bairdi. Additional specimens found in the same formation provide further insights into the evolutionary history of the hyperodapedontines. The Popo Agie Formation is considered significant as it represents the first nonmarine Late Triassic unit of Western North America confidently restricted to the Carnian age.
Article
Geography, Physical
Jacopo Dal Corso, Nereo Preto, Claudia Agnini, Sonke Hohn, Agostino Merico, Helmut Willems, Piero Gianolla
Summary: During the Late Triassic Carnian Pluvial Episode (CPE), significant pelagic calcification began with the appearance of Orthopithonella calcispheres in deep-water successions of the Western Tethys, constituting up to 8% of hemipelagic limestones. This change in carbonate sedimentation may indicate a profound modification in ocean biogeochemistry during the CPE.
GLOBAL AND PLANETARY CHANGE
(2021)
Article
Multidisciplinary Sciences
Jing Lu, Peixin Zhang, Jacopo Dal Corso, Minfang Yang, Paul B. Wignall, Sarah E. Greene, Longyi Shao, Dan Lyu, Jason Hilton
Summary: The Late Triassic Carnian Pluvial Episode saw a significant increase in global humidity and temperature, linked to the large-scale volcanism of the Wrangellia large igneous province. New research shows that volcanic eruptions during this period occurred in multiple discrete pulses, each associated with climatic changes and ecological turnover.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2021)
Article
Geosciences, Multidisciplinary
Patricia D. Gonzalez, Carolyn M. Furlong, Murray K. Gingras, Tiffany Playter, John-Paul Zonneveld
Summary: Hydrocarbon production from the Lower Triassic Montney Formation in northeastern British Columbia primarily occurs in unconventional reservoirs consisting of siltstone beds. This formation is characterized by complex lithostratigraphy due to subtle grain-size variation, biogenic structures, and lateral facies variability. Detailed sedimentologic and stratigraphic analyses are essential for understanding the depositional models and stratigraphic framework of the Montney Formation. The formation is interpreted to have been deposited in storm-dominated settings along a mixed siliciclastic-carbonate ramp. The study of trace fossils and physico-chemical conditions during deposition provide insights into the formation's characteristics.
MARINE AND PETROLEUM GEOLOGY
(2022)
Article
Geosciences, Multidisciplinary
C. A. Benavente, A. C. Mancuso, R. B. Irmis, K. M. Bohacs, S. Matheos
Summary: Discerning paleoclimate parameters in depositional systems of the continental interior is challenging, and often requires additional information or data sets. This study investigates the Los Rastros Formation in Argentina and uses carbon and oxygen stable isotopes to understand paleohydrological conditions and paleotemperatures. The results suggest that tectonic effects dominated over climate effects in hydrological fluctuations.
GEOLOGICAL SOCIETY OF AMERICA BULLETIN
(2022)
Article
Multidisciplinary Sciences
Mina Mazaheri-Johari, Piero Gianolla, Tamsin A. Mather, Joost Frieling, Daoliang Chu, Jacopo Dal Corso
Summary: Research indicates that during the Late Triassic Carnian Pluvial Episode, volcanic activity may be linked to multiple carbon inputs into the atmosphere-ocean system and enhanced hydrological cycle. New data suggests that volcanic Hg inputs into basins may be associated with CPE global negative C-isotope excursions and humid phases.
SCIENTIFIC REPORTS
(2021)
Article
Multidisciplinary Sciences
Corentin Jouault, Andre Nel, Vincent Perrichot, Frederic Legendre, Fabien L. Condamine
Summary: This study evaluates the extinction of insects in the Early Triassic and identifies three extinction events. The research suggests that changes in floral assemblages are likely the main driving factor for insect population changes during the Early Triassic.
NATURE COMMUNICATIONS
(2022)
Article
Geography, Physical
David W. Haig, Sylvain Rigaud, Eujay McCartain, Rossana Martini, Isaias Santos Barros, Lucy Brisbout, Jacinto Soares, Jose Nano
Summary: Timor is located in the Outer banda Arc and has a chaotic geology in the late Neogene collision zone. The Upper Triassic shallow-water carbonate deposits contain foraminiferal microfauna with species known from North Africa and Europe. The Bandeira Group represents extensive carbonate-platform deposits with unique characteristics compared to other units in the region.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2021)
Article
Multidisciplinary Sciences
Yuki Tomimatsu, Tatsuo Nozaki, Tetsuji Onoue, Hironao Matsumoto, Honami Sato, Yutaro Takaya, Jun-Ichi Kimura, Qing Chang, Manuel Rigo
Summary: The Carnian Pluvial Episode was a short interval of extreme rainfall in the Late Triassic that caused significant changes in marine ecosystems. This study examined an equatorial record of oceanic conditions during this episode and found that global warming induced by volcanism led to oceanic anoxia, resulting in a turnover in marine taxa and an increase in radiolarian diversity after the recovery from anoxia.
SCIENTIFIC REPORTS
(2023)
Article
Geosciences, Multidisciplinary
Anju Verma, U. K. Shukla
JOURNAL OF THE GEOLOGICAL SOCIETY OF INDIA
(2015)
Article
Geography, Physical
Shipra Chaudhary, U. K. Shukla, Y. P. Sundriyal, Pradeep Srivastava, Poonam Jalal
QUATERNARY INTERNATIONAL
(2015)
Article
Geosciences, Multidisciplinary
Nilotpal Ghosh, Asish R. Basu, O. N. Bhargava, U. K. Shukla, Arundhuti Ghatak, Carmala N. Garzione, Arun D. Ahluwalia
Article
Geosciences, Multidisciplinary
Rupa Ghosh, R. K. Sehgal, Pradeep Srivastava, U. K. Shukla, A. C. Nanda, D. S. Singh
JOURNAL OF THE GEOLOGICAL SOCIETY OF INDIA
(2016)
Correction
Multidisciplinary Sciences
Rahul Srivastava, Rajeev Patnaik, U. K. Shukla, Ashok Sahni
Article
Geosciences, Multidisciplinary
R. Ghosh, P. Srivastava, U. K. Shukla, I. Singh, P. K. Champati Ray, R. K. Sehgal
JOURNAL OF ASIAN EARTH SCIENCES
(2018)
Article
Geochemistry & Geophysics
U. K. Shukla, D. S. Bora
JOURNAL OF GEODYNAMICS
(2019)
Article
Environmental Sciences
Siddhi Garg, Aparna Shukla, Manish Mehta, Vinit Kumar, Shruti Anna Samuel, S. K. Bartarya, Uma Kant Shukla
JOURNAL OF MOUNTAIN SCIENCE
(2018)
Article
Geography, Physical
S. Singh, K. Prakash, U. K. Shukla
QUATERNARY INTERNATIONAL
(2019)
Article
Multidisciplinary Sciences
Rahul Srivastava, Rajeev Patnaik, U. K. Shukla, Ashok Sahni
Article
Geography, Physical
Rupa Ghosh, Pradeep Srivastava, U. K. Shukla, R. K. Sehgal, I. B. Singh
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2019)
Article
Geosciences, Multidisciplinary
Reza Rezaei, Arman Jafarian, Frank Mattern, Uma Kant Shukla, Venkatramanan Senapathi, Michaela Bernecker
Article
Geography, Physical
Choudhurimayum Pankaj Sharma, Suman Lata Rawat, Pradeep Srivastava, Narendra K. Meena, Rajesh Agnihotri, Anil Kumar, Poonam Chahal, S. K. S. Gahlaud, U. K. Shukla
Article
Geosciences, Multidisciplinary
Poonam Jalal, Jyoti Bora Pandey, Syed Masood Ahmad, Som Dutt, Uma Kant Shukla, Balakrishna Maddodi
GEOLOGICAL JOURNAL
(2020)
Article
Environmental Sciences
Aman Arora, Alireza Arabameri, Manish Pandey, Masood A. Siddiqui, U. K. Shukla, Dieu Tien Bui, Varun Narayan Mishra, Anshuman Bhardwaj
Summary: This study tested and compared novel advanced-machine learning algorithms in predicting flood susceptible areas in a low-altitude, sub-tropical floodplain environment in the Middle Ganga Plain, India. The ANFIS-GA model outperformed other models with the highest success rate and prediction rate, suggesting further study in similar environments for establishing a benchmark model with highest accuracy and sensitivity.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
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)