Article
Geochemistry & Geophysics
Xiu-Quan Miao, Xiao-Long Huang, Wen Yan, Fan Yang, Wan-Feng Zhang, Yang Yu, Yu-Xin Cai, Sheng-Zhu Zhu
Summary: This study investigates the petrogenesis of diorite and diabase samples from the southern South China Sea, suggesting their association with the formation of the proto-South China Sea (PSCS) and providing insight into the geodynamics of the region. The diorites originated from metasomatized mantle sources in a continental arc setting, while the diabases were derived from fluids in a back-arc basin related to the subduction of the Paleo-Pacific plate. The diabase samples are considered coeval with remnants of the PSCS oceanic crust, indicating the PSCS was a spreading back-arc basin during the Early Cretaceous.
Article
Geosciences, Multidisciplinary
Matthias Kranner, Mathias Harzhauser, Oleg Mandic, Philipp Strauss, Wolfgang Siedl, Werner E. Piller
Summary: The Vienna Basin is one of the largest onshore oil and gas fields in Europe, consisting of several horst and graben structures. Analysis of water depth evolution along a NE-SW transect indicates dramatic changes over time, coinciding with shifts in prevailing tectonic regimes.
MARINE AND PETROLEUM GEOLOGY
(2021)
Article
Geochemistry & Geophysics
Amir Salaree, Yihe Huang
Summary: We conducted a physical analysis of back-arc tsunamis during the 2011 Tohoku earthquake in the Sea of Japan and found that fault dip is the main contributor to their propagation. Through numerical simulations and analysis of the Tohoku event, we identified the combination of near- to intermediate-field horizontal and vertical deformation as well as transient surface waves as necessary for reconstructing the back-arc propagation.
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
(2023)
Article
Geochemistry & Geophysics
Shaza Haidar, Jacques Deverchere, David Graindorge, Mohamed Arab, Mourad Medaouri, Frauke Klingelhoefer
Summary: This study presents a new seismo-stratigraphic interpretation of the Eastern Algero-Balearic Basin (EABB) based on seismic data and magnetic anomalies. The results suggest that seafloor spreading in the EABB occurred during the Langhian-Serravallian times, with a half-spreading rate of 3.7 cm/yr for 2.45 Myr. The study also proposes a revised kinematic model for the Algero-Balearic domain, highlighting three stages of its evolution.
Article
Geochemistry & Geophysics
M. Corradino, D. Morelli, S. Ceramicola, L. Scarfs, G. Barberi, C. Monaco, F. Pepe
Summary: This research reconstructs the evolution of the Squillace Basin in the Calabrian Arc from the Late Miocene to Recent times and identifies active shallow and deep structures using a multiscale approach. The study suggests that these structures are active and likely responsible for major earthquakes in the Ionian offshore.
Article
Geochemistry & Geophysics
Miki Tasaka, Yuga Nakai, Yumiko Harigane, Auer Andreas
Summary: In order to better understand plate dynamics, such as the opening of Japan Sea back-arc basins, it is crucial to know why and how back-arc spreading/rifting occurs near convergent plate boundaries. Two proposed models for the formation of Japan Sea back-arc basins are the slab rollback model and the plume model. Through the study of peridotite xenoliths in the Cenozoic Kawashimo volcano in southwest Japan, it was found that these xenoliths preserve textures that formed during mantle deformation, supporting the hot mantle plume hypothesis as the mechanism for the formation of Japan Sea back-arc basins.
Article
Geochemistry & Geophysics
Camilla Palmiotto, Roberto Braga, Laura Corda, Letizia Di Bella, Valentina Ferrante, Maria Filomena Loreto, Filippo Muccini
Summary: The geology, geophysics, and geodynamics of the Tyrrhenian Back-Arc Basin (BAB) in the central Mediterranean Sea have been extensively studied, but there are still some unresolved topics, such as the possible migration of the volcanic arc during the Ionian subduction. This study improves our understanding of the geodynamics of the Tyrrhenian BAB in the area south of the Vavilov Volcano through the analysis of multibeam bathymetry and unpublished single-channel reflection seismic and magnetic data. Petrology of igneous rocks as well as facies and microfaunas of carbonates provide additional insights. The Augusto and Aurelia seamounts are interpreted as part of the active volcanic arc seaward of the Tyrrhenian BAB in the Late Pliocene-Early Pleistocene.
Article
Geochemistry & Geophysics
Yanhong Chen, Yaoling Niu, Qiqi Xue, Yajie Gao, Paterno Castillo
Summary: The geology and magmatism of the northern Mariana Trough (NMT) represent a type example for the development of a back-arc basin. Studies have shown systematic variations in Fe isotopes and element compositions of basalts from south to north, revealing source variations and contributions of slab materials and mantle characteristics. This tectonic-magma evolution is manifested through the geochemistry and petrology of the NMTB samples, highlighting the importance of lithospheric characteristics in subduction initiation.
EARTH AND PLANETARY SCIENCE LETTERS
(2021)
Article
Engineering, Marine
Yuliya Koudryashova, Tatiana Chizhova, Mutsuo Inoue, Kazuichi Hayakawa, Seiya Nagao, Evgeniya Marina, Rodrigo Mundo
Summary: This study examined the vertical distribution of polycyclic aromatic hydrocarbons (PAHs) in the Japan Basin in the Sea of Japan. The highest concentration of PAHs was found in the mesopelagic realm, likely due to deep convection and/or subduction of intermediate water, as well as the biogeochemical setting in the western Japan Basin. Dissolved PAHs were more prevalent than particulate PAHs at all depths, and hydrophobicity played a role in the distribution of higher-molecular-weight PAHs. The flux calculations showed that biological pumps and overturning circulation contribute equally to removing PAHs from the deep waters of the Japan Basin.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2022)
Article
Geosciences, Multidisciplinary
Jinping Liu, Sanzhong Li, Xianzhi Cao, Hao Dong, Yanhui Suo, Zhaoxia Jiang, Jie Zhou, Xiyao Li, Ruixin Zhang, Lijun Liu, Gillian Rose Foulger
Summary: Insight into the evolution of Philippine Sea-South China Sea (SCS) plate motions and their driving mechanisms are presented based on recent geological and seismic data. A new plate reconstruction model suggests a sinistral strike-slip fault at the western boundary of the Philippine Sea Plate with a clockwise self-rotation. The connection between the SCS and Shikoku Ridges possibly originated at 30 Ma, indicating an affinitive origin and magma source. Geodynamic simulations indicate that the seismic high-velocity body under the SCS is likely the leading edge of the Pacific Slab.
GEOPHYSICAL RESEARCH LETTERS
(2023)
Article
Geochemistry & Geophysics
J. Hosoi, Y. Tanii, M. Okada, Y. Haneda
Summary: This study reveals the rotation characteristics of the Tanakura transtensional basin in Japan and suggests that this rotation is related to rifting caused by back-arc spreading. The study shows that the Tanakura Basin was formed by displacement along the Tanakura Fault Zone and that the rotation of the basin occurred simultaneously with the rifting activity. This research provides detailed insights into the development and rotation of the Tanakura Basin.
Article
Geography, Physical
Teal R. Riley, Alex Burton-Johnson, Philip T. Leat, Kelly A. Hogan, Alison M. Halton
Summary: The ancestral South Sandwich arc (ASSA) provides evidence of Oligocene - Miocene island arc volcanism in the central Scotia Sea, acting as a topographic barrier to deep ocean currents during the early Antarctic Circumpolar Current development. New research on basaltic samples from Discovery Bank shows volcanism was active from 14 to 10 Ma, younger than previously thought, influencing deep ocean pathways in the midMiocene. Geochemical analysis suggests magmatism was derived from a depleted asthenospheric source, modified by subduction, similar to the present day South Sandwich island arc.
GLOBAL AND PLANETARY CHANGE
(2021)
Article
Geochemistry & Geophysics
Clement Garrocq, Serge Lallemand, Boris Marcaillou, Jean-Frederic Lebrun, Crelia Padron, Frauke Klingelhoefer, Mireille Laigle, Philippe Munch, Aurelien Gay, Laure Schenini, Marie-Odile Beslier, Jean-Jacques Cornee, Bernard Mercier de Lepinay, Frederic Quillevere, Marcelle BouDagher-Fadel
Summary: This study refines the understanding of the basement structure, depositional history, tectonic deformation, and vertical motions of the Grenada Basin and its margins by combining a large set of deep-penetrating multichannel seismic reflection data and dredge samples with published data. The study reveals the late Paleocene-early Eocene rifting in a NW-SE direction and subsequent seafloor spreading during the middle Eocene, as well as the subsidence of the Aves Ridge along with the Grenada Basin since at least the middle Eocene. The findings also suggest that bathymetric highs remained shallow enough to develop carbonate platforms until the late Miocene.
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
(2021)
Article
Geosciences, Multidisciplinary
Hui Chen, Dorrik A. Stow, Xinong Xie, Jianye Ren, Kainan Mao, Ya Gao, Beichen Chen, Wenyan Zhang, Thomas Vandorpe, David Van Rooij
Summary: The study analyzes the sediment budget and fan system development in the Northwest Sub-basin of the South China Sea since the Late Miocene, revealing the impact of sediment supply changes on the formation of two interdigitating basin-floor fan systems. The Xisha fan and Pearl River fan experienced different sediment supply patterns during different periods, providing insights into the sediment source-to-sink processes in marginal oceanic basins like the South China Sea.
MARINE AND PETROLEUM GEOLOGY
(2021)
Article
Geosciences, Multidisciplinary
Toshiki Haji, Atsushi Yamaji, Hideki Iwano, Tohru Danhara, Takafumi Hirata
Summary: The study in the Kumano area of SW Japan revealed a voluminous near-trench magmatism around 15 Ma, resulting in batholiths, cauldrons, and numerous dikes. The orientation data of felsic and mafic dikes suggest a normal-faulting stress regime with NE-SW extension, which differs from popular tectonic models of SW Japan. The formation of the dikes at approximately 14.5 Ma and the presence of trench-perpendicular shortening suggest that extensional stress may have resulted from uplift caused by the emplacement of a batholith under the Kumano area.
JOURNAL OF ASIAN EARTH SCIENCES
(2022)
Article
Geography, Physical
Steffen Kiel, Kazutaka Amano, Robert G. Jenkins
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2016)
Article
Geosciences, Multidisciplinary
Kazuko Usami, Ken Ikehara, Robert G. Jenkins, Juichiro Ashi
Article
Geography, Physical
Robert G. Jenkins, Takashi Hasegawa, James W. Haggart, Akiko S. Goto, Yuya Iwase, Chiharu Nakase
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2017)
Article
Paleontology
Kazutaka Amano, Robert G. Jenkins, Hiroshi Kurita
JOURNAL OF PALEONTOLOGY
(2018)
Article
Paleontology
Robert G. Jenkins, Andrzej Kaim, Yoshinori Hikida, Steffen Kiel
JOURNAL OF PALEONTOLOGY
(2018)
Article
Geology
Yusuke Miyajima, Yumiko Watanabe, Robert G. Jenkins, Akiko S. Goto, Takashi Hasegawa
JOURNAL OF SEDIMENTARY RESEARCH
(2018)
Article
Limnology
Tomo Kitahashi, Robert G. Jenkins, Shigeaki Kojima, Motohiro Shimanaga
LIMNOLOGY AND OCEANOGRAPHY
(2018)
Article
Paleontology
Robert G. Jenkins, Andrzej Kaim, Kazutaka Amano, Kazuhiko Sakurai, Kosuke Matsubara
PALEONTOLOGICAL RESEARCH
(2018)
Editorial Material
Multidisciplinary Sciences
Brett Davis, Nak Young Chong, Hermine Tertrais, Robert Jenkins
Article
Geosciences, Multidisciplinary
Yusuke Miyajima, Yumiko Watanabe, Akiko S. Goto, Robert G. Jenkins, Saburo Sakai, Ryo Matsumoto, Takashi Hasegawa
JOURNAL OF ASIAN EARTH SCIENCES
(2020)
Article
Marine & Freshwater Biology
Kazutaka Amano, Yusuke Miyajima, Robert G. Jenkins, Steffen Kiel
Article
Marine & Freshwater Biology
Kazutaka Amano, Krzysztof Hryniewicz, Robert G. Jenkins
Article
Paleontology
Robert G. Jenkins, Andrzej Kaim, Kei Sato, Kazuhiro Moriya, Yoshinori Hikida, Ren Hirayama
ACTA PALAEONTOLOGICA POLONICA
(2017)
Article
Paleontology
Krzysztof Hryniewicz, Kazutaka Amano, Robert G. Jenkins, Steffen Kiel
ACTA PALAEONTOLOGICA POLONICA
(2017)
Article
Marine & Freshwater Biology
Kazutaka Amano, Robert G. Jenkins
JOURNAL OF CONCHOLOGY
(2017)
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)