Article
Geosciences, Multidisciplinary
Daniele Reghellin, Helen K. Coxall, Gerald R. Dickens, Simone Galeotti, Jan Backman
Summary: The late Miocene-early Pliocene biogenic bloom has been observed in eastern sites of the equatorial Pacific, but its full extent and geometry in the western sites are still not fully understood. This study reveals that the equatorial upwelling in the western Pacific generated cooler sea surface temperatures and was more focused and deviated from the equator during the bloom period.
PALEOCEANOGRAPHY AND PALEOCLIMATOLOGY
(2022)
Article
Geosciences, Multidisciplinary
Clara T. Bolton, Emmeline Gray, Wolfgang Kuhnt, Ann E. Holbourn, Julia Luebbers, Katharine Grant, Kazuyo Tachikawa, Gianluca Marino, Eelco J. Rohling, Anta-Clarisse Sarr, Nils Andersen
Summary: In the modern northern Indian Ocean, biological productivity is closely related to the near-surface oceanographic dynamics driven by the South Asian monsoon. The sedimentary record of the late Pleistocene reveals strong seasonal variations due to the dominance of precession, which affects the contrast in oceanographic conditions. However, little is known about orbital-scale monsoon variability before the late Pleistocene, when CO2 levels and global temperatures were higher.
CLIMATE OF THE PAST
(2022)
Article
Geosciences, Multidisciplinary
Cong Wang, Jing Li, Qinhuo Liu, Alfredo Huete, Longhui Li, Yadong Dong, Jing Zhao
Summary: The study reveals that the El Nino-Southern Oscillation (ENSO) has diverse effects on vegetation in the west Pacific region, and different types of ENSO events lead to different vegetation anomalies, which are closely related to variations in precipitation and temperature.
GEOPHYSICAL RESEARCH LETTERS
(2022)
Article
Geosciences, Multidisciplinary
Lina Zhai, Shiming Wan, Christophe Colin, Debo Zhao, Yuntao Ye, Zhaojun Song, Xuebo Yin, Xuefa Shi, Anchun Li
Summary: Through a multiproxy study of sediments from IODP Sites U1425 and U1430 in the Japan Sea, it was found that anoxic deep-water existed in the Japan Sea before 7.4 Ma, possibly caused by nearly complete denitrification. In contrast, enhanced deep-water oxygenation and decreased organic matter burial were observed in the Japan Sea from 7.4 to 4 Ma, potentially due to increases in surface salinity in the North Pacific breaking ocean stratification.
PALEOCEANOGRAPHY AND PALEOCLIMATOLOGY
(2021)
Article
Multidisciplinary Sciences
Xingchen Tony Wang, Yuwei Wang, Alexandra Auderset, Daniel M. Sigman, Haojia Ren, Alfredo Martinez-Garcia, Gerald H. Haug, Zhan Su, Yi Ge Zhang, Birger Rasmussen, Alex L. Sessions, Woodward W. Fischer
Summary: This study reveals the expansion of ODZs in the southeastern Pacific since the late Miocene, accompanied by a major increase in ocean nutrient content, indicating a connection between the formation and development of modern ODZs and historically high concentrations of seawater phosphate.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Article
Geochemistry & Geophysics
Jiayi Lu, Huan Yang, Michael L. Griffiths, Natalie J. Burls, Guoqiao Xiao, Jilong Yang, Jessica K. Wang, Kathleen R. Johnson, Shucheng Xie
Summary: The study suggests that during the Early Pliocene, the redistribution of monsoon rainfall across East Asia was likely due to the equatorward contraction of the western Pacific warm pool, reduced summer convection in the western subtropical Pacific, and the strengthening of the Hadley and Walker circulations.
EARTH AND PLANETARY SCIENCE LETTERS
(2021)
Article
Geosciences, Multidisciplinary
Rachel M. Brown, Thomas B. Chalk, Anya J. Crocker, Paul A. Wilson, Gavin L. Foster
Summary: The late Miocene cooling event was accompanied by a decline in carbon dioxide, and the equilibrium climate sensitivity during this time period was comparable to the late Pleistocene and the twenty-first century.
Article
Environmental Sciences
Ying-Ying Chen, Kai Yu
Summary: The response of the equatorial Pacific SSTAC to CO2-induced global warming was examined using 15 CMIP5 experiments. The study found that there were no statistically significant changes in the SSTAC amplitude in the future. Most models showed weaker propagation speed, stronger annual and semi-annual external forcing, and varied damping rates.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Multidisciplinary Sciences
B. -Th Karatsolis, B. C. Lougheed, D. De Vleeschouwer, J. Henderiks
Summary: This study found that ocean productivity abruptly declined about 4.6 million years ago, potentially due to reduced seasonality and monsoon intensity leading to decreased nutrient supply. The previous period of productivity bloom was attributed to an increase or redistribution of available nutrients. The decline in low-latitude ocean productivity was found to be linked to a weakened monsoon and decreased riverine nutrient supply.
NATURE COMMUNICATIONS
(2022)
Article
Geochemistry & Geophysics
Mengyuan Wang, Huanye Wang, Zhixin Zhu, Xiaoqiang Yang, Ke Zhang, Yancheng Zhang, Weiguo Liu, Zhuo Zheng, Yongqiang Zong, Zhonghui Liu
Summary: Research indicates that the evolution of Asian Summer Monsoon (ASM) during the Late Miocene and Pliocene experienced three phases: weak ASM strength around 6.5-5.6 million years ago, significantly enhanced strength between 5.6-4.3 million years ago, and a slightly reduced but strengthening trend after 4.3 million years ago. The study reveals a close relationship between ASM strength and tropical temperature, suggesting a developing influence of Walker Circulation on ASM strength during the Late Pliocene.
EARTH AND PLANETARY SCIENCE LETTERS
(2021)
Article
Geosciences, Multidisciplinary
Zhilin He, Zhongshi Zhang, Zhengtang Guo, Christopher R. Scotese, Chenglong Deng
Summary: Global cooling events occurred during the middle Miocene (around 14-13 Ma) and the late Miocene (around 7-6 Ma), with the Antarctic Ice Sheet expanding and Northern Hemisphere glaciation initiating during these periods. The causes of these events are still unclear, but paleoclimate modeling provides an important approach for investigating the mechanisms.
PALEOCEANOGRAPHY AND PALEOCLIMATOLOGY
(2021)
Article
Zoology
Sarah Trubovitz, Johan Renaudie, David Lazarus, Paula Noble
Summary: This study focuses on a review of 101 lophophaenid taxa found in marine sediments from the Late Neogene to the Recent period, particularly in the eastern equatorial Pacific. It addresses the challenges in classifying lophophaenids due to their small size, complex morphology, and weak taxonomic framework. The researchers discuss existing lophophaenid genera and describe new species and genera, providing a practical framework for identifying and understanding these organisms.
Article
Geology
Mathia Sabino, Daniel Birgel, Marcello Natalicchio, Francesco Dela Pierre, Jorn Peckmann
Summary: This study investigates the impact of the crisis on the carbon cycle in the Mediterranean Sea. The results show that the crisis led to C-13 enrichment of the DIC pool, primarily due to the export of C-12 to the seafloor after phytoplankton blooms, and limited replenishment of remineralized carbon due to the stabilization of thermohaline stratification.
Article
Geosciences, Multidisciplinary
Zhixiang Wang, Chunju Huang, David B. Kemp, Ze Zhang, Yu Sui
Summary: The study uses sediment archives to reconstruct climate changes and orbital forcing during the late Miocene in Northeast China, revealing different responses of the East Asian summer and winter monsoons to astronomical forcing. This further confirms the variability of East Asian climate on orbital time scales.
GEOLOGICAL SOCIETY OF AMERICA BULLETIN
(2021)
Article
Agronomy
Manuel Gonzalez-Rosado, Luis Parras-Alcantara, Jesus Aguilera-Huertas, Beatriz Lozano-Garcia
Summary: The study found that conventional tillage and no tillage with herbicide application practices showed unsustainable erosion values, while no tillage with cover crop management decreased erosion rates. No tillage with cover crop not only reduced erosion rates but also changed the trend of soil productivity loss observed under conventional tillage and no tillage with herbicide application. Therefore, no tillage with cover crop had a positive influence on soil quality.
Article
Geochemistry & Geophysics
Diederik Liebrand, Helen M. Beddow, Lucas J. Lourens, Heiko Paelike, Isabella Raffi, Steven M. Bohaty, Frederik J. Hilgen, Mischa J. M. Saes, Paul A. Wilson, Arnold E. van Dijk, David A. Hodell, Dick Kroon, Claire E. Huck, Sietske J. Batenburg
EARTH AND PLANETARY SCIENCE LETTERS
(2016)
Article
Paleontology
Marina Ciummelli, Isabella Raffi, Jan Backman
JOURNAL OF MICROPALAEONTOLOGY
(2017)
Article
Geology
Isabella Raffi, Cristiano Ricci, Adele Garzarella, Marco Brandano, Irene Cornacchia, Laura Tomassetti
NEWSLETTERS ON STRATIGRAPHY
(2016)
Article
Geology
Marco Brandano, Irene Cornacchia, Isabella Raffi, Laura Tomassetti, Samuele Agostini
Article
Geosciences, Multidisciplinary
Paul N. Pearson, Bridget S. Wade, Jan Backman, Isabella Raffi, Simonetta Moneche
Review
Paleontology
Claudia Agnini, Simonetta Monechi, Isabella Raffi
Article
Multidisciplinary Sciences
Diederik Liebrand, Anouk T. M. de Bakker, Helen M. Beddow, Paul A. Wilson, Steven M. Bohaty, Gerben Ruessink, Heiko Paelike, Sietske J. Batenburg, Frederik J. Hilgen, David A. Hodell, Claire E. Huck, Dick Kroon, Isabella Raffi, Mischa J. M. Saes, Arnold E. van Dijk, Lucas J. Lourens
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2017)
Article
Geosciences, Multidisciplinary
Elizabeth M. Balmer, Alastair H. F. Robertson, Isabella Raffi, Dick Kroon
GEOLOGICAL MAGAZINE
(2019)
Article
Geography, Physical
Irene Cornacchia, Marco Brandano, Isabella Raffi, Laura Tomassetti, Isabella Flores
GLOBAL AND PLANETARY CHANGE
(2018)
Article
Geology
Alastair H. F. Robertson, Mehmet Necdet, Isabella Raffi, Guohui Chen
SEDIMENTARY GEOLOGY
(2019)
Article
Geology
Amalia Notaro, Isabella Raffi, Daniele Reghellin
Summary: Reticulofenestra pseudoumbilicus is a Neogene calcareous nannofossil species with an evolutionary emergence in the Early Miocene, estimated to be around 16.46 Ma. Its stratigraphic range is characterized by repeated occurrences and disappearances over a period of about 13 million years, influenced by global climatic and environmental conditions, particularly temperature variations. The species' presence at different stratigraphic intervals may represent an example of iterative evolution, influenced by complex external factors related to the dynamic climate and environmental evolution during the Miocene.
RIVISTA ITALIANA DI PALEONTOLOGIA E STRATIGRAFIA
(2023)
Review
Multidisciplinary Sciences
Isabella Raffi, Jan Backman
Summary: This paper highlights the importance of calcareous nannofossils in geosciences, specifically as a dating tool. Calcareous nannofossils are widely distributed in Mesozoic and Cenozoic carbonate-bearing marine sediments and are routinely used for stratigraphic purposes. Their abundance, taxonomic diversity, rapid evolution, and wide distribution in marine environments make them valuable for relative dating of marine sediments and interpretation of other stratigraphic records.
RENDICONTI LINCEI-SCIENZE FISICHE E NATURALI
(2022)
Article
Geosciences, Multidisciplinary
Diederik Liebrand, Isabella Raffi, Angela Fraguas, Remi Laxenaire, Joyce H. C. Bosmans, Frederik J. Hilgen, Paul A. Wilson, Sietske J. Batenburg, Helen M. Beddow, Steven M. Bohaty, Paul R. Bown, Anya J. Crocker, Claire E. Huck, Lucas J. Lourens, Luciana Sabia
PALEOCEANOGRAPHY AND PALEOCLIMATOLOGY
(2018)
Article
Geology
Adele Garzarella, Isabella Raffi
RIVISTA ITALIANA DI PALEONTOLOGIA E STRATIGRAFIA
(2018)
Article
Geosciences, Multidisciplinary
Thomas Westerhold, Ursula Roehl, Thomas Frederichs, Claudia Agnini, Isabella Raffi, James C. Zachos, Roy H. Wilkens
CLIMATE OF THE PAST
(2017)