Article
Geography, Physical
Nadja Zupan Hajna, Andrej Mihevc, Pavel Bosak, Petr Pruner, Helena Hercman, Ivan Horacek, Jan Wagner, Stanislav Cermak, Jacek Pawlak, Paula Sierpien, Simon Kdyr, Lucie Jurickova, Astrid Svara
Summary: The sedimentological record in the Raciska pecina cave is well-preserved and provides valuable data on paleoenvironmental changes over the past 3.4 million years. Despite hiatuses in sedimentation typical for cave records, the study has significantly enhanced our understanding of long-lasting deposition characteristics and environmental changes in the caves. The detailed chronology created based on magnetostratigraphy and isotopic oxygen stratigraphy has correlated with various dating techniques to provide a comprehensive picture of the environmental evolution in the region.
QUATERNARY INTERNATIONAL
(2021)
Article
Geography, Physical
Mark J. Sier, Guillaume Dupont-Nivet, Cor Langereis, Alan L. Deino, John D. Kingston, Andrew S. Cohen
Summary: The Hominin Sites and Paleolakes Drilling project (HSPDP) aims to study the impact of climate and environmental changes on human evolution in eastern Africa. By analyzing a 228 m core from the Chemeron Formation in the Baringo Basin, the project has identified vertebrate fossils and hominin remains, contributing to the chronological framework of the region. The paleomagnetic data from the core has revealed important paleomagnetic reversals, providing valuable chronostratigraphic tie-points for understanding the age range of the Baringo core.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2021)
Article
Multidisciplinary Sciences
Molly J. Stout, Jessica Chubiz, Nandini Raghuraman, Peinan Zhao, Methodius G. Tuuli, Lihong Wang, Alison G. Cahill, Phillip S. Cuculich, Yong Wang, Emily S. Jungheim, Erik D. Herzog, Justin Fay, Alan L. Schwartz, George A. Macones, Sarah K. England
Summary: The Washington University Prematurity Research Cohort Study has collected a large amount of data and samples during pregnancy to explore the underlying physiology of preterm birth, providing new methods and approaches for predicting and preventing preterm birth.
Article
Geochemistry & Geophysics
Xin Jin, Marco Franceschi, Rossana Martini, Zhiqiang Shi, Piero Gianolla, Manuel Rigo, Corey J. Wall, Mark D. Schmitz, Gang Lu, Yixing Du, Xiangtong Huang, Nereo Preto
Summary: This paper investigates sea-level fluctuations during the Carnian Pluvial Episode (CPE) and provides important insights into the timing and global scale of sea-level changes during this period. The study also highlights a Tethys-wide crisis and recovery of microbial carbonate production and sheds light on commonalities with other geological times when similar transformations in carbonate systems were linked to ocean acidification.
EARTH AND PLANETARY SCIENCE LETTERS
(2022)
Article
Geochemistry & Geophysics
Ahmed Nasser Mahgoub, Monika Korte, Sanja Panovska
Summary: Polarity reversals and excursions in the Earth's liquid outer core are significant geomagnetic field changes, and studying them helps understand geodynamo processes. This study uses a new global geomagnetic field model based on paleomagnetic data (GGFMB) to examine the Matuyama-Brunhes (MB) reversal. GGFMB covers 900-700 ka and allows investigation of the Kamikatsura excursion (ca. 888 ka).
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
(2023)
Article
Geochemistry & Geophysics
Ahmed Nasser Mahgoub, Monika Korte, Sanja Panovska
Summary: Magnetic field reversals are irregular events in Earth's history when the geomagnetic field changes its polarity. A study using a global set of paleomagnetic data from sediments and volcanic rocks covering the period 900-700 ka explored the evolution of the latest field reversal, the Matuyama-Brunhes reversal (MBR). Four phases of field instability were observed, with the reversal process lasting approximately 30,000 years and ending around 770 ka.
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
(2023)
Article
Geography, Physical
Louisa Dent, Leon Normore, Nicholas B. Sullivan, Yong Yi Zhen, Anne Forbes
Summary: This study presents new stable carbon isotope data from the Lower-Middle Ordovician in Western Australia, providing insight into the global distribution of dissolved inorganic carbon. The analysis of core samples from petroleum well Olympic 1 in the Canning Basin offers valuable information on isotopic trends and correlation with other regions, contributing to a better understanding of major oceanographic events and the larger Ordovician world.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2021)
Article
Geography, Physical
Mark W. Hounslow, Samuel E. Harris, Krystian Wojcik, Jerzy Nawrocki, Kenneth T. Ratcliffe, Nigel H. Woodcock, Paul Montgomery
Summary: Magnetostratigraphic studies of the Ordovician provide evidence for the nature of core-mantle boundary interactions, and the new data contribute to a near-complete magnetic polarity chronostratigraphic scale through the Middle and Upper Ordovician. The magnetic signal is carried by both haematite and magnetite, with correlations between lithologies and local magnetic susceptibility, providing validation of a primary palaeomagnetic signal. The reversal frequencies for the mid and late Ordovician are estimated to be 1.7 and 1.5 Myr (-1) respectively.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2021)
Review
Environmental Sciences
Jan Zalasiewicz, Colin N. Waters, Erle C. Ellis, Martin J. Head, Davor Vidas, Will Steffen, Julia Adeney Thomas, Eva Horn, Colin P. Summerhayes, Reinhold Leinfelder, J. R. McNeill, Agnieszka Galuszka, Mark Williams, Anthony D. Barnosky, Daniel de B. Richter, Philip L. Gibbard, Jaia Syvitski, Catherine Jeandel, Alejandro Cearreta, Andrew B. Cundy, Ian J. Fairchild, Neil L. Rose, Juliana A. Ivar do Sul, William Shotyk, Simon Turner, Michael Wagreich, Jens Zinke
Summary: The term Anthropocene emerged in the early 2000s to signify the end of the Holocene Epoch due to human activities, initially linked to the Industrial Revolution and later associated with global industrialization and globalization. While the concept is being evaluated for inclusion in the Geological Time Scale, it has also been applied in various scholarly fields with broader interpretations extending beyond the mid-twentieth century.
Article
Chemistry, Multidisciplinary
P. G. Haddad, M. Ranchou-Peyruse, M. Guignard, J. Mura, F. Casteran, L. Ronjon-Magand, P. Senechal, M-P Isaure, P. Moonen, G. Hoareau, D. Dequidt, P. Chiquet, G. Caumette, P. Cezac, A. Ranchou-Peyruse
Summary: This study aims to investigate the effect of H2 injection on the interactions between water formation, reservoir rock, gas mixture and microbial ecosystems in underground gas storage. The experimental results suggest that microbial life in deep aquifers plays a significant role in the transformation of H2, especially in relation to sulfate, CO2, calcite, and H2 concentrations in the system.
ENERGY & ENVIRONMENTAL SCIENCE
(2022)
Article
Geosciences, Multidisciplinary
Weijian Zhou, Xianghui Kong, Yajuan Du, Xingjun Xie, Feng Xian, Ling Tang, Jie Zhou, Guoqing Zhao, Yunchong Fu, Ning Chen
Summary: The Matuyama-Gauss magnetic polarity reversal is an important time marker in the stratigraphic division of the Quaternary-Neogene. Previous paleomagnetic studies have shown that the timing of this reversal recorded in Chinese loess is different from marine sediments. By using meteoric Be-10, this study provides evidence that the magnetic overprinting has occurred and the Be-10-derived M-G boundary in the loess profiles is synchronous with the marine sediments but approximately 19 ka younger than the boundary inferred from paleomagnetic measurements.
GEOPHYSICAL RESEARCH LETTERS
(2023)
Article
Geosciences, Multidisciplinary
Colin N. Waters, Mark Williams, Jan Zalasiewicz, Simon D. Turner, Anthony D. Barnosky, Martin J. Head, Scott L. Wing, Michael Wagreich, Will Steffen, Colin P. Summerhayes, Andrew B. Cundy, Jens Zinke, Barbara Fialkiewicz-Koziel, Reinhold Leinfelder, Peter K. Haff, J. R. McNeill, Neil L. Rose, Irka Hajdas, Francine M. G. McCarthy, Alejandro Cearreta, Agnieszka Galuszka, Jaia Syvitski, Yongming Han, Zhisheng An, Ian J. Fairchild, Juliana A. Ivar do Sul, Catherine Jeandel
Summary: Event stratigraphy is used to identify the Anthropocene by categorizing distinct events, with the Great Acceleration Event Array (GAEA) being the most notable. The GAEA represents a significant transition in the Earth System, indicating the base of the Anthropocene as a new geological epoch.
EARTH-SCIENCE REVIEWS
(2022)
Article
Geosciences, Multidisciplinary
Tengfei Song, Claude Hillaire-Marcel, Yanguang Liu, Bassam Ghaleb, Anne de Vernal
Summary: This paper reviews all available 230Th data from the Arctic Ocean to describe the regional behavior of 230Thxs within the geological time frame of the late glacial/interglacial cycles. The study reveals that 230Thxs fluxes are linked to various factors such as sea-ice regime, brine production rate, organic carbon fluxes, and oceanic exchange. These findings shed light on the use and limitations of these records.
EARTH-SCIENCE REVIEWS
(2023)
Article
Geosciences, Multidisciplinary
Timothy Topper, Marissa J. Betts, Dorj Dorjnamjaa, Guoxiang Li, Luoyang Li, Gundsambuu Altanshagai, Batkhuyag Enkhbaatar, Christian B. Skovsted
Summary: The classification and correlation of the Ediacaran-Cambrian boundary remains uncertain, but new data from the Zavkhan Basin in Mongolia sheds light on the issue.
EARTH-SCIENCE REVIEWS
(2022)
Article
Geochemistry & Geophysics
Damaris Montano, Marta Gasparrini, Axel Gerdes, Giovanna Della Porta, Richard Albert
Summary: The Nordlinger Ries Crater in Southwest Germany, formed by a meteorite impact in the Miocene, provides a well-established geological framework for studying lacustrine carbonate using U-Pb LA-ICPMS method. The study demonstrates the accuracy and potential of this method in determining the timing of sedimentation in lacustrine systems.
EARTH AND PLANETARY SCIENCE LETTERS
(2021)
Article
Geography, Physical
A. Yu Puzachenko, A. K. Markova
QUATERNARY INTERNATIONAL
(2019)
Article
Geography, Physical
Andrey Yu. Puzachenko, Anastasia K. Markova, Kamilla Paw l Owska
Summary: This study investigates the evolution of species composition and species richness in two Central European bioregional mammal assemblages from the Middle Pleistocene to the Middle Holocene. The study reveals non-linearity, nonstationary states, reversible and irreversible changes, and adaptive dynamics in the evolution of mammal assemblages. The results also show the response of regional faunas to global climate changes, with different contents, directions, and consequences mediated by current species composition and geographic positions. The study concludes that mammal assemblage evolution is a complex system with emergent properties and irreducibility of complexity.
QUATERNARY INTERNATIONAL
(2022)
