Article
Geosciences, Multidisciplinary
Christina S. Larkin, Mohamed M. Ezat, Natalie L. Roberts, Henning A. Bauch, Robert F. Spielhagen, Riko Noormets, Leonid Polyak, Steven G. Moreton, Tine L. Rasmussen, Michael Sarnthein, Edward T. Tipper, Alex M. Piotrowski
Summary: Neodymium isotope records reveal significant changes in deep-water formation and ocean circulation in the Nordic Seas and Arctic Ocean over the past 350,000 years. Deep-water formation was vigorous during the last glacial maximum but declined during deglaciation.
Article
Green & Sustainable Science & Technology
Dennis Powalla, Stefan Hoerner, Olivier Cleynen, Dominique Thevenin
Summary: A numerical approach combining computational fluid dynamics and the discrete element method is introduced to assess the injury risk of fish during turbine passages. Fish behavior models are incorporated into the approach through an additional force term acting on the particles. The study demonstrates that the behavior of fish surrogates can be actively tuned and adapted to local flow conditions, allowing for both individual and collective behavior.
Article
Geochemistry & Geophysics
Miquel Camafort, Cesar R. Ranero, Eulalia Gracia
Summary: The Nubia and Eurasian plates have a poorly defined boundary along the Northern Tunisian continental margin. The Tunisian margin is deformed by slow convergence, resulting in a diffuse deformation zone with less seismic activity compared to neighboring regions. This study analyzes the active tectonics in this submarine margin using high-resolution bathymetric maps and echosounder images, revealing a predominance of transpressive to compressive faulting. The North-eastern Domain of the study area has the highest number of active faults.
Review
Geology
Heinrich Bahlburg
Summary: This passage points out that reconstructions of the plate tectonic history of a continental margin are rarely unique. It also discusses the significance of the Chilenia terrane and coeval magmatism in Argentina and provides a perspective on this issue.
INTERNATIONAL GEOLOGY REVIEW
(2023)
Article
Engineering, Mechanical
Asim Onder
Summary: This paper investigates the performance of bumper plates with wavy surfaces under hypervelocity impact and finds that they are more effective in decreasing the impact energy compared to flat plates. The study also reveals the distinctive debris cloud generation that has never been reported before.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2024)
Article
Geochemistry & Geophysics
Shun Guo, Joerg Hermann, Pan Tang, Xu Chu, Yi Chen, Bin Su
Summary: This study reveals that carbon-bearing silicate melts can form through the interaction of slab-derived, carbon-free, silicate melts with eclogite-facies metacarbonate rocks in a subduction-collision environment. This provides a new mechanism for the enrichment of carbon in slab-derived melts and an important pathway for the massive extraction of carbon from subducted slabs.
EARTH AND PLANETARY SCIENCE LETTERS
(2022)
Article
Geology
Heinrich Bahlburg
Summary: This study discusses the geological evolution of the Devonian southern Andes, highlighting the period of Silurian-Devonian lull and the evidence of volcanic magmatism found in northern Chile. It provides a new perspective for studying the tectonic evolution of the region.
INTERNATIONAL GEOLOGY REVIEW
(2022)
Article
Geosciences, Multidisciplinary
Yong Il Lee, Jae Il Lee, Yong Seok Choi
Summary: During the Mesozoic period, the Korean Peninsula was an active continental margin with the development of an accretionary complex. The Cretaceous Gyeongsang Basin is considered an extensional basin formed by the oblique subduction of the Paleo-Pacific Plate. The basin's pre-volcanic stage was a forearc basin formed by extensional stresses related to the subduction of an oceanic plateau.
EARTH-SCIENCE REVIEWS
(2023)
Article
Engineering, Geological
Shufeng Tian, Yujia Li, Guisheng Hu, Ningsheng Chen, Kanglin Wu, Mahfuzur Rahman, Taixin Peng, Huayong Ni
Summary: This paper discusses the features and causes of the Qijiaba landslide that occurred in Wufu village, Sichuan Province, China and investigates them using field investigations, remote sensing interpretations, and laboratory-based soil experiments. The results show that this type of landslide is difficult to predict due to the sudden decrease in soil strength and the presence of rich clay minerals. The crucial factors that triggered the landslide were the rainfall and the large water confluence area behind the landslide area.
Article
Geosciences, Multidisciplinary
Yuchi Cui, Lei Shao, Zheng-Xiang Li, Weilin Zhu, Peijun Qiao, Xiangtao Zhang
Summary: Integrated analyses of in situ zircon U-Pb ages and geochemistry on samples from below the Cenozoic sedimentary cover in the northern South China Sea basin suggest a coastal source for metavolcaniclastic and metasedimentary rocks deposited around 145-85 Ma, indicating the presence of an Andean-type continental arc during the Middle Jurassic to Early Cretaceous. This arc ceased magmatism by 85 Ma, with the last pulse around 100-85 Ma, jumping towards the Western Pacific Ocean and initiating the development of the Western Pacific-type plate margin.
Article
Astronomy & Astrophysics
A. Capetti, M. Brienza, B. Balmaverde, P. N. Best, R. D. Baldi, A. Drabent, G. Gurkan, H. J. A. Rottgering, C. Tasse, B. Webster
Summary: The properties and origin of radio emission in the most luminous, early-type galaxies in the nearby Universe were studied using observations from the Low-Frequency Array. It was found that there is a positive link between the stellar luminosity of these galaxies and their radio power, detection rate, and fraction of extended sources. The prevalence of compact radio sources and the presence of extended emission were confirmed. Some of the radio emission in these galaxies may be attributed to star forming regions.
ASTRONOMY & ASTROPHYSICS
(2022)
Article
Chemistry, Physical
T. Huyen Vuong, N. Rockstroh, U. Bentrup, J. Rabeah, J. Knossalla, S. Peitz, R. Franke, A. Brueckner
Summary: A series of supported Ni/SiO2-Al2O3 catalysts with different Al/Si ratios have been prepared and analyzed during dimerization of n-butenes under industrially relevant conditions. It was found that Bronsted acid sites play a dual role in stabilizing active Ni single species and promoting undesired branching reactions for C-8 products. Optimum catalysts should contain a maximum number of single Ni sites in the immediate vicinity of Bronsted surface sites to suppress isomerization.
Article
Geosciences, Multidisciplinary
Ajay Kumar, Mohamedharoon A. Shaikh, Sarabjeet Singh, Tejpal Singh, Soumyajit Mukherjee, Seema Singh
Summary: The tectonics of ancient foreland basins are important for both applied and theoretical geosciences. Through geomorphic and paleostress analysis, the principal stress directions during the Himalayan orogeny were reconstructed, and three deformation phases were determined. The NE-directed compression led to the uplift of the Himalayas and the formation of the present-day topography.
INTERNATIONAL JOURNAL OF EARTH SCIENCES
(2022)
Article
Geosciences, Multidisciplinary
Rodrigo Vinagre Cintra Da Costa, Rudolph Allard Johannes Trouw, Andre Ribeiro, Julio Cezar Mendes, Felipe Tavares, Felipe Nepomuceno, Debora Barros Nascimento, Marcos Ferreira Fontainha, Patricia Duffles, Camilo Correia Trouw
Summary: This paper presents new U-Pb zircon data and geothermobarometric estimates to reconstruct the metamorphic evolution in the Southern Brasilia Orogen. Two metamorphic events, pre-collisional metamorphism (M1) and main collisional metamorphism (M2), are identified. M1 is related to the formation of the Socorro-Guaxupe and Embu magmatic arc, while M2 is associated with the collision and accretion of the nappe stack. Understanding these metamorphic events is crucial for understanding the mountain-building process in the region.
JOURNAL OF SOUTH AMERICAN EARTH SCIENCES
(2023)
Article
Geography, Physical
Dongliang Ning, Enlou Zhang, James Shulmeister, Jie Chang, Weiwei Sun, Zhenyu Ni
QUATERNARY RESEARCH
(2020)
Article
Geography, Physical
Jie Chang, Enlou Zhang, Luo Wang, Enfeng Liu, Xiaoqiang Yang, James Shulmeister
Editorial Material
Geography, Physical
I. Tonguc Uysal, Uwe Ring, Ezgi Unal-Imer, Galip Yuce, James Shulmeister, Ali Imer, Francesco Italiano, Jian-xin Zhao
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2020)
Article
Geography, Physical
D. Ellerton, T. Rittenour, J. Shulmeister, A. Gontz, K. J. Welsh, N. Patton
Article
Geosciences, Multidisciplinary
Bianca Burke, Adrian Slee, Peter D. McIntosh, Harald Hofmann, James Shulmeister
JOURNAL OF CAVE AND KARST STUDIES
(2020)
Article
Environmental Sciences
Allen Gontz, Adrian McCallum, Daniel Ellerton, Nicholas Patton, James Shulmeister
JOURNAL OF COASTAL RESEARCH
(2020)
Article
Biodiversity Conservation
Rupesh Patil, Yongping Wei, David Pullar, Jamie Shulmeister
ECOLOGICAL INDICATORS
(2020)
Article
Ecology
S. Anna Florin, Patrick Roberts, Ben Marwick, Nicholas R. Patton, James Shulmeister, Catherine E. Lovelock, Linda A. Barry, Quan Hua, May Nango, Djaykuk Djandjomerr, Richard Fullagar, Lynley A. Wallis, Andrew S. Fairbairn, Chris Clarkson
Summary: Stable carbon isotope analysis of modern and archaeological pandanus nutshell from Australia's oldest known archaeological site of Madjedbebe reveals precipitation fluctuations over the last 65,000 years, with the lowest effective annual precipitation recorded at the present time. Periods of lower precipitation correspond with peaks in exotic stone raw materials and artifact discard at the site, suggesting increased group mobility and intensified use of the region during drier periods.
NATURE ECOLOGY & EVOLUTION
(2021)
Review
Environmental Sciences
Amanda Hansson, Paul Dargusch, Jamie Shulmeister
Summary: Treelines are shifting to higher elevations and latitudes due to climate change, expanding forest cover in many areas. Local treeline migration depends on growing conditions and seedling establishment. Physical form and speed of treeline migrations impact ecosystem carbon storage.
JOURNAL OF MOUNTAIN SCIENCE
(2021)
Article
Environmental Sciences
Rupesh Patil, Yongping Wei, David Pullar, James Shulmeister
Summary: This study found that in the Goulburn-Broken catchment in Australia, pollutant and nutrient concentrations increased while dissolved oxygen and nitrogen levels decreased. Simulations also showed that climate change, river regulation, and flow diversion would impact water quality indicators.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Geography, Physical
Nicholas R. Patton, James Shulmeister, Tammy M. Rittenour, Peter Almond, Daniel Ellerton, Talitha Santini
Summary: The study presents a novel application of landscape smoothing with time to generate a detailed chronology of dune fields. By establishing a relationship model between surface roughness and dune emplacement timing, and utilizing a digital elevation model, the ages of dunes can be predicted. The study shows that dune fields went through four major phases of dune emplacement.
EARTH SURFACE PROCESSES AND LANDFORMS
(2022)
Article
Environmental Sciences
Rupesh Patil, Yongping Wei, David Pullar, James Shulmeister
Summary: This study analyzed the sensitivity of streamflow patterns to flow regulation and climate change in the Goulburn-Broken catchment in Victoria, Australia. Low and medium flows increased by 26%, while high and overbank flows decreased by 31% during the period between 1977 and 2018. The timing of flow metrics would be dominated by variation in rainfall, while current river regulation and flow diversion practices would dominate future change in magnitude, duration, and frequency of the streamflow.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Forestry
Amanda Hansson, Wen-Hsi Yang, Paul Dargusch, James Shulmeister
Summary: Numerous studies have shown that treelines are moving to higher elevations and latitudes, which is attributed to climate change. It is important to predict future treeline movements to understand their impacts on high-alpine ecosystems and potential climatic feedback mechanisms. Recent findings reveal that the rate of temperature change during autumn, particularly in October, is a significant predictor of treeline migration.
CURRENT FORESTRY REPORTS
(2023)
Article
Geosciences, Multidisciplinary
Weiwei Sun, Enlou Zhang, Jie Chang, James Shulmeister, Michael Bird, Cheng Zhao, Qingfeng Jiang, Ji Shen
CLIMATE OF THE PAST
(2020)
Article
Geosciences, Multidisciplinary
Ezgi Unal Imer, Ibrahim Tonguc Uysal, Emma St Pierre, Jian-Xin Zhao, James Shulmeister
TURKISH JOURNAL OF EARTH SCIENCES
(2020)
