Article
Geosciences, Multidisciplinary
Shuang Yuan, Qiang Xu, Kuanyao Zhao, Xuan Wang, Qi Zhou, Wanlin Chen, Chuanhao Pu, Huajin Li, Pinglang Kou
Summary: This study used mathematical morphology and remote sensing images to interpret the evolutionary process of loess tablelands, loess ridges, and loess hills in the Heshui County watershed. By analyzing the geomorphic characteristics and parameters, the study established classification criteria and quantified the evolutionary pattern of LT-LR-LH landforms. The findings provide new insights into the evolution of loess landforms and the disappearance of loess tablelands.
Article
Geosciences, Multidisciplinary
Miles M. Reed, Ken L. Ferrier, J. Taylor Perron
Summary: In this study, a landscape evolution model was used to investigate the response of terrestrial cosmogenic nuclides (TCN) in transient landscapes. The results showed that accounting for soil chemical erosion is necessary for accurately calculating denudation rates (Dinf), and the responses of Dinf to tectonic and climatic perturbations differ, indicating that the spatial and temporal patterns of Dinf are signatures of perturbation type and magnitude.
JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE
(2023)
Article
Geochemistry & Geophysics
Anthony Dosseto, Alex Hannan-Joyner, Eron Raines, Eric Gayer, Laurent Michon
Summary: Chemical weathering of basaltic rocks on tropical, basaltic islands is mainly influenced by stable landforms, where pyroxenes and feldspars are progressively replaced by gibbsite and halloysite. The extent of weathering depends on the parent material composition, with complete loss of primary minerals and soluble elements observed in soils developing for up to two million years. However, chemical erosion and CO2 consumption fluxes on Reunion Island suggest that stable landforms play a limited role in chemical weathering, compared to hydrothermal alteration and weathering in rapidly eroding regions. Uranium-series isotopes in weathering profiles validate weathering ages and soil production rates, with production rates decreasing with depth and time elapsed since onset of weathering.
GEOCHIMICA ET COSMOCHIMICA ACTA
(2022)
Article
Geochemistry & Geophysics
Xiting Long, Heping Xie, Xinping Deng, Xiangyue Wen, Jian Ou, Renwen Ou, Jun Wang, Fei Liu
Summary: The experiments on geothermal resources in Rucheng County showed that the F3 fault zone and F1 hanging wall secondary fault are the main thermal control structures. The geothermal water in this area has high pH and EC values, but low corrosiveness and calcium carbonate scaling, indicating promising application prospects.
Review
Geosciences, Multidisciplinary
Charles M. Shobe, Jens M. Turowski, Ron Nativ, Rachel C. Glade, Georgina L. Bennett, Benedetta Dini
Summary: The distribution and movement of boulders play a crucial role in shaping landscapes, influencing hillslope processes, river channel shapes, and geomorphic hazards. Understanding boulder dynamics is essential for studying landscape evolution and self-organization.
EARTH-SCIENCE REVIEWS
(2021)
Article
Environmental Sciences
Nele Delbecque, Eric Van Ranst, Stefaan Dondeyne, Abdul M. Mouazen, Pieter Vermeir, Ann Verdoodt
Summary: This study investigates the differences in anthropogenic, lithogenic and pedological contributions in urban soils using volume-specific magnetic susceptibility and geochemical soil properties. The results show that volume-specific magnetic susceptibility can predict heavy metal enrichment and provide insights into the nature of anthropogenic influence, particle size distribution, lithology, and pedology in urban soils.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Agronomy
Timothy J. Daniel, John Richendrfer, Ronald Falta, Lawrence Murdoch, Henry Lin, Christophe J. G. Darnault
Summary: The objective of this study was to identify and relate any bedrock fracture traces and surface depressions to any surficial or geomorphologic processes currently underway as a result of irrigation. The study found that fractures in the Living Filter area have a predominant NE-SW trend, which correlates with the location of surface depressions. The study also observed a decrease in land area in the agricultural portion and an increase in land area in the forested portion of the site. These findings enhance the understanding of morphologic characteristics of forested and agricultural depressions in karst topography and can be applied to similar sites with bedrock fractures.
AGRICULTURAL WATER MANAGEMENT
(2023)
Article
Geosciences, Multidisciplinary
Gauri Dole, Sumit Das, Vivek S. Kale
Summary: The geomorphology of the Deccan Volcanic Province is influenced by the eruption of flood basalts and the collision between the Indian and Asian plates. The interpretation of this terrain requires re-examination and the Deccan landscape reflects the reactivation of ancient tectonic zones.
EARTH-SCIENCE REVIEWS
(2022)
Article
Geosciences, Multidisciplinary
David G. Litwin, Gregory E. Tucker, Katherine R. Barnhart, Ciaran J. Harman
Summary: This study developed a new model to explore how runoff generation affects long-term catchment evolution, focusing on hydrologic processes dominating in humid climates. The results showed the interplay between surface and subsurface water, with implications on landscape evolution and runoff generation.
JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE
(2022)
Article
Environmental Studies
Wen-Shu Huang, Chi-Shu Liang, Heng Tsai, Zeng-Yi Hseu, Shiuh-Tsuen Huang
Summary: The pedogenetic features of the midstream soils of the Zoushui River in central Taiwan were analyzed. Mixed sediments from the river and its tributaries were identified as the parental materials of the soils. A soil chronosequence of Inceptisols, Ultisols, and Oxisols over the Pleistocene timescale was proposed. The study also found a significant correlation between the weighted profile development index values and soil age.
Article
Limnology
Zezheng Liu, Olivier Gourgue, Sergio Fagherazzi
Summary: This study compared the geometric properties of tidal channel networks in salt marshes along the coasts of the United States and China, finding significant differences based on vegetation dominance. Physical parameters were better at explaining these differences, with mean marsh elevation and tidal range as key variables. Biotic parameters had a weaker effect on the network geometry, indicating the importance of physical processes in shaping tidal channel networks.
LIMNOLOGY AND OCEANOGRAPHY
(2022)
Article
Environmental Sciences
Xudong Wei, Jin Wang, Jingye She, Jing Sun, Juan Liu, Yuxuan Wang, Xiao Yang, Qi'en Ouyang, Yuyang Lin, Tangfu Xiao, Daniel C. W. Tsang
Summary: Thallium (Tl) and arsenic (As) are heavily enriched in soils, mainly inherited from the weathering of mine tailing piles upstream, with approximately 50% of Tl occurring in geochemically mobile fractions in the soil profile. Iron oxides play a critical role in the oxidation and adsorption of Tl, facilitating its enrichment in the reducible fraction.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Song Ding, Dong-Xing Guan, Zhi-Hua Dai, Jing Su, H. Henry Teng, Junfeng Ji, Yizhang Liu, Zhongfang Yang, Lena Q. Ma
Summary: The study compared the bioaccessibility of nickel in geochemical background soils and anthropogenic contaminated soils. It found that the bioaccessibility of nickel was lower in geochemical background soils, which may be related to the higher residual fractionation of nickel in these soils. In addition, the exchangeable nickel and organic carbon content in soils were found to be related to the bioaccessibility of nickel.
ENVIRONMENTAL POLLUTION
(2022)
Article
Psychology, Multidisciplinary
Yago Luksevicius Moraes, Jaroslava Varella Valentova, Marco Antonio Correa Varella
Summary: Through the concept of Sexual Selection, Darwin provided a way to analyze individual differences within an evolutionary perspective. Sexual Selection is often used to investigate the origins of play and other phenomena like sports and arts, which rely on shared psychological processes and playfulness.
FRONTIERS IN PSYCHOLOGY
(2022)
Article
Engineering, Environmental
Jamey N. N. Cooper, Kevin E. E. Nick
Summary: Podoconiosis is a disease that causes swelling and disfiguration of the lower legs found in several developing countries where shoes are not regularly worn. Soil samples collected from podoconiosis-associated and non-podoconiosis associated towns were analyzed for color, particle size, mineralogy, and geochemistry. The results showed that podoconiosis-associated soils were more highly weathered and contained higher levels of kaolinite and gibbsite. Color was also found to be a useful indicator for identifying soils at greater risk for inducing podoconiosis.
ENVIRONMENTAL GEOCHEMISTRY AND HEALTH
(2023)
Article
Geochemistry & Geophysics
Michael Pimentel-Galvan, Kimberly V. Lau, Katharine Maher, Tapan Mukerji, Daniel J. Lehrmann, Demir Altiner, Jonathan L. Payne
Summary: This study investigates the uranium cycle across the Permian-Triassic boundary and the early Triassic using the Monte Carlo method and principal component analysis. The best-fitting models suggest a significant increase in seafloor anoxia during the Permian/Triassic transition, lasting from 20 kyr to 1.2 Myr. The extent and duration of anoxia show an inverse relationship, and there is no indication of complete re-oxygenation during the study interval.
GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS
(2022)
Article
Archaeology
Seth Quintus, Dolly Autufuga, Stephanie Day, Jennifer Huebert, Noa Kekuewa Lincoln, Nolita Motu, Kyungsoo Yoo
Summary: Successful settlement on Polynesian islands required altering the environment, which led to extensive cultural landscapes. This study in American Samoa's Ta'u Island suggests that variability in slope and soil fertility drove archaeological patterns. Early settlements were dispersed in optimal locations, while later settlements showed signs of community integration and a shift towards a despotic distribution.
JOURNAL OF FIELD ARCHAEOLOGY
(2022)
Article
Environmental Sciences
Sara C. Keen, Adrian A. Wackett, Jane K. Willenbring, Kyungsoo Yoo, Hanna Jonsson, Travis Clow, Jonatan Klaminder
Summary: Studies have shown that analyzing soil soundscapes can indirectly monitor soil ecosystem health and track earthworm activities. Earthworms alter the soil soundscape by indirectly changing the soil matrix, with different vegetation types having varying acoustic impacts on earthworms.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Anthropology
Seth Quintus, Peter Mills, Jasper Konter, Stephanie Day, Darr Gilreath, Noa Kekuewa Lincoln, Steven Lundblad, Denys Vonderhaar, Kyungsoo Yoo
Summary: This study examines trends in intra-archipelago exchange in the Samoan archipelago, specifically the Manu'a group, using geochemical and limited technological analysis of a lithic assemblage. The results indicate the presence of material from multiple basalt sources, including sources outside the Manu'a group. The nonlocal material was used differently than local material, but there is no evidence to suggest differential distribution or control. This suggests decentralized exchange and the use of imported materials as common pool resources to support community resiliency and sustainability.
ARCHAEOLOGICAL AND ANTHROPOLOGICAL SCIENCES
(2022)
Article
Geochemistry & Geophysics
Anna L. Harrison, Jacques Schott, Eric H. Oelkers, Katharine Maher, Vasileios Mavromatis
Summary: The isotopic composition of carbonate minerals provides a record of historical geochemical and environmental conditions. This study found that rapid exchange of C and O isotopes can occur within a short time under chemical equilibrium conditions in calcite. However, the long-term persistence of this process at geological time scales is difficult to predict.
GEOCHIMICA ET COSMOCHIMICA ACTA
(2022)
Article
Soil Science
Jeonghwan Jang, Xianyi Xiong, Chang Liu, Kyungsoo Yoo, Satoshi Ishii
Summary: This study found that invasive earthworms have an impact on soil microbiomes and ecosystem functioning, particularly in nitrogen cycling. The degree of earthworm invasion and soil depth influenced the structures of microbiomes and the abundance of functional genes. In soils with minimal invasion, genes related to nitrification were more abundant, while in heavily invaded soils, genes related to denitrification and nitrogen fixation were more abundant.
SOIL BIOLOGY & BIOCHEMISTRY
(2022)
Article
Geochemistry & Geophysics
Tristan Babey, Kristin Boye, Bradley Tolar, Maya Engel, Vincent Noel, Zach Perzan, Naresh Kumar, Christopher A. Francis, John R. Bargar, Kate Maher
Summary: Sedimentary interfaces in alluvial aquifers influence the water quality and drive the development of biogeochemical interfaces. Organic-rich lenses play a key role in the cycling of carbon, iron, and sulfur, and can stimulate downstream biogeochemical processes.
GEOCHIMICA ET COSMOCHIMICA ACTA
(2022)
Article
Geography, Physical
Luobin Yan, Mikael Attal, Simon M. Mudd, Ke Zhang, Yuntao Tian
Summary: This study investigates the geomorphic response and surface evolution processes in the eastern Tibetan region through quantifying topographic metrics. The findings reveal significant landscape transience and river incision in the Tongtianhe River basin, ruling out regional uplift and local faulting as primary factors contributing to the observed changes.
Article
Multidisciplinary Sciences
Callum M. Strong, Simon M. Mudd
Summary: Rivers form characteristic branching patterns as they drain landscapes. The sensitivity of river junction angles to climate aridity can be explained by the principle of optimal energy expenditure minimization in river networks. The geometry of real junctions is strongly controlled by the discharge ratio of the confluent channels.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Article
Environmental Sciences
Kate Maher, Friedhelm von Blanckenburg
Summary: The Earth's biosphere has a significant impact on regolith evolution and chemical weathering rates, but ecosystems are also efficient at retaining and recycling nutrients. The balance between nutrient recycling and new nutrient input is crucial for plant growth. Factors such as water flow, regolith thickness, mineral dissolution rates, and nutrient storage influence the regolith nutrient inventory and, consequently, plant productivity. Biotic drivers of weathering, such as mineral dissolution, have a limited effect on plant growth at typical erosion rates.
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2023)
Article
Soil Science
Dolly Autufuga, Seth Quintus, Kyungsoo Yoo, Stephanie Day, Jennifer Huebert, Jonathan Deenik, Noa Kekuewa Lincoln
Summary: Soils and agriculture are closely related, especially in the Pacific islands. This study analyzed soil chemistry and vegetation patterns in the Manu'a islands of American Samoa, and found that soil fertility indicators had some application to the distribution of traditional agriculture. Agroforestry and arboriculture were key components of past agricultural practices.
Article
Geosciences, Multidisciplinary
Fiona J. J. Clubb, Simon M. M. Mudd, Taylor F. F. Schildgen, Peter A. A. van der Beek, Rahul Devrani, Hugh D. D. Sinclair
Summary: The width of Himalayan valleys is mainly controlled by long-term tectonic exhumation rather than water discharge. The rivers in the Himalayas transport about a gigaton of sediment to the ocean basins annually. Valley storage plays a crucial role in buffering climatic and tectonic signals, however, the controls on valley location and geometry are unknown.
Article
Geosciences, Multidisciplinary
Zach Perzan, Gordon Osterman, Kate Maher
Summary: Managed aquifer recharge (MAR) is crucial in water-stressed regions to combat groundwater depletion. Our simulation study reveals that coarse-grained facies facilitate rapid infiltration, while fine-grained facies limit saturated-zone recharge efficiency. Geologic parameters have a significant impact on MAR effectiveness, and future research should focus on characterizing fine-grained sediments.
HYDROLOGY AND EARTH SYSTEM SCIENCES
(2023)
Article
Geosciences, Multidisciplinary
Matthew J. Winnick, Jennifer L. Druhan, Kate Maher
Summary: Lithium isotopes are a powerful tool for studying the response of global weathering to climate change. This study examines the relationship between lithium isotopes, concentration, and weathering regime, and proposes that rapid weathering of soluble lithium-rich minerals and geothermal lithium sources can explain observed patterns.
AMERICAN JOURNAL OF SCIENCE
(2022)
Article
Geography, Physical
Fiona J. Clubb, Eliot F. Weir, Simon M. Mudd
Summary: Mountainous landscapes with alluviated valleys have significant impacts on ecosystem diversity and human populations. This study proposes a new method for measuring the width of valley floors in mountain landscapes using digital elevation models. By comparing the results with independent fluvial deposit maps, the accuracy of the method is demonstrated. It is also found that the width of the valley floor is related to the drainage area, suggesting that both valley wall undercutting and erosion drive the evolution of valley floor width. This method has the potential to serve as a network-scale metric for lateral fluvial response to external forcing.
EARTH SURFACE DYNAMICS
(2022)