Article
Geosciences, Multidisciplinary
Hoi-Soo Jung, Jun-Ho Lee, Joo Bong Jeong, Han Jun Woo
Summary: Discriminating shelf sediment provenances faces challenges such as grain size effect on metal concentrations, presence of REE-rich heavy minerals, and inconsistent compositional differences. This study successfully quantitatively distinguished the provenances of the southwestern Cheju Island mud deposit in the northern East China Sea using major element ratios, and determined the contributions of the Huanghe and Changjiang rivers to the sediments. The SiO2/Al2O3 and Fe2O3/Al2O3 ratios were reliable tracers for provenance differentiation, and the HH river contributed approximately 80% to the sediment budget while the CJ river contributed about 20%.
JOURNAL OF ASIAN EARTH SCIENCES
(2023)
Review
Geosciences, Multidisciplinary
Lucas Porz, Wenyan Zhang, Till J. J. Hanebuth, Corinna Schrum
Summary: Mud depocenters (MDCs) are major sinks for fine-grained terrigenous material, carbon, and contaminants on modern continental shelves. Several physical processes control MDC development, including bottom transport of suspended mud, interaction with density gradients, and resuspension and dispersal by internal waves. Three conceptual paradigms for MDC development have been identified, with case studies often emphasizing processes associated with one of the paradigms.
Article
Geosciences, Multidisciplinary
Jin-Peng Luan, Gideon Rosenbaum, Jian-Fei Fu
Summary: The uplift history of the northeastern Asian continental margin has been investigated using various methods, including sandstone petrology, whole-rock geochemistry, U-Pb geochronology and Hf isotopy of detrital zircons. The results indicate that the margin experienced at least three stages of uplift, driven by subduction initiation, plate motion change, and slab dip angle shallowing. The findings provide valuable insights into the uplift processes and provenance of the basin.
GEOLOGICAL MAGAZINE
(2022)
Article
Geochemistry & Geophysics
Manuela de Oliveira Carvalho, Claudio de Morisson Valeriano, Renato Rodriguez Cabral Ramos, Monica Heilbron, Carla Cristine Aguiar Neto, Gabriel Paravidini, Luiz Guilherme do Eirado Silva
Summary: The study found that the sedimentary rocks in the Resende Basin are mainly influenced by current weathering conditions and cannot be used for source area weathering interpretations. Similar trace and rare earth element composition in sandstones and mudstones imply low mixing of sediments, sourced from felsic and intermediate igneous sources with a subordinate mafic component, enriched in heavy minerals like Ti, Zr, Hf, and Y.
Article
Environmental Sciences
Changlin Chen, Guihua Wang, Yunwei Yan, Fengyun Luo
Summary: The projected sea level rise in the China Seas for the 21st century is expected to be similar to the global average, with mass contributions being the main factor driving the increase. Local steric adjustments play a minor role in the projected sea level rise.
ENVIRONMENTAL RESEARCH LETTERS
(2021)
Article
Geosciences, Multidisciplinary
A. N. C. Dias, F. Guadagnin, C. V. G. T. Rangel, F. Chemale, T. R. P. Oliveira, C. A. Moura, V. Q. Pereira, J. S. E. Alves
Summary: The Barreiras Formation in the Brazilian continental margin preserves continental-to-shallow-water marine sequences deposited during the Paleogene-Neogene periods, with sediments derived from rocks formed or reworked during the assembly of the Gondwana supercontinent. The detrital zircon age distribution shows a complex thermal evolution in the source areas, with U-Pb ages primarily late Neoproterozoic and zircon fission-track ages ranging from 429 to 127 Ma, correlating to various geological events in the region.
INTERNATIONAL JOURNAL OF EARTH SCIENCES
(2021)
Article
Environmental Sciences
Gang Li, Li Miao, Wen Yan
Summary: This study examines the evolution history and response of marine mud deposits on the north-western shelf of the South China Sea to various factors, such as river system, sea-level change, monsoon variations, and human activities. The results reveal differences in the evolution of mud deposits in shallow waters and on the middle shelf, as well as the influence of sediment fluxes, winter monsoons, and human activities on mud deposition.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Geosciences, Multidisciplinary
Bolin Zhang, Suping Yao, Anlin Ma, Wenxuan Hu, Biao Liu, Wenguang Yang
Summary: This study analyzes two sedimentary sections from the Late Paleozoic of South China, examining their tectonic and depositional environments and providing new insights into the Late Paleozoic tectonics of the region. The results indicate changes in sediment provenance and depositional environments, which may be related to the evolution and tectonic transitions of the continental arc.
Article
Geology
Qi Zhou, Chonglong Wu, Xiangyun Hu, Bingnan Yang, Xialin Zhang, Yuansheng Du, Kai Xu, Liangjun Yuan, Jincai Ni, Dan Hu, Sui Zhang, Xiaoqing Shen, Yu Liu, Xingyou Xie, Jiajun Wang
Summary: This study discovered that the intersections of rift basins in northeastern Guizhou province, China, are likely ore-forming structures that transport manganese-bearing materials. Additionally, a deep-seated diapir channel beneath the mining district was identified, which could contribute to the deposition of manganese ore deposits. This research provides visualization of a potential ore-guiding structure and presents a new metallogenic model for manganese ore deposits.
ORE GEOLOGY REVIEWS
(2022)
Article
Humanities, Multidisciplinary
Yiheng Xian, Yun Liang, Chun Yu, Liping Yang, Yanwang Wu
Summary: This study evaluates the potential of using sedimentary environment sensitive elements to distinguish between turquoise deposits in China, and finds that this approach, when combined with aluminum concentration, can effectively discriminate the sources of turquoise.
Article
Geosciences, Multidisciplinary
Youliang Feng, Caineng Zou, Jianzhong Li, Changsong Lin, Hongjun Wang, Shu Jiang, Zhi Yang, Shun Zhang, Xiuli Fu
Summary: Research on sediment gravity-flow systems in the Songliao Basin is valuable for understanding sedimentary processes, patterns, and predicting the presence of good sandstone reservoirs. The study identified deep lake channel-levee-lobe and slope fan deposits within six depositional sequences spanning from the Turonian to early Coniacian upper part of the fourth member of the Quantou Formation to the early Campanian second member of the Nenjiang Formation.
MARINE AND PETROLEUM GEOLOGY
(2021)
Article
Geosciences, Multidisciplinary
Yingli Zhang, Zongqi Wang, Tao Wang
Summary: This study provides evidence for understanding the provenance and tectonic evolution of the Shugouzi Formation, with the main source rocks being continental island arc-related felsic rocks and the presence of a remnant arc in the Early Devonian.
ACTA GEOLOGICA SINICA-ENGLISH EDITION
(2022)
Article
Geosciences, Multidisciplinary
Zhengcai Zhang, Aimin Liang, Caixia Zhang, Zhibao Dong
Summary: By analyzing the geochemical characteristics, it was found that the main sand sources for the Badain Jaran Desert include not only the Qilian Mountains and Altai Mountains, but also the Gobi surface, providing about 69% of the sediment for the desert's dunes. In addition to wind transport, sand was also transported through hydrodynamic processes into the Heihe River.
Article
Geography, Physical
Yongda Wang, Shiling Yang, Zhongli Ding
Summary: The loess deposits in Shandong Province are likely mainly sourced from the Yellow River system in the North China Plain and sediments on the adjacent continental shelf. Unlike the Chinese Loess Plateau, the Shandong loess does not show consistent patterns of coarse grain size and low magnetic susceptibility values, possibly due to frequent changes in dust sources caused by diversions of the Yellow River and local hydroclimatic conditions.
QUATERNARY RESEARCH
(2021)
Article
Geochemistry & Geophysics
Hegen Ouyang, John Caulfield, Jingwen Mao, Ruizhong Hu
Summary: The formation of porphyry Mo deposits is influenced by factors such as magma oxygen fugacity, water content, and emplacement depth. The geometry of the intrusions, with pre-mineralization intrusions occurring as flat bodies and syn-mineralization intrusions commonly developing as small stocks or dikes, is also crucial. Fluid processes in the shallow crust play a pivotal role in the formation of porphyry Mo deposits.
AMERICAN MINERALOGIST
(2022)
Article
Environmental Sciences
Xin Ni, Guangming Zhao, Siyuan Ye, Guangxue Li, Hongming Yuan, Lei He, Dapeng Su, Xigui Ding, Liujuan Xie, Shaofeng Pei, Edward A. Laws
Summary: The study used positive matrix factorization (PMF) and a GeoDetector model to assess the sources and ecological risks of heavy metal contamination in the Yancheng Coastal Wetland. Wetland environments were found to have a strong ability to sequester heavy metals, with parent soil material, agriculture, and industrial pollutants identified as the main sources. The ecological harm of heavy metal exposure was minimal, except for Cd and Hg, which were primarily caused by vehicle emissions.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Geography, Physical
Mengna Chen, Da-Wei Li, Li Li, Gui 'e Jin, Guangxue Li, Jishang Xu, Meixun Zhao
Summary: In this study, sediment core analysis was used to reconstruct phytoplankton productivity and community structure changes over the past 15.8 kyr in the Okinawa Trough. The results showed that the lipid biomarker contents in the sediment were higher during increased precipitation intervals and lower during decreased precipitation intervals. It was proposed that precipitation-induced terrestrial nutrient supply controlled phytoplankton growth, which was influenced by the East Asian summer monsoon change and the Intertropical Convergence Zone migration.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2023)
Article
Environmental Sciences
Shidong Liu, Jishang Xu, Lulu Qiao, Guangxue Li, Jinghao Shi, Dong Ding, Di Yu, Xue Yang, Yufeng Pan, Siyu Liu, Xiaoshuang Fu
Summary: In this study, the basic features and spatial-temporal variations of short-lived mesoscale eddies (MEs) in the western Pacific warm pool (WPWP) were analyzed for the first time. It was found that short-lived cyclonic and anticyclonic eddies (CEs/AEs) were widespread in two eddy belts in the tropical region. The development of these eddy belts was related to the variations in sea surface temperature, mixed layer depth, and surface chlorophyll-a concentration in the WPWP. This new insight contributes to our current understanding of ocean eddies and highlights the importance of studying the impacts of short-lived MEs in future research.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Biotechnology & Applied Microbiology
Jianrong Huang, Adrian Mellage, Julian Pavon Garcia, David Gloeckler, Susanne Mahler, Martin Elsner, Natalia Jakus, Muammar Mansor, Hongchen Jiang, Andreas Kappler
Summary: Autotrophic nitrate-reducing Fe(II)-oxidizing microorganisms play a crucial role in carbon, iron, and nitrogen cycles. The study showed that the distribution of electrons from Fe(II) oxidation to either CO2 fixation or nitrate reduction deviated from the theoretical value. N2O was the main denitrification product. Furthermore, the Fe/N ratios influenced the distribution of electrons and the degree of cell-mineral interactions.
APPLIED AND ENVIRONMENTAL MICROBIOLOGY
(2023)
Article
Marine & Freshwater Biology
Mengqi Li, Nan Wang, Guangxue Li, Dehai Song, Yanzhen Gu, Xianwen Bao, Shidong Liu, Lei Zhang
Summary: Plume bulges were found in the Pearl River Estuary (PRE) during a flood-ebb tidal cycle, contrary to previous belief that estuaries with trumpet-like characteristics are less prone to form plume bulges. The formation dynamics and influences of discharge change on the plume bulge were revealed through simultaneous observations. The tidal plume was identified as the main component forming the plume bulge, rather than the surface-advected plume. Higher discharge enhanced the momentum and flux of the tidal plume, while lower discharge favored the formation of a surface-advected plume along the west bank.
ESTUARINE COASTAL AND SHELF SCIENCE
(2023)
Article
Geosciences, Multidisciplinary
Juan Wei, Yuanming Shu, Yang Liu, Rongxin Fang, Lulu Qiao, Dong Ding, Guangxue Li, Jingbin Liu
Summary: As an attractive technique for measuring water vapor, GNSS faces additional challenges in dynamic applications such as in the open sea. A new method of retrieving PWV based on GNSS multi-antenna PPP is presented, which incorporates the constraints of known baseline vector and common tropospheric delay. Shipborne dynamic experiment along the China coast demonstrates that the combination of these constraints achieves the best accuracy of 4.2 mm.
GEOPHYSICAL RESEARCH LETTERS
(2023)
Article
Geosciences, Multidisciplinary
Jibin Han, Hongchen Jiang, Jiubo Liu, Jianxin Xu, Wenhua Han, Haiyun Zhang
Summary: The Dong-Xi-Taijinaier Salt Lake (DXTSL) in the Qaidam Basin is a significant lithium reserve in China, but the origin of the lithium deposits in this region is still unknown. The study investigated the hydrochemistry and lithium isotopes of water and solid samples from the Nalenggele River catchment, along with rock leaching experiments. The results showed that hot springs in the upstream had high lithium content but low 87Li values, indicating them as an important lithium source. Additionally, leaching experiments revealed that volcanic rock weathering and hot springs are the main contributors to the lithium deposits in DXTSL.
JOURNAL OF EARTH SCIENCE
(2023)
Article
Geosciences, Multidisciplinary
Mingxian Han, Jianrong Huang, Jian Yang, Beichen Wang, Xiaoxi Sun, Hongchen Jiang
Summary: In this study, the assembly processes of prokaryotic and microeukaryotic communities in Qinghai Lake were investigated using Illumina sequencing and a null model. The results showed that both deterministic and stochastic processes played important roles in shaping the communities, with stochastic processes dominating (>70%). Prokaryotic communities were mainly governed by non-dominant processes (60.4%), while microeukaryotes were strongly influenced by non-dominant processes (68.9%). Nutrients were found to be the major factors affecting the community structures. This finding provides a better understanding of the assembly of prokaryotic and eukaryotic communities in saline lakes.
JOURNAL OF EARTH SCIENCE
(2023)
Editorial Material
Environmental Sciences
Zhikun Ren, Peizhen Zhang, Takashi Oguchi, Zhongtai He
Summary: The quantity and quality of remote sensing measurements of tectonic deformation have greatly improved over the past two decades, allowing us to better observe active geomorphological tectonic processes. High-precision and high-resolution topography is essential for quantitative studies of these processes. The development of computer visual science and the use of LiDAR, UAVs, and SfM photogrammetry have shown great potential in providing detailed and accurate topographic information.
Article
Oceanography
Xue Liu, Dong Ding, Guangxue Li, Yang Zhang, Shidong Liu, Nan Wang, Yi Zhong, Xue Yang, Yufeng Pan, Di Yu, Lei Zhang, Wenjing Xue
Summary: This paper collected sea surface temperature (SST) and sea surface suspended matter concentration data in the Bohai Sea from 1985 to 2018 using multiple NOAA satellites. The long-term variations of SST and SSC were studied, as well as their response to ENSO events. The results showed that both SST and SSC in the Bohai Sea have been increasing since 1985, with a higher rate than the global average, and the winter monsoon enhancement may be the main factor.
JOURNAL OF OCEAN UNIVERSITY OF CHINA
(2023)
Article
Computer Science, Information Systems
Yuan Wang, Xiaodan Shi, Takashi Oguchi
Summary: Archaeological predictive modeling (APM) is a crucial method for assessing the probability of archaeological sites in a region. This study investigates the impact of topographic and hydrological factors on archaeological sites in Japan and China and proposes a hybrid integration approach for APM. The results demonstrate that the AM_FR model has the most satisfactory performance in both study areas.
ISPRS INTERNATIONAL JOURNAL OF GEO-INFORMATION
(2023)
Article
Genetics & Heredity
Chengbo Zhang, Zhenghan Lian, Bo Xu, Qingzhong Shen, Mingwei Bao, Zunxi Huang, Hongchen Jiang, Wenjun Li
Summary: The gut microbiome of Asian elephants varies depending on their lifestyle, with the diversity decreasing as the degree of captivity increases. The presence of certain bacterial taxa also changes with lifestyle variations.
GENOMICS PROTEOMICS & BIOINFORMATICS
(2023)
Article
Engineering, Environmental
Donglei Zhang, Xiaolei Liu, Yuefei Ding, Juan Liu, Hongchen Jiang, Hailiang Dong
Summary: The air oxidation rate of Cr1-x Fe x (OH)(3) in dark and alkaline environments is influenced by pH, the Fe/Cr ratio, and the presence of siderophores. The role of oxygen in the dark and the effects of organic ligands on Cr(III) oxidation are often overlooked. This study investigates the kinetics of Cr1-x Fe x (OH)(3) oxidation by oxygen in the dark, considering pH, Fe/Cr ratio, and the presence of siderophores. Results show that pH and Fe/Cr ratio linearly affect the Cr(III) oxidation rate, while the siderophore promotes the formation of soluble organically complexed Cr(III) and enhances its oxidation by oxygen. This study emphasizes the importance of oxygen and its interaction with siderophores in the oxidation of Cr(III)-Fe(III) hydroxides.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Environmental Sciences
Jiji Li, Ji Huang, Yingying Ye, Jiayin Lu, Shuai Mao, Jie Bai, Pengzhi Qi, Baoying Guo, Chengkai Qu, Hongchen Jiang
Summary: In recent years, the concern over microplastics in environmental and health research has been increasing. Previous studies focused on the impact of microplastic ingestion on animals, but this study investigated the effects of surface contact with plastic filaments contaminated with PAHs on mussel pediveliger larvae. The results showed high mortalities in the larvae when exposed to the contaminated filaments, indicating the importance of considering the non-digestive tract route of exposure in mussel aquaculture.
Article
Environmental Sciences
Jin Wang, Zehao Liang, Ping Han, Guangxue Li, Feiyong Chen, Bing Liu
Summary: Due to rapid economic development and urban construction, as well as high exploitation of groundwater and geothermal resources, there is a potential threat of surface deformation in Jimo district. This study used SBAS-InSAR technology to analyze the distribution of surface deformation in the research area, identified the causations of surface deformation in different areas, and analyzed the causations of surface deformation in detail using PS-InSAR technology in the central urban area. The factors including surface loading, precipitation, and groundwater level were found to be the causations of surface deformation in different areas, with a lag time of approximately 4 months in the central urban area.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
