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Advanced Research on Marine Geology and Sedimentology, 2nd Edition

A special issue of Water (ISSN 2073-4441). This special issue belongs to the section "Hydrogeology".

Deadline for manuscript submissions: 20 October 2026 | Viewed by 839

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Guest Editor
State Key Laboratory of Intelligent Construction and Healthy Operation and Maintenance of Deep Underground Engineering (Research Center for Deep Ocean Science and Underwater Engineering), China University of Mining and Technology, Xuzhou 221116, China
Interests: sediment; internal solitary wave; seafloor; suspension; transport; submarine canyon; bottom boundary layer; nepheloid layer
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Special Issue Information

Dear Colleagues,

The ocean floor is a vast, uncharted territory, rich with geological and sedimentological secrets waiting to be uncovered. Advanced research in marine geology and sedimentology is pivotal for understanding the Earth's history, climate change, and the formation of natural resources.

Utilizing cutting-edge technology, such as deep-sea submersibles, autonomous underwater vehicles, and advanced sonar systems, scientists delve into the abyss to map the seafloor, study tectonic plate movements, and collect samples of sediment and rock. These studies provide insights into the geological processes that shape our planet, including the formation of underwater volcanoes, the shifting of oceanic trenches, and the creation of abyssal plains.

Sedimentology, the study of sediments, complements this research by examining the layers of sediment on the ocean floor. These layers act as a historical archive, recording changes in sea level, ocean currents, and past climates. By analyzing the composition and structure of these sediments, researchers can reconstruct ancient environments and track the evolution of marine ecosystems.

In conclusion, advanced research on marine geology and sedimentology is crucial for expanding our understanding of the Earth's systems and for guiding the sustainable use of our oceanic resources. Understanding the geological structure of the ocean floor can aid in the search for mineral and oil resources, while knowledge of sedimentary processes can inform strategies for environmental conservation and disaster mitigation.

Dr. Zhuangcai Tian
Guest Editor

Manuscript Submission Information

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Keywords

  • sediment
  • suspension
  • transport
  • bottom boundary layer
  • nepheloid layer

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Published Papers (1 paper)

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Research

30 pages, 17647 KB  
Article
Seasonal Comparison of Groundwater Irrigation Suitability in the Coastal Zone of Northeastern Laizhou Bay Under the Influence of Seawater Intrusion
by Meiye Wu, Zitong Chai, Yushan Fu, Fang Song, Minxing Dong, Chen Qi, Bin Li, Tengfei Fu and Yu Wang
Water 2026, 18(9), 1058; https://doi.org/10.3390/w18091058 - 29 Apr 2026
Viewed by 471
Abstract
Coastal zones are sensitive areas where marine and terrestrial systems interact. Seawater intrusion, a typical coastal geological hazard, poses a serious threat to groundwater resources. This study takes the northeastern coastal zone of Laizhou Bay, a representative area affected by seawater intrusion in [...] Read more.
Coastal zones are sensitive areas where marine and terrestrial systems interact. Seawater intrusion, a typical coastal geological hazard, poses a serious threat to groundwater resources. This study takes the northeastern coastal zone of Laizhou Bay, a representative area affected by seawater intrusion in China and relying on groundwater for agricultural irrigation, as the research area and integrates hydrochemical analysis, irrigation hazards assessment, and a hybrid-weighted Irrigation Water Quality Index (IRWQI) to reveal seasonal changes in groundwater irrigation suitability. Results show that (1) groundwater hydrochemical facies exhibits a shift from HCO3-Ca type in the rainy season to Cl-Ca·Mg type in the dry season, with TDS and Cl increasing coastward. The Huangshui River estuary displays a striking seasonal reversal: minimally affected during the rainy season, it becomes moderately severely intruded in the dry season, owing to the contrast between the perennial Huangshui River and adjacent ephemeral streams. (2) Salinity hazard (EC, PS) is the most immediate seawater intrusion consequence, with dry-season PS expanding inland and rendering estuarine groundwater unsuitable for irrigation. Although sodium and magnesium hazards remain below critical thresholds, strong Cl–Na+ and Cl–Mg2+ correlations in the dry season signal emerging risks. Bicarbonate hazard declines via conservative mixing with Ca·Mg-rich seawater, masking other hazards. Permeability hazard exhibits moderate seasonal deterioration. (3) Spatially, the IRWQI values are systematically lower during the dry season, with contiguous severe-restriction zones emerging along the Huangshui, Yongwen, and Jiehe River estuaries. These findings indicate that under reduced recharge, seawater intrusion dominates groundwater irrigation quality, triggering a seasonal tipping point. The study provides a scientific basis for adaptive coastal groundwater management. Full article
(This article belongs to the Special Issue Advanced Research on Marine Geology and Sedimentology, 2nd Edition)
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