earth_science papers | Gist.Science

Multiscale Spatiotemporal Variability Characteristics and Dynamical Control Mechanisms of the Kuroshio Front in the Northwest Pacific

This study utilizes eddy-resolving reanalysis and satellite data (2002–2024) to quantify the multiscale spatiotemporal variability of the Kuroshio front in the Northwest Pacific, revealing that mesoscale eddies, seasonal cycles, and interannual–decadal signals drive distinct regional flow variations through dynamical mechanisms involving ENSO/PDO correlations, potential vorticity constraints, and energy cascades.

Xiang Wan, Lei Zhang, Maolin Li2026-08-20

📄 earth science

Aligning and Simplifying Chemical, Industrial Emission and Water Quality Regulations: Towards a Coherent EU Framework for Persistent, Mobile and Toxic (PMT) and very Persistent, very Mobile (vPvM) Substances

This paper argues that systematically integrating the new PMT/vPvM hazard classes from the CLP Regulation into the REACH, IED, and WFD frameworks is essential to overcome current regulatory fragmentation and establish a coherent, preventive EU strategy for protecting water resources from persistent, mobile, and toxic substances.

Lea C. van der Werff, Anne Deininger, Hans Peter H. Arp, Ivo Schliebner, Lise Oulès, Michael Neumann, Sarah E. Hale2026-08-20

📄 earth science

Astronomical calibration of the Jurassic–Cretaceous transition links cooling, calcification events, and Boreal–Tethyan carbon-cycle decoupling

By integrating astronomical tuning with multi-proxy stratigraphic data from Saudi Arabia, this study establishes a high-resolution chronology for the Jurassic–Cretaceous transition that links enhanced obliquity forcing to global cooling, calcification events, and the decoupling of Boreal and Tethyan carbon cycles.

JIHEDE HAJ MESSAOUD, Nicolas Thibault, Nicolas Boehm, Thomas Finkbeiner, Frans Van Buchem2026-08-20

📄 earth science

Reservoir conditions and its oil-controlling effect of Chang7-Chang9 in the Southern Zhouchang area, Ordos Basin

This study analyzes the reservoir characteristics of the Chang7-Chang9 tight sandstone in the Southern Zhouchang area of the Ordos Basin to identify key controlling factors, such as porosity and shale content, and establishes specific geological criteria for predicting tight oil enrichment and guiding exploration.

Binghua Sun, Jiang Bai, Xiaochun Zhao, Chenghui Li, Weitao Wu2026-08-20

📄 earth science

Application of Fractal Theory to Quantitative Characterization of Pore Structure in Deep Tight Sandstone

This study utilizes nuclear magnetic resonance (NMR) and fractal theory to quantitatively characterize the pore structure of deep tight sandstone, revealing significant differences in fluid mobility and structural complexity between bound and movable fluid pores to support reservoir evaluation and CO₂ storage potential prediction.

Shuhui Zhang, Peng Zhang, Yulu Fan2026-08-20

📄 earth science

Experimental Study on Radiated Bentonite: Implications for the Long-Term Geological Storage of High-Level Nuclear Waste

This experimental study demonstrates that bentonite maintains its mineralogical structure, swelling capacity, and barrier performance after ionizing radiation exposure, confirming its reliability as a buffer material for long-term high-level nuclear waste geological storage.

Jose Maria Ferdinand Calaunan, Jooyoung Im, J. Carlos Santamarina2026-08-20

📄 earth science

Inner-shelf mud belts as toggleable carbon‑nitrogen sources and sinks in tide-dominated coastal systems

This study reveals that inner-shelf mud belts in tide-dominated coastal systems function as active, toggleable sources of carbon and nitrogen rather than passive sinks, driven by tidal pumping that transports significant amounts of shelf-derived organic matter back into estuarine reaches.

Zhongbo Wang, Yalong Li, Xiangtong Huang, Chao Li, Shouye Yang2026-08-20

📄 earth science

Synergistic Convergence of Multiple Environmental Drivers Triggered a Multi‑taxa Regime Shift in the Yangtze Estuary

Based on two decades of multi-taxa and environmental data, this study reveals that the Yangtze Estuary underwent a fundamental regime shift around 2009–2010 driven not by a single factor but by the synergistic convergence of critical thresholds in dissolved oxygen, nutrients, and their ratios, providing essential reference points for ecosystem management.

Hao Huang, Danyun Ou, Yue Ni, Xiangwen Bao, Ming Chen, Weiwen Li, Lei Wang2026-08-20

📄 earth science

The 1994 Mw 7.8 Sanriku-Haruka-Oki Earthquake and Complex Recurrence on a Weakly Segmented Megathrust

By integrating teleseismic, strong-motion, and GNSS data, this study reveals that the 1994 Mw 7.8 Sanriku-Haruka-Oki earthquake involved two distinct NW–SE aligned slip patches separated by a low-slip zone influenced by pre-existing structural heterogeneities, suggesting that such weak segmentation governs the complex recurrence patterns of large megathrust earthquakes in the region.

Keisuke Yoshida, Takuya Nishimura, Ryota Hino, Yusaku Ohta, Naoki Uchida2026-08-20

📄 earth science

Climate warming shortens mast intervals by accelerating resource accumulation in the Northern Hemisphere

Based on an analysis of over 61,000 seed production records from 700 species across the Northern Hemisphere, this study demonstrates that climate warming shortens mast intervals by accelerating resource accumulation and lowering the cumulative resource thresholds required for reproductive events, with significant implications for forest regeneration and ecosystem dynamics.

Lei Chen, Ying Zhao, Hongshuang Gu, Anqi Yang, Haoyu Qiu, Lin Wang, Xinbo Wang, Andrew Hacket-Pain, Michal Bogdziewicz2026-08-20

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