Results 121 to 130 of about 58,838 (264)

Interesting seismology （18）：CT and NMR from medicine into seismology

地震科学进展, 2020
Rui Feng
doaj   +1 more source

Key New Evidence for the Hainan Mantle Plume Head: Ongoing Formation of a Large Igneous Province?

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 5, May 2026.
Abstract The process‐based surface magmatic expression of mantle plumes is typically a large igneous province (LIP) induced by the mantle plume head, followed by subsequent age‐progressive volcanic tracks resulting from plate drifting above the plume tail.
F. Yang, X. L. Huang, L. Liu, Y. G. Xu, Y. Hua, P. L. He, L. Zhang, W. F. Zhang, Y. Yu, H. Y. Li   +9 more
wiley   +1 more source

DDL-1气氡仪用于嘉峪关断层气氡日常观测的可行性研究

Dizhen xuebao
针对闪烁室法测氡仪在使用中存在的观测环节多、降本底耗时、固体源活度失准、仪器校准不准确、计算过程繁琐等问题，嘉峪关台引进一台DDL-1气氡仪进行试验研究，就仪器工作原理、主要技术参数、校准流程、观测数据稳定性等方面与FD-125氡钍分析仪进行对比分析。结果表明：DDL-1气氡仪在仪器校准方面优势明显，其操作简单，能够自动完成K值计算，有效缩短校准时长；定时定量观测模式下，两套仪器观测曲线同步性较好，仪器运行稳定；在降本底方面，DDL-1气氡仪虽有了显著改善，但仍存在气温较高时本底难降的问题 ...
Junbin Shang, Lan Ma, Qiaoli Zhang, Xi Cao, Yangyang Li, Guiwen Zhang, Dandan Gong   +6 more
doaj   +1 more source

Seismicity, Repeating Earthquakes, and Tomographic Imaging of the Blanco Transform Fault System, Northeast Pacific

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 5, May 2026.
Abstract The Blanco transform fault system (BTFS) represents an evolving transform plate boundary in the Northeast Pacific Ocean. Its seismic behavior was captured with a dense network of 54 ocean‐bottom seismometers (OBS) operated for 1 year. We created a high‐resolution earthquake catalog based on different machine‐learning onset pickers.
D. Lange, Y. Ren, I. Grevemeyer
wiley   +1 more source

Fault Volume Digital Twin to Reproduce the Full Slip Spectrum, Scaling, and Statistical Laws

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 5, May 2026.
Abstract Seismological and geodetic observations of fault zones reveal diverse slip dynamics, scaling, and statistical laws. Existing mechanisms explain some but not all of these behaviors. We show that incorporating an off‐fault damage zone—characterized by distributed fractures surrounding a main fault—can reproduce many key features observed in ...
M. Almakari, N. Kheirdast, C. Villafuerte, M. Y. Thomas, P. Dubernet, J. Cheng, A. Gupta, P. Romanet, S. Chaillat, H. S. Bhat   +9 more
wiley   +1 more source

Longwave radiation anomalies associated with seismic activity in the northern Tibetan Plateau

Frontiers in Earth Science
Seismically active northern Tibetan Plateau necessitates the application of remote sensing-driven earthquake precursor detection. We applied wavelet transform and power spectrum analysis to outgoing longwave radiation (OLR) from 37 M ≥ 5.0 earthquakes ...
Yifei Gong, Xiao Guo, Yuansheng Zhang, Meijiao Zhong, Dingnan Guo, Yuanyan Xu, Qiulin Qin, Yingwen Fu   +7 more
doaj   +1 more source

Lateral Variations in Lunar Crustal Thickness Inferred From Apollo Seismic and GRAIL Gravity Data

Journal of Geophysical Research: Planets, Volume 131, Issue 5, May 2026.
Abstract The internal structure of the Moon is key to understanding its formation, evolution, and bulk composition. In particular, determining the structure of the crust–mantle interface (Moho), including its lateral variations, is of significant importance, but current knowledge is still insufficient to fully constrain it.
Xiang Zhang, Taichi Kawamura, Mélanie Drilleau, Philippe Lognonné, Samuel Henri, Zongbo Xu, Keisuke Onodera, Thomas Bodin   +7 more
wiley   +1 more source

Earth's Lower Mantle Predominated by Ferric Iron‐Rich Bridgmanite Inferred From High Pressure Elasticity Measurements

Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract The absence of sound‐velocity data spanning the entire lower mantle pressures for (Fe, Al)‐bearing bridgmanite impedes direct comparisons with seismic wave observations, leaving the chemistry of the lower mantle unresolved. The present ultra‐high pressure sound‐velocity measurements of in situ synthesized (Fe, Al)‐bearing bridgmanite up to 130 
P. Saha, M. Murakami, N. Miyajima
wiley   +1 more source

SeisMoLLM: Advancing Seismic Monitoring via Cross‐Modal Transfer With Pretrained Large Language Model

Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract Recent advances in deep learning have transformed seismic monitoring, yet most existing methods remain task‐specific and data‐limited, restricting performance on challenging scenarios and generalization to unseen data. Large‐scale pretraining has addressed similar limitations in other fields, but its application to seismic data faces ...
Wang Xinghao, Feng Liu, Rui Su, Zhihui Wang, Lihua Fang, Lianqing Zhou, Lei Bai, Wanli Ouyang   +7 more
wiley   +1 more source

Al2O3 in Anorthositic Slabs: A New Perspective on LLSVPs and Seismic Velocity Variations

Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract Aluminum is a key component of crustal and mantle minerals, influencing melting and geochemical evolution within the Earth. Al2O3 exists as corundum at the surface and in upper mantle conditions, but transforms into high‐pressure phases like Rh2O3(II) at lower mantle depths, enabling stability over a wide pressure range.
Ishita Das, Vincent Adongo, Gaurav Shukla   +2 more
wiley   +1 more source