Results 31 to 40 of about 1,208 (208)

Constraints on Bend‐Faulting and Mantle Hydration at the Marianas Trench From Seismic Anisotropy

Geophysical Research Letters, 2023
Subduction zones are a key link between the surface water cycle and the solid Earth, as the incoming plate carries pore water and hydrous minerals into the subsurface.
Hannah F. Mark, Daniel Lizarralde, Douglas A. Wiens   +2 more
doaj   +1 more source

Fast iterative method for seismic wave travel time calculation under undulating surface conditions

Frontiers in Environmental Science, 2022
Seismic wave travel time is an important seismic attribute information and is widely used in various seismic forward and inversion methods, including seismic migration imaging, seismic tomography, seismic wave forward modeling and other core seismic data
Meng Li, Meng Li, Jian Zhang, Jian Zhang, Hui Sun, Fuliu Gao, Chenglang Wang, Ruoge Xu, Xiaoyan Zhao, Jun Zhou   +9 more
doaj   +1 more source

Optimizing Strategies for Non‐Invasive Prospection of Settlements in the Intertidal Zone: A Case Study From the Centre of the Drowned Medieval Village of Tolsende (Scheldt Estuary, the Netherlands)

Archaeological Prospection, EarlyView.
ABSTRACT Medieval and early modern drowned villages in the intertidal zone of the Scheldt estuary (the Netherlands) constitute intriguing yet largely understudied components of north‐western Europe's underwater cultural heritage. Despite their high archaeological potential as time capsules of past settlement landscapes, research has remained limited ...
Jan Trachet, Sarah Bäumler, Stefan Krojer, Jeroen Verhegge, Wim De Clercq, Philippe De Smedt, Wouter H. Maes, Bente S. Majchczack, Immo Trinks, Dennis Wilken   +9 more
wiley   +1 more source

Lessons learned from marine refraction seismic experiments in the Ligurian Sea

BSGF - Earth Sciences Bulletin
Wide-angle refraction seismic experiments are generally executed along 2D profiles. In this study, we investigate the potential and limitations of using adjacent 2D wide-angle seismic profiles for 3D tomography.
Murray-Bergquist Louisa, Dannowski Anke, Lange Dietrich, Kopp Heidrun, Beniest Anouk   +4 more
doaj   +1 more source

Scanning Parametric Sediment Echosounder as Tool for Underwater Archaeological Prospection

Archaeological Prospection, EarlyView.
ABSTRACT Underwater cultural heritage 3D prospection techniques, especially for remains that are partly buried in the ground, are only very rarely available and often can only be applied with considerable technical effort. To overcome this limitation, we evaluate a methodological adaption of widely used and available single channel parametric sediment ...
Dennis Wilken, Philipp Held, Jacob Geersen, Marcel Bradtmöller, Peter Feldens, Jens Schneider v. Deimling   +5 more
wiley   +1 more source

Evaluation of the correlation between passive velocity tomography and mining seismic activity

Scientific Reports
Mining seismic activity is an important factor in assessing the risk of rockbursts in coal mines. In order to predict the mining seismic activity, this study uses qualitative and quantitative analysis methods to explore the correlation between passive ...
Zhiyong Zhang, Wen Cao, Shuailong Wang, Yue Hu, Linming Dou   +4 more
doaj   +1 more source

Application of Cross-Hole Tomography for Assessment of Soil Stabilization by Grout Injection

Geosciences, 2019
Currently, the spread of megalopolises poses an ever-increasing necessity for underground space development for the purpose of the arrangement of transport communications, underground parking areas, trade areas, etc.
Mikhail Lebedev, Kirill Dorokhin
doaj   +1 more source

The damage and failure mechanism of prestatically loaded rock during medium‐strain rate cyclic impact loading

Deep Underground Science and Engineering, EarlyView.
Based on experimental results and theoretical analysis, an established rock damage accumulation model that comprehensively considers the preapplied static load, impact peak value, impact frequency, and impact times. Abstract To study the rock damage mechanism under high static loading and superimposed medium strain rate cyclic impact loading, a series ...
Wei Wang, Hanpeng Wang, Zicheng Wang, Xinyuan Xie, Yunhao Wu, Jinhou Zhang, Dekang Sun   +6 more
wiley   +1 more source

Exploring wave propagation behaviors in rock: A grain‐based perspective on mineral structures

Deep Underground Science and Engineering, EarlyView.
This study investigates wave propagation in rock at the grain scale using a grain‐based model, revealing that mineral elastic modulus significantly influences wave attenuation while grain size and distribution have limited effects. A novel peak particle velocity attenuation prediction model is proposed and validated for grain‐scale wave propagation ...
Zhiyi Liao, Jiachen Xu, Kai Zhang, Changtai Zhou   +3 more
wiley   +1 more source

Application of Experimental Configurations of Seismic and Electric Tomographic Techniques to the Investigation of Complex Geological Structures

Geosciences
The main purpose of this study is the subsurface investigation of two complex geological environments focusing on the improvement of data acquisition and processing parameters regarding electric and seismic tomographic techniques.
Vasileios Gkosios, John D. Alexopoulos, Konstantinos Soukis, Ioannis-Konstantinos Giannopoulos, Spyridon Dilalos, Dimitrios Michelioudakis, Nicholas Voulgaris, Thomas Sphicopoulos   +7 more
doaj   +1 more source