Results 51 to 60 of about 11,537 (242)

Multiscale Cartographic Integration for Exploring and Predicting Critical Raw Materials in Coastal Placers of the Rías Baixas (NW Spain)

Applied Sciences
The exploration of coastal placer deposits, often enriched in critical raw materials demanded by industry, is significantly challenged by the dynamic marine environment and by the limited research devoted to developing dedicated exploration methodologies.
Wai L. Ng-Cutipa, Francisco Javier González, Ana Lobato, Teresa Medialdea, Luis Somoza, Esther Boixereu, Georgios P. Georgalas, Irene Zananiri, Rubén Piña, Ana Claudia Teodoro   +9 more
doaj   +1 more source

Profils longitudinaux et ruptures de pente : enseignements géomorphologiques en Bretagne du sud

Physio-Géo, 2014
Analysing of longitudinal profiles of coastal river channels in South Brittany allows to highlight relationships between fluvial dynamics, lithology and tectonics.
Jean-Pierre Larue
doaj   +1 more source

Lower Eocene sedimentary succession and microfossil biostratigraphy in the central northern Caucasus basin

Geologica Acta, 2020
The lower Eocene sediments from the classical Paleogene section exposed along the Kheu River, northern Caucasus, southern Russia are here studied. This ca. 50m thick succession is lithologically contrasting: the lower and upper parts are composed by soft
E. Shcherbinina, A. Iakovleva, Yu. Gavrilov , O. Golovanova, N. Muzylöv   +4 more
doaj   +1 more source

Rock mechanical properties under reconstructed deep in situ thermo–hydro–mechanical conditions: Implications for CO₂‐related injection scenarios

Deep Underground Science and Engineering, EarlyView.
The graphical abstract illustrates a reconstructed in situ thermo‐hydro‐mechanical (THM) framework in which porosity serves as the central variable linking stress, pore pressure, and temperature to evolving mechanical properties of rocks. Under burial conditions, in situ stress, pore pressure, and temperature jointly govern volumetric strain and ...
Mingyuan Lu, Jun Wang, Zixiong Qi, Ruixuan Chen, Hongtao Wang, Hongwei Zhou   +5 more
wiley   +1 more source

Explainable hybrid stacking ensemble method for hard rock pillar stability prediction and engineering applications

Deep Underground Science and Engineering, EarlyView.
This research proposes an interpretable hybrid stacking ensemble framework, optimized by the Sparrow Search Algorithm, to enhance hard rock pillar stability prediction. By integrating six machine learning models—k‐nearest neighbors, support vector machines, random forests, Gradient Boosting Decision Tree, eXtreme Gradient Boosting, and Light Gradient ...
Ning Wang, Guoyan Zhao, Meng Wang, Taraka Pattela   +3 more
wiley   +1 more source

To the question of local stratigraphic subdivisions of Cretaceous sediments of the Ukrainian sector of the northwestern shelf of the Black Sea. Article 2. Upper cretaceous

Вісник Харківського національного університету імені В.Н. Каразіна. Серія Геологія. Географія. Екологія
Introduction. Upper Cretaceous deposits are widespread on the northwestern shelf of the Black Sea. They were discovered by drilling 35 wells on 18 areas and are considered promising for hydrocarbons. In these deposits, the Shmidtivske (Maastrichtian) gas
Ihor Ishchenko, Leonid Yakushyn
doaj   +1 more source

TAMNet: Temporal and adaptive‐frequency network with MixStyle for cross‐region oil and fluid production forecasting

Deep Underground Science and Engineering, EarlyView.
This paper presents temporal and adaptive‐frequency network with MixStyle (TAMNet), a deep time‐series modeling framework for accurate and robust multi‐well oil productivity forecasting. TAMNet integrates transformer and long short‐term memory architectures to capture both short‐ and long‐term temporal dependencies, enhanced by a temporal gate unit ...
Chunxi Yang, Leifeng Meng, Qinghu Fan, Ziang Guo, Ting Bao, Pingdong Zhong, Fulin Luo   +6 more
wiley   +1 more source

Study on the Influence of Temperature Distribution in Thermite Plugging Abandoned Well Technology

Energies
With the intensive development of oil and gas resources leading to a rapid increase in abandoned wells, sealing failures may cause oil and gas leakage and environmental pollution.
Hao Liu, Jie Zhang, Ruitao Sun, Xiang Li, Jiajun Yao, Jiazheng Zhou   +5 more
doaj   +1 more source

Investigation on the failure evolution characteristics of surrounding rock in deep cross‐fault roadway: Based on physical model test and numerical simulation

Deep Underground Science and Engineering, EarlyView.
This study reveals the failure evolution characteristics of deep cross‐fault roadway surrounding rock under excavation support and periodic weighting. Periodic weighting readily induces fault activation, with the spatial distribution of failed rock masses being controlled by the fault strike and dip.
Tiezhu Li, Suping Peng, Jing Zheng, Zhanhua Yang, Qijun Tian   +4 more
wiley   +1 more source

Stochastic Facies Modeling of the Lower‐Burdekin Delta Aquifer Based on Lithological Interpretation From Legacy Boreholes

Water Resources Research
The spatial heterogeneity of aquifer properties plays an important role in the movement of groundwater and contaminants. The characterization of heterogeneity from field observations is often needed to develop groundwater models used to inform management
Guillaume Pirot, Dylan J. Irvine, S. Cristina Solórzano‐Rivas, Adrian D. Werner   +3 more
doaj   +1 more source