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Geopolitical Concerns Arising From Mining Activities in Some Parts of Nigeria and Cameroon
Published 2020-06-01“…Here, we explore these issues in terms of the balance of economic benefits from mining and ensuring geological site maintenance and enhancement. The study was carried out through the use of questionnaires and interviews. 179 respondents were sampled, 147 in Nigeria and 32 in Cameroon. …”
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Integrated high-precision real scene 3D modeling of karst cave landscape based on laser scanning and photogrammetry
Published 2024-09-01“…The establishment of high-precision real scene 3D models can not only serve as an effective tool for scientific research on caves but also, as replicas of the real world, play a crucial role in public dissemination and education, thereby enhancing public understanding of cave geological landscapes.…”
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Preliminary Results of the Kuznetsk Coal Basin Cover Deposits Radon Hazard Assessment
Published 2025-01-01“…The study of the influence of geological structure (e.g., faults) on radon emanations is usually applicable provided that there are conditionally background (control) territories with which radon indicators will be compared. …”
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Lagorio’s Wall in the Crimea: pages of scientific activity of the geologist Oleksandr Lagorio
Published 2024-12-01“…In the latter, a wide profiled scientific school of the scientist was formed, including synthetic geology (experimental mineralogy and petrography)—the most well-known representative of which was the Polish scientist Józef Morozewicz, crystallography (Georg Wulff), and applied and theoretical geology (Dmitro M. …”
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Evaluation of Coal Seam Gas Drainability for Outburst-Prone and High-CO2-Containing Coal Seam
Published 2019-01-01“…Field geology analysis showed geological variations that affected the variations of the coal cleat system and CO2 content in the coal seam. …”
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588
Preliminary Results of Marine Electromagnetic Sounding with a Powerful, Remote Source in Kola Bay off the Barents Sea
Published 2013-01-01“…Thereby specific features of the regional geology, in particular the fault tectonics, were able to be corrected. …”
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589
Advective Heat Transport and the Salt Chimney Effect: A Numerical Analysis
Published 2018-01-01“…The combined effects of depth-dependent permeability coupled with geologic heterogeneity simulate several geologic phenomena that are reported in the literature. …”
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590
Learning-based pattern-data-driven forecast approach for predicting future well responses
Published 2025-02-01“…Recently, data-driven forecast methods, such as data-space inversion (DSI) and a learning-based data-driven forecast approach (LDFA), have been introduced to mitigate the computational cost and geological constraint issues of history-matching methods. …”
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Luminescence and a new approach for detecting heat treatment of geuda sapphire
Published 2025-01-01Get full text
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La collection de vases grecs du marquis de Northampton (1790-1851). Entre archéologie et sciences de la nature
Published 2014-10-01“…He was also a member of several learned societies, and had a keen interest in geology and mineralogy. The article examines the history of his collection and the principles behind its constitution in order to determine its relationship with the natural sciences.…”
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Influence of volatiles (H$_{2}$O and CO$_{2}$) on shoshonite phase equilibria
Published 2023-07-01“…This result has important consequences upon the physical properties of the magma because it influences its viscosity and, as a consequence, velocity during its travel to the Earth surface.Assuming that the widths of Vulcanello conduits vary from 0.5 to 1.5 m, estimates of the ascent velocity vary in the range 1.5 ${\times }$ 10$^{-4}$–3.5 ${\times }$ 10$^{-2}$ m${\cdot }$s$^{-1}$ for CO$_{2}$ free systems and from 5.7 ${\times }$ 10$^{-4}$–1.3 ${\times }$ 10$^{-1}$ m${\cdot }$s$^{-1}$ for CO$_{2}$ bearing systems.Since shoshonitic magmas are common not only in the Italian volcanic provinces (Aeolian Arc, Campi Flegrei, Ischia Island, Pontine Islands, Monti Cimini, Monte Amiata, Capraia Island, Radicofani, Roccamonfina) but also in different volcanoes worldwide (Yellowstone, Mariana Arc, Kurile Arc, Tonga Arc, Andean Arc, Kamchatka Arc), we suggest that the new data will be useful to better understand shoshonitic magma behaviour under relevant geological scenarios. As such, we also suggest that hazard evaluation should incorporate the probability of very rapid ascent of poorly-evolved melts from depth.…”
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Quantifying the crossover from capillary fingering to viscous fingering in heterogeneous porous media
Published 2025-03-01“…Studying immiscible fluid displacement patterns can provide a better understanding of displacement processes within heterogeneous porous media, thereby helping improving oil recovery and optimizing geological CO2 sequestration. As the injection rate of water displacing oil increases and the displacement pattern transits from capillary fingering to viscous fingering, there is a broad crossover zone between the two that can adversely affect the oil displacement efficiency. …”
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Investigation on Nonuniform Extension of Hydraulic Fracture in Shale Gas Formation
Published 2021-01-01“…In this work, based on the geology and engineering characteristics of Changning shale block, different cluster number, cluster spacing, perforation distribution, and flow rate were discussed by the numerical simulation method to clarify multifracture propagation. …”
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