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441
Experimental Study on the Mechanical and Acoustic Emission Characteristics of Tuff with Different Moisture Contents
Published 2022-08-01“…Rock materials are often affected by water in underground engineering. …”
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442
Preparation, characterization, and performance of 4A zeolite based on opal waste rock for removal of ammonium ion
Published 2018-12-01“…In this study, 4A zeolite was prepared from opal waste rock by hydrothermal method and applied in ammonium ion adsorption. …”
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443
Petrology, mineral chemistry and tectono-magmatic setting of volcanic rocks from northeast Farmahin, north of Arak
Published 2014-10-01“…Plagioclases in the andesitic and basaltic- andesite rocks are labradorite, bytownite and anorthite (based on electron microprobe) .Moreover, plagioclases in andesitic rocks show that H2O is lesser than 2.5 precent. …”
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444
Lithologic and petrographic features and reservoir properties of rocks of the AV1 horizon in the Las-Egan oil field
Published 2016-08-01“…The laboratory work included optical microscopy, particle size distributions, X-ray, electron-microscopic methods of study of the given rock samples, which allowed identifying their distinctive features by the physical and petrophysical parameters. …”
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445
Assessment of Pozzolanic Activity of Ground Scoria Rocks under Low- and High-Pressure (Autoclave) Steam Curing
Published 2022-07-01“…Two sources of natural scoria rocks were procured and ground for use in concrete as natural pozzolans (NP1 and NP2). …”
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446
Lithologic and petrographic features and reservoir properties of rocks of the AV1 horizon in the Las-Egan oil field
Published 2016-08-01“…The laboratory work included optical microscopy, particle size distributions, X-ray, electron-microscopic methods of study of the given rock samples, which allowed identifying their distinctive features by the physical and petrophysical parameters. …”
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447
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448
The Characteristics, Enrichment, and Migration Mechanism of Cadmium in Phosphate Rock and Phosphogypsum of the Qingping Phosphate Deposit, Southwest China
Published 2023-01-01“…LA-ICP-MS analysis showed that the Cd element content in type 2 was lower, while the organic matter and Cd element content in type 1 were higher, suggesting that Cd may be controlled by organic matter, and the relationship with apatite is not apparent. Electron probe analysis and XRD semiquantitative results show that the content of Cd in pyrite is higher (511 ppm), which is significantly higher than that of bulk rock. …”
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449
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Outcrops as windows to petroleum systems: Insights from the southern Bida Basin, Nigeria
Published 2024-07-01“…Reservoirs comprise Lokoja and Patti Formation sandstones, while shales, claystone, and siltstone serve as source rocks and stratigraphic traps/seals. Detailed studies delineating the key elements of the petroleum systems in the basin have not been conducted due to a lack of subsurface data. …”
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451
New approach towards the classification of microporosity in Miocene carbonate rocks, Central Luconia, offshore Sarawak, Malaysia
Published 2018-06-01“…These results can reduce the number of the assumption made about the internal rock connectivity and quality.For quantitative analysis, 32 high-resolution images of each thin sections were taken under the transmitted light microscopy. …”
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452
Differential strain analysis : application to shock induced microfractures
Published 2010Get full text
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453
Investigation of fragment separation during a circular saw blade cutting rock based on ANSYS/LS-DYNA
Published 2022-10-01Get full text
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454
Lithological and Geochemical Heterogeneity of the Organo-Mineral Matrix in Carbonate-Rich Shales
Published 2021-07-01“…The Domanik Formation is composed of organic-rich low-permeability rocks. Lithological and geochemical peculiarities of rocks were studied using light microscopy, X-ray diffraction analysis (XRD), scanning electronic microscopy (SEM), and evaporation method. …”
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455
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Coal mine rock burst and coal and gas outburst perception alarm method based on thermal infrared image
Published 2023-05-01Get full text
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457
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Pre-earthquake signals – Part I: Deviatoric stresses turn rocks into a source of electric currents
Published 2007-09-01“…This has changed with the discovery that, when igneous or high-grade metamorphic rocks are subjected to deviatoric stress, dormant electronic charge carriers are activated: electrons and defect electrons. …”
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459
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Application of Minerals for the Characterization of Geothermal Reservoirs and Cap Rock in Intracontinental Extensional Basins and Volcanic Islands in the Context of Subduction
Published 2024-02-01“…Herein, emphasis is put on geothermal reservoirs and their cap rock in crystalline rocks, in particular, the basements of sedimentary basins and volcanic islands in the context of subduction. …”
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