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33401
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33402
Determination of Fe(Ⅱ) and Total Iron in Red Sandstone by o-phenanthroline Spectrophotometry
Published 2020-03-01“…BACKGROUND Red bed sandstone is a set of continental or shallow lake clastic rocks in the Danxia landform. Accurate determination of Fe(Ⅱ) and Fe(Ⅲ) in red bed sandstone that indicates the redox relationship during weathering can serve as the dividing basis of weathering degree and depth of the block. …”
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33403
Local adaptation with gene flow in a highly dispersive shark
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33404
Petrology of the Skaergaard Layered Series
Published 2023-12-01“…Estimates predict that a substantial amount of the granophyric melt penetrated as sills into the downward crystallising, upper part of the body as well as into the host rocks. The redistribution of granophyric melts within the solidifying crystal mush complicates predictions of trapped-melt content and mass-balance calculations but helps to explain apparent decoupling of included and excluded trace elements, especially towards the end stages of evolution. …”
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33405
Results from omic approaches in rat or mouse models exposed to inhaled crystalline silica: a systematic review
Published 2024-03-01“…Abstract Background Crystalline silica (cSiO2) is a mineral found in rocks; workers from the construction or denim industries are particularly exposed to cSiO2 through inhalation. cSiO2 inhalation increases the risk of silicosis and systemic autoimmune diseases. …”
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33406
Pressure–Temperature History of the >3 Ga Tartoq Greenstone Belt in Southwest Greenland and Its Implications for Archaean Tectonics
Published 2018-09-01“…Here, we present a detailed study of the pressure–temperature conditions and metamorphic histories for rocks from all fragments of the Tartoq belt using pseudosection modelling and geothermobarometry. …”
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33407
The effect of clay minerals on in-situ leaching of uranium
Published 2023-03-01“…Water permeability and relatively good filtration (not less than 0.5–1 m/day) of ores and rocks of a productive horizon (aquifer) is the most important hydrogeological factors affecting the performance of uranium ISL. …”
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33408
The Strategy of Housing Rehabilitation and Reconstruction after 2022 Earthquake in Cianjur, West Java, Indonesia
Published 2023-04-01“… Monday, November 21st, 2022 at 13.21.10 WIB the Cianjur Regency area was rocked by a tectonic earthquake with a magnitude of M-5.6. …”
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33409
Radon survey in kindergartens and schools of Dushanbe, Republic of Tajikistan
Published 2021-04-01“…When comparing the results of measurements of radon equilibrium equivalent concentration with data on the geological structure of underlying rocks at the locations of the surveyed buildings, no regularity was found. …”
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33410
Letter from Editor
Published 2013-07-01“…From Colombia an important group of metamorphic rocks were studied to obtain the pressure-temperature conditions in a petrogrpahic analysis from mineral assemblages which indicated a prograde regional metamorphism. …”
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33411
Associations between ambient PM2.5 – components and age-specific mortality risk in the United States
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33412
Distinguishing the hauterivian-barremian sediments in the Karkinitsko-North-Crimean though (Zakhidno-Оktyabrska area) by microfosills
Published 2022-12-01“…Based on the peculiarities of the lithological composition of the rocks and the palynological characteristics of the deposits of the Kalininska suite of the Lower Cretaceous deposits of the Crimean Plain, we suggest that the Mesozoic Commission of the NSC of Ukraine consider the issue of distinguishing within its scope two subsoils: the lower one, represented by gray, red-brown, fine-grained, clayey sandstones, sometimes with gravel, and the characterized the Hauterivian spore-pollen complex, and the upper one, represented by dark gray siltstones with layers of sandy or organogenic-detrital limestones, is characterized by the Barremian spore-pollen complex and dinocyst complex of the Odontochitina operculata zone, dated to the Barremian. …”
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33413
Geochronological and geochemical effects of zircon chemical abrasion: insights from single-crystal stepwise dissolution experiments
Published 2024-01-01“…We find that stepwise dissolution at 210 <span class="inline-formula"><sup>∘</sup></span>C is more effective at eliminating material affected by open-system behavior and enriched in U, common Pb (Pb<span class="inline-formula"><sub>c</sub></span>), and light rare earth elements (LREEs); reduces the presence of leaching-induced artifacts that manifest as reverse discordance; and produces more consistent and concordant results in zircon from the three rocks studied. We estimate that stepwise dissolution in three 4 h steps is roughly equivalent to a single <span class="inline-formula">∼</span> 8 h leaching step due to the insulating properties of the PTFE sleeve in the Parr pressure dissolution vessel, whereas traditionally labs utilize a single 12 h leaching step. …”
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33414
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33415
Pore system characteristics of the Permian transitional shale reservoir in the Lower Yangtze Region, China
Published 2016-10-01“…Under tectonic stress, shale rocks could develop mylonitization phenomenon exhibiting organic grains well blend with clay minerals, and produce a mass of microfractures and nanopores between organic matter grains and clay minerals. …”
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33416
Effects of Afforestation Patterns on Soil Nutrient and Microbial Community Diversity in Rocky Desertification Areas
Published 2023-12-01“…Karst ecosystems are characterized by the dissolution of soluble rocks, displaying distinctive landscape features such as rugged peaks, steep slopes, and deep valleys. …”
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33417
Drivers and variability of CO2:O2 saturation along a gradient from boreal to Arctic lakes
Published 2022-11-01“…While the southern part is dominated by granitic and metamorphic bedrock, the sub-Arctic sites are scattered across a range of granitic to sedimentary bed rocks, and the majority of the high-Arctic lakes are situated on limestone, resulting in contrasting lake alkalinities between the regions. …”
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33418
Sr AND Nd ISOTOPES IN HYDROGENETIC FERROMANGANESE CRUSTS FROM THE NORTH PACIFIC
Published 2023-02-01“…The displacement of 87Sr/86Sr occurs towards volcanic rocks, which reflects the high amount of quartz-plagioclase admixture in the sample. …”
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33419
USE OF SILICON PRODUCTION WASTES AS ADDITIVES IMPROVING THE PROCESS PROPERTIES OF THE CEMENT SLURRIES
Published 2022-06-01“…The problem is especially acute when cementing under conditions of low hydrodynamic pressures and low temperatures, in unstable fractured rocks. The main aim: to investigate and determine the possibility of using waste produced by RUSAL ITC LLC as a modifying additive to insulation mixtures used in conditions characteristic of deposits in Eastern Siberia. …”
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33420
Changes of the mass balance of the Garabashy Glacier, Mount Elbrus, at the turn of 20th and 21st centuries
Published 2019-03-01“…The glacier alimentation is decreased, and its tongue retreats with increasing velocity. Rocks and entire lava ridges release from ice at different levels of the glacier. …”
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