Results 191 to 200 of about 330,203 (416)
Vanadium geochemistry in the biogeosphere –speciation, solid-solution interactions, and ecotoxicity
Applied Geochemistry, 2019 J. Gustafsson
semanticscholar +1 more source
Deep Underground Science and Engineering, EarlyView.This paper studies the distribution characteristics of the current in situ stress field in northeast Yunnan Province by using multisource stress data, including in situ stress measurements, focal mechanism solutions, and borehole damage information, and comprehensively determines the in situ stress magnitude and direction in the mining area.
Hui Wang +6 more
wiley +1 more source
Environmental Toxicology and Chemistry, Volume 42, Issue 1, Page 7-18, January 2023., 2023 Abstract In the present study, we investigated the possibility of identifying the source oils of exposed fish using ratios of bicyclic sesquiterpane (bicyclane) chemical biomarkers. In the event of an oil spill, identification of source oil(s) for assessment, or for litigation purposes, typically uses diagnostic ratios of chemical biomarkers to produce
Francis D. Spilsbury +6 more
wiley +1 more source
Geology and geochemistry of uranium in marine black shales--A review [PDF]
, 1961 Vernon Emanuel Swanson
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A review of multiscale numerical modeling of rock mechanics and rock engineering
Deep Underground Science and Engineering, EarlyView.Multiscale numerical methods of rock mechanics and rock engineering are reviewed, and the review results show that more attention should be paid to the development of an advanced constitutive model in addition to numerical techniques themselves. Abstract Rock is geometrically and mechanically multiscale in nature, and the traditional phenomenological ...
Xindong Wei, Zhe Li, Gaofeng Zhao
wiley +1 more source
Journal of Quaternary Science, Volume 38, Issue 1, Page 107-122, January 2023., 2023 Abstract Small mountain lakes are natural archives for understanding long‐term natural and anthropogenic impact on the environment. This study focused on long‐term (last ca. 13 000 years) vegetation changes and sedimentary processes in the catchment area of Lake Planina pri jezeru (1430 m a.s.l.) by using mineralogical, geochemical and palynological ...
Nina Caf +8 more
wiley +1 more source
Deep Underground Science and Engineering, EarlyView.The Fobinso granitoids are granodiorites, while the Esuajah granitoids are granites based on their mineralogical composition. The granitoids are generally enriched in LILE and LREE than HFSE, MREE, and HREE, indicating mixing with crustal sources during their evolution.
Emmanuel D. Sunkari +2 more
wiley +1 more source
Deep Underground Science and Engineering, EarlyView.The influence of gas on the instability and failure of rock–coal–rock combinations is considered. The damage characteristics of gas‐bearing rock–coal–rock combinations under different confining pressures, axial loading rates, and gas are revealed. A constitutive model for gas‐bearing rock–coal–rock damage considering gas is established.
Feng Du +8 more
wiley +1 more source