Results 31 to 40 of about 11,155 (262)
Selenium in certain metamorphic rocks [PDF]
Bulletin of the Geological Society of Finland, 1973 The selenium contents of Precambrian metamorphic rocks from Finland were studied and tentative averages are presented. The pattern of the distribution of selenium in metamorphic rocks can be summarized as follows: Selenium most probably does not enter ...
T. Koljonen
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Competitive Adsorption of Organic Molecules on Clay Rock
Procedia Earth and Planetary Science, 2017 Abstract The processes governing adsorption of anthropogenic organic molecules on natural systems are complex. The presence of various phases in soils and mudstones may lead to various and simultaneous retention mechanisms. Adsorption experiments were performed on acetic, o-phthalic and citric acids on the Callovo-Oxfordian clay rock.
Dagnelie, R. +3 more
openaire +2 more sources
Journal of Applied Polymer Science, EarlyView.Development of sodium alginate beads doped with Limnospira platensis, designed for the gradual release of nutrients and bioactive molecules into soil. The biomaterial combines biodegradability, controlled‐release potential, and microalgal biomass valorization, contributing to reduced nutrient losses through leaching and the development of more ...
Mariana Araújo Gatto +6 more
wiley +1 more source
Applied SciencesThe dielectric response of clay-bearing rocks is complex, which seriously affects the evaluation of oil saturation. This paper introduces the dual-Debye model to characterize the dielectric dispersion characteristics of pore water and the Debye model to ...
Jianshen Gao, Jiang Wang, Kun Liu
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Investigation on thermal property parameters characteristics of rocks and its influence factors
Natural Gas Industry B, 2020 In this paper, the thermal property parameters of rocks from different lithology were studied with the cores from the different formation in Sichuan Basin and Tarim Basin as the research objects.
Jian Xiong +5 more
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Clade‐wide morphological and functional variation of the sauropsid columella
The Anatomical Record, EarlyView.Abstract The columella (=stapes) is the middle ear bone of reptiles that transmits vibrations from the environment to the inner ear. It has been shown to exhibit extensive interspecific morphological disparity in several clades; however, its morphological variation and associated functional consequences remain poorly described.
John Peacock +4 more
wiley +1 more source
Dental anomalies in Pleistocene African hippopotamuses from Olduvai Bed II
The Anatomical Record, EarlyView.Abstract Hippopotamuses are key palaeoenvironmental indicators in African Pleistocene ecosystems due to their ecological dependence on permanent water bodies and their frequent representation in the fossil record. This study examines dental anomalies in Hippopotamus cf. gorgops from several localities in Bed II of Olduvai Gorge (Tanzania), dated to ca.
Darío Fidalgo +4 more
wiley +1 more source
Geologija, 2002 Clay mineral diagenesis of Carboniferous to Paleogene rocks within the Alpine-Dinaric junction was studied and compared to vitrinite reflectance. Generally, there is a good fit between clay mineral diagenesis and VR. However, clay mineral alterations lag
Thomas Rainer +3 more
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Archaeological Prospection, EarlyView.ABSTRACT Medieval and early modern drowned villages in the intertidal zone of the Scheldt estuary (the Netherlands) constitute intriguing yet largely understudied components of north‐western Europe's underwater cultural heritage. Despite their high archaeological potential as time capsules of past settlement landscapes, research has remained limited ...
Jan Trachet +9 more
wiley +1 more source
Известия Томского политехнического университета: Инжиниринг георесурсов, 2023 The relevance of the work stems from the need to develop requirements for sulfonated bitumen applied in the composition of water-based drilling fluids to control their quality when entering drilling enterprises.
Irina N. Kulyashova +4 more
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