Results 271 to 280 of about 42,255 (297)
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The genesis of basaltic magmas
Contributions to Mineralogy and Petrology, 1967This paper reports the results of a detailed experimental investigation of fractionation of natural basaltic compositions under conditions of high pressure and high temperature. A single stage, piston-cylinder apparatus has been used in the pressure range up to 27 kb and at temperatures up to 1500° C to study the melting behaviour of several basaltic ...
Green, D. H., Ringwood, A. E.
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The crystallization of basalts
American Journal of Science, 1929This classic paper presents Fenner9s views of magmatic differentiation against those of N.L. Bowen (1928). Fenner presents the original case for iron-enrichment trends in residual basaltic liquids, contrasted with an iron depletion trend leading to rhyolite.
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Celadonite in continental flood basalts of the Columbia River Basalt Group
American Mineralogist, 2012Celadonite is a common alteration product of basalts in marine environments. It has been argued that marine fluids are necessary for celadonite formation, possibly by providing a source of K and other dissolved cations. Laterally extensive deposits of celadonite occur in basalts of the Grande Ronde Basalt of the Columbia River Basalt Group.
William C. Rember +3 more
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The Journal of Geology, 1932
The basalts of Patagonia, as determined from the literature and from the microscopical and chemical study of rocks from three widely separated localities, are found to belong to those slightly undersaturated types which appear to be characteristic of plateau-basalts in the restricted sense of Gregory and Reck.
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The basalts of Patagonia, as determined from the literature and from the microscopical and chemical study of rocks from three widely separated localities, are found to belong to those slightly undersaturated types which appear to be characteristic of plateau-basalts in the restricted sense of Gregory and Reck.
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2017
In this section, the basic and the latest developments of basalt fiber and its composites will be reviewed in detail. In this context, the chapter involves an introduction, preparation, and the structural (mechanical, thermal, etc.) properties as a beginning to the basalt fiber.
Ferit Cakir +3 more
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In this section, the basic and the latest developments of basalt fiber and its composites will be reviewed in detail. In this context, the chapter involves an introduction, preparation, and the structural (mechanical, thermal, etc.) properties as a beginning to the basalt fiber.
Ferit Cakir +3 more
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Improving the tensile strength of continuous basalt fiber by mixing basalts
Fibers and Polymers, 2017SiO2 is a key factor that affects the tensile strength of continuous basalt fiber, as shown in a previous study. In the present work, to improve the tensile strength of continuous basalt fiber, basalts with a high SiO2 content were mixed with basalts with a low SiO2 content to obtain basalt mixtures with SiO2 contents ranging from 51 to 58 %.
Haibin Huo +3 more
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An Account of the Basalts of Saxony
2013Jean-François Daubuisson (1769–1841), geologist and engineer, was an Officer of the Légion d'Honneur, Knight of St Louis and Chief Engineer at the Royal Mining Corps. He published numerous papers on geology, mining and hydraulics, and is best known for his textbooks, Traité de géognosie and Traité d'hydraulique.
Patrick Neill +1 more
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Thermal and Sintering Behaviour of Basalt Glasses and Natural Basalt Powders
Journal of Thermal Analysis and Calorimetry, 1999A study of three Spanish and one Bulgarian basaltic rock demonstrated that, after thermal treatment at temperatures higher than 800°C, crystallization of pyroxenes, anorthite and magnetic occurred. Following sintering of the original basalts and powdered original glasses, the same crystalline phases were nucleated and grown in the resulting glass ...
H. Hristov +5 more
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The determination of silicon dioxide in basalt and basalt fibers [PDF]
Glass and Ceramics, 1970 A. V. Krivosheeva +2 more
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