Results 21 to 30 of about 120,352 (308)
Scientific Reports, 2021 Syntheses of Nd2Fe14B magnetic powder by conventional method is a complicated multi-step process, which produces harmful pollutants and consumes a huge amount of energy and resources. Herein we report a simple chemical route for the preparation of (Nd–Pr)
Syed Kamran Haider +4 more
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Bone mineral: update on chemical composition and structure [PDF]
, 2009 Bone mineral: update on chemical composition and ...
Combes, Christèle +3 more
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Chemistry and Mineral Chemistry of Zircon in Alkaline Granites, South Sinal, Egypt [PDF]
Delta Journal of Science, 2010 Such geochemical investigations of alkaline granites as both Wadi Sieh and Wadi Lethi, south Sinai, Egypt, indicate that they are A-type granites. They are similar in major and trace elements but differ in rare earth elements (REE).
M.S. Azab +3 more
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Anais da Academia Brasileira de Ciências, 2007 Gahnite electron probe microanalyses from three pegmatites (Mirador, Capoeira and Quintos) of the Borborema Pegmatitic Province in northeastern Brazil allowed to determine molar compositions ranging from 86.22 to 95.41 mol% gahnite (ZnAl2O4), 1.51 to 6 ...
Dwight R. Soares +3 more
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dragon: A New Tool for Exploring Redox Evolution Preserved in the Mineral Record
Frontiers in Earth Science, 2020 The flow of energy and elements between the geosphere and biosphere can be traced through changing redox chemistry of Earth’s surface. Deep-time trends in the mineral record, including mineral age and elemental composition, reveal a dynamic history of ...
Stephanie J. Spielman, Eli K. Moore
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Geochemistry and mineral chemistry of quartz mica schists within Iseyin-Oyan Schist Belt, Southwestern Nigeria [PDF]
, 2020 © 2020 The Authors. Published by Indian Society for Education and Environment. This is an open access article available under a Creative Commons licence.
Omotunde, Victoria +7 more
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Ti-Fe mineralization in Bafq anomaly no. 15, Central Iran: Insights to mineralogy and mineral chemistry [PDF]
پترولوژی, 2021 The Ti- Fe mineralization in Bafq 15 anomaly located 35 Km NW of Bafq city, and is a part of Poshte Badam Block in the Central Iran. Mineralization including magnetite, titanomagnetite, ilmenite, and minor pyrite which hosted by gabbro and pyroxenite ...
Sakine Amraei +4 more
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Mineral chemistry and thermobarometry of gabbroic rocks from the Pargeh area (NE Qazvin): A key for understanding the crystallization conditions [PDF]
پترولوژیIntroduction Mineral chemistry data as well as petrography provide a comprehensive picture of magma crystallization conditions that support the conclusions based on geochemical data. In addition, the chemical composition of minerals such as clinopyroxene,
Nahid Naseri +4 more
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The Mineral Chemistry Networks of Tin and Tungsten Reflect Metallogenic Events of the Mesozoic
GeosciencesContinental remobilization is a crucial driver of metallogenesis and the formation of ore deposits. Some of the world’s largest mineral deposits of the economically valuable elements tin (Sn), tungsten (W), gold (Au), copper (Cu), lead (Pb), and zinc (Zn)
Eli K. Moore +2 more
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Scientific Reports, 2021 In this study, a nanocomposite of palladium supported graphene oxide (GO)/metal–organic framework (MOF) was prepared using electroless deposition of Pd on GO followed by impregnation method of Pd@GO and MOF. The prepared materials were characterized with
Mogwasha D. Makhafola +6 more
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