Results 11 to 20 of about 4,305 (211)
SN Applied Sciences, 2023 Gold mineralization of the Upper Lom Basin in the eastern Cameroon goldfield is spatially associated with tourmaline. The goldfield belongs to the Adamawa-Yadé Domain of the Central African Fold Belt and is characterized by eluvial, alluvial and lode ...
Nicoline Kibong Fontem +6 more
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Geochemistry and δ11 B evolution of tourmaline from tourmalinite as a record of oceanic crust in the Tonian Ibaré ophiolite, southern Brasiliano Orogen [PDF]
Anais da Academia Brasileira de Ciências, 2020 The isotopic and geochemical evolution of tourmaline constrain the processes of paleo-oceanic lithosphere in ophiolites. The Brasiliano Orogen is a major structure of South America and requires characterization for the understanding of Gondwana ...
KARINE DA ROSA ARENA +4 more
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Mineralogy Characteristics and Coloration Mechanism of Green Tourmaline in Tanzania
Yankuang ceshi, 2022 BACKGROUND There are differences in the production characteristics, chemical composition, coloration mechanism and formation conditions of green tourmaline from different producing areas.
TAO Longfeng +3 more
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Геодинамика и тектонофизика, 2023 40Ar/39Ar analyses were made on maruyamaite (potassium-dominant tourmaline) from tourmaline-quartz-feldspar rocks discovered within the Kumdy-Kol microdiamond deposit (Kokchetav massif, North Kazakhstan).
A. V. Korsakov +3 more
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Evolution of ore- forming fluids in Dashkasan gold deposit, NE Qorveh, West of Iran, based on tourmaline chemical composition and fluid inclusion data [PDF]
پترولوژی, 2023 Tourmaline is a borosilicate mineral with general formula of XY3Z6[T6O18](BO3)3V3W. Experimental studies demonstrate a wide range of stability for tourmaline-supergroup minerals to record different geological processes.
Mohammad Moradi +3 more
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Journal of Economic Geology, 2017 Introduction The study area is a part of the Sanandaj- Sirjan zone that is located in the NW of Azna city and NE of the dimension stone mine of Jan between 49° 11' 41"and 49° 16' 07" E longitude and 33° 36'35" and 33° 38'12" N latitude., A pluton of ...
Arezoo Moradi +2 more
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TOURMALINE FROM LATE QUARTZ VEINS OF THE MURTYKTY GOLD DEPOSIT, REPUBLIC OF BASHKORTOSTAN [PDF]
Минералогия, 2020 Tourmaline, an intermediate member of the oxyschorl–oxydravite–oxymagnesio-foitite-bosiite series with a predominance of the oxy-dravite-bosiite end-member, was studied from late calcitequartz veins in the eastern zone of the Murtykty gold deposit ...
M.A. Rassomakhin +3 more
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The characterization of tourmaline and its effects on plant growth
Sustinere: Journal of Environment and Sustainability, 2017 The purpose of this study was to investigate the characteristics of ACERALIVEN™, a commercial tourmaline, and to test its effect on plant growth. According to our analysis, ACERALIVEN™ belongs to the Si-Al-Mg tourmaline structure.
Sin-Yi Huang +6 more
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The Synthesis and Characterization of Poly(methyl methacrylate-tourmaline acrylate)
Advances in Materials Science and Engineering, 2016 In order to synthesize the tourmaline-containing functional copolymer, the polymerizable organic tourmaline acrylate was prepared by the surface modification on tourmaline powder and then copolymerization with methyl methacrylate to get poly(methyl ...
Yingmo Hu, Xubo Chen, Yunhua Li
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Photocatalytic mechanism of tourmaline/ZnO composites
Cailiao gongcheng, 2019 Tourmaline/ZnO composite material was prepared by one-step hydrothermal method. The structure, morphology and optical properties of the samples were characterized by X-ray diffraction, scanning electron microscopy, X-ray fluorescence spectroscopy and UV ...
QI Shu-yan +3 more
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