Results 1 to 10 of about 9,686 (212)
Isotopic fractionation associated to nitrate attenuation by ferrous iron containing minerals [PDF]
E3S Web of Conferences, 2019 Biotic and abiotic laboratory experiments of nitrate and nitrite reduction by Fe-containing minerals were performed and the isotopic fractionation of the different reactions was calculated in order to determine whether it is possible to distinguish ...
Margalef-Marti Rosanna +3 more
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Chrysoprase – history and present
Mineralogia, 2023 The authors present the history of chrysoprase discovery and the progress of knowledge about this material over the millennia, based on the extended review of world literature. Tracing the oldest archaeological artifacts from before 9,000 years, the lens
Sachanbiński Michał +2 more
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Thorite inclusions in zircon of the monzogranite, Lower Nubia, SW Egypt
Mineralogia, 2023 This report presents the results of a petrographical and mineralogical (optical microscopy, BSE-EDS image analysis) study of zircon in samples from the Lower Nubian monzogranite.
Hassan Kamaleldin M., Brunarska Irena
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Minerals discovered in Poland – a review
Mineralogia, 2023 Among nearly 6,000 minerals approved by the International Mineralogical Association (IMA), 34 have been discovered on Polish territory. The article describes the history of these discoveries and the procedure for submitting and approving new minerals. It
Pieczka Adam +2 more
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Contribution of non-exchangeable potassium forms and its accumulation in corn plants
Revista Brasileira de Engenharia Agrícola e Ambiental, 2016 The state of Paraíba, Brazil, has soils from well- to poorly-developed, in which potassium (K) is found in different levels, forms and, consequently, with varying availability to plants. The objective of this study was to evaluate the contribution of non-
Montesquieu da S. Vieira +3 more
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História, Ciências, Saúde: Manguinhos, 2008 O personagem Manuel Ferreira da Câmara ficou conhecido na historiografia pelo seu perfil político de estadista e parlamentar. Contudo sua trajetória histórica mostra que os interesses políticos e seus estudos das ciências naturais estavam associados ...
Alex Gonçalves Varela
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Synthesis and solubility of hopeite Zn3(PO4)2·4H2O
Mineralogia, 2023 Minerals from the phosphate groups are used in environmental engineering as thermodynamically stable vehicles for heavy metals such as zinc. The hopeite Zn3(PO4)2·4H2O was synthesized and characterized by X-ray diffraction and scanning electron ...
Bajda Tomasz +2 more
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Ciência e Agrotecnologia, 2006 Existem no sul do Amazonas aproximadamente 560 mil hectares de campos de cerrados, distribuídos principalmente, nos municípios de Humaitá, Lábrea e Canutama.
Gilvan Coimbra Martins +4 more
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Mineralogia, 2023 The characterization of phosphorite features within specific North African sedimentary series remains incomplete. Hence, the primary aim of this research is to determine the composition of powder patterns and phosphatic allochem fragments within the ...
Boulemia Salim +5 more
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Micropedologia da alteração em perfis de solos com B textural na região de Lavras, Minas Gerais
Revista Brasileira de Ciência do Solo, 2000 Na região de Lavras (MG), foram selecionados perfis de solos com horizonte B textural para a avaliação micropedológica dos processos de alteração e investigação de características de evolução pedológica vinculadas ao material de origem.
M. P. C. Lacerda +2 more
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