Phosphate sequence study of Boqueirâo pegmatite (Rio Grande Do Norte State, Brazil) [PDF]
, 2015 The Boqueirão pegmatite is located in the Borborema Pegmatite Province in the state of Rio Grande do Norte (NE Brazil) hosted by Neoproterozoic taconglomerates of Equador Formation.
Amores Casals, Sandra +4 more
core
The effect of Schorl on the photocatalytic properties of the TiO2/Schorl composite materials
Results in Physics, 2017 The TiO2/Schorl composite materials were synthesized by a hydrothermal method. The results showed that the amount of Schorl obviously affected the photocatalytic performance of the TiO2/Schorl. The fluorescence intensity of all TiO2/Schorl samples was weaker than that of the pure TiO2 implying the Schorl could effectively reduce the recombination rate ...
ShuYan Qi +3 more
openaire +2 more sources
Halford Jonh Mackinder (1861-1947) - scholar, politician, statsman [PDF]
, 2016 Досліджено професійний шлях Г.Дж. Маккіндера та його внесок у геополітикуИсследовано профессиональный путь Х.Дж.Маккиндера и его вклад в геополитикуThe authors investigated the professional way of H.J.Maсkinder and his contribution to ...
Слюсаренко, Павло Миколайович +1 more
core
European Journal of Mineralogy, 2004 Wet-chemical analyses (41) of tourmaline from granitic pegmatites (barren, barren-pocket, beryl, lepidolite types) in the Moldanubicum, Czech Republic revealed that members of the oxy-subgroup ĄV common oxy-schorl, minor oxy-dravite and rare oxy-foitite are more abundant relative to the relevant members of the hydroxy-subgroup. The primary substitution
Milan Novák +2 more
openaire +1 more source
Syros Metasomatic Tourmaline: Evidence for Very High-δ11B Fluids in Subduction Zones [PDF]
, 2017 High-pressure (HP) metamorphic blocks enclosed in a mafic to ultramafic matrix from a mélange on the island of Syros are rimmed by tourmaline-bearing reaction zones (blackwalls).
ALTHERR, RAINER +4 more
core
Estudio de turmalinas y su implicancia genética en cuerpos pegmatoideos del Cerro Guacho, Sierras Septentrionales de la provincia de Buenos Aires [PDF]
, 2013 Fil: Lajoinie, María Florencia. Instituto de Recursos Minerales (INREMI). Facultad de Ciencias Naturales y Museo. Universidad Nacional de La Plata; ArgentinaFil: Canafoglia, María Elena. Centro de Química Inorgánica (CEQUINOR).
Canafoglia, María Elena +3 more
core +2 more sources
Crystal chemistry of the schorl-dravite series
European Journal of Mineralogy, 2004 Nineteen tourmaline samples of various provenances and geological settings were studied by EMPA, SREF and MS to represent the schorl-dravite compositional field. All samples belong to the Alkali group (except one with an X -site vacancy content of 0.53 apfu) and to the Oxy- and Hydroxy-subgroups. Among divalent cations, the main substitution involves
BOSI, Ferdinando, LUCCHESI, Sergio
openaire +2 more sources
An overview on structure, mineralogy and resources of Licungo pegmatites (Mozambique) [PDF]
, 2012 "I Congresso Internacional de Geociências na CPLP"A mineralogia e a distribuição dos recursos base e reservas do Campo Pegmatítico do Licungo está condicionada, principalmente, a alguns lineamentos estruturais de 1ª ordem, de orientação NNE-SSW e NNW-SSE.
Dias, Patrícia Sofia Alves +2 more
core
Are the [6]-coordinated sites in tourmaline in certain cases partially vacant? [PDF]
Mineral Petrol, 2023 Ertl A.
europepmc +1 more source
Crystal Structure of the RNA Lariat Debranching Enzyme Dbr1 with Hydrolyzed Phosphorothioate RNA Product. [PDF]
Biochemistry, 2022 Clark NE +9 more
europepmc +1 more source