Journal of Economic Geology, 2021 Introduction The chemical composition of biotite in mineralization associated with granitoids and copper porphyry deposits is sensitive to several chemical and physical factors.
Ahmad Ahmadi Khalaji +4 more
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Dissolution of silicate minerals and nutrient availability for corn grown successively [PDF]
Pesquisa Agropecuária Brasileira, 2022 The objective of this work was to evaluate the nutrient availability for corn (Zea mays) grown successively in pure and ground biotite schist and biotite syenite rock samples.
Luise Lottici Krahl +4 more
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Isotopic ages of Lentiira - Kuhmo - Kostomuksha olivine lamproite - Group II kimberlites [PDF]
Bulletin of the Geological Society of Finland, 2007 The Lentiira-Kuhmo-Kostomuksha triangle, along the Finland – Russian border and within the central part of the Archean Karelian craton, contains numerous examples of phlogopite-rich, ultramafic, mantle-xenocryst-bearing and, in some cases, diamond ...
H. O'Brien, D. Phillips, R. Spencer
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Discrimination between primary magmatic biotites, reequilibrated biotites and neoformed biotites
Comptes Rendus. Géoscience, 2005 The ternary diagram TiO 2 –FeO*–MgO (FeO* = FeO + MnO) is proposed as a quantitative objective tool for distinguishing between primary magmatic biotites and those that are more or less reequilibrated, or possibly neoformed, by or within a hydrothermal fluid.
Hassane Nachit +3 more
openaire +1 more source
Microorganisms, 2018 A sandstone outcrop exposed to freshwater seepage supports a diverse assemblage of photosynthetic microbes. Dominant taxa are two cyanophytes (Oscillatoria sp., Rivularia sp.) and a unicellular green alga (Palmellococcus sp.).
George E. Mustoe
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Meccanismi di sostituzione del titano nella biotite in funzione dell'ambiente petrogenetico. [PDF]
, 2022 The purpose of this thesis is to investigate on the relationships between mechanisms of Ti substitution in biotite and petrogenetic environments. Ti can be accommodated in biotite according to three main substitution mechanisms: Ti-vacancy, where ...
Cavallin, Davide
core
Radiometric Constraints on the Timing, Tempo, and Effects of Large Igneous Province Emplacement
Geophysical Monograph Series, Page 27-82., 2021 Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Jennifer Kasbohm +2 more
wiley +1 more source
Beilstein Journal of Nanotechnology, 2015 Laser confocal differential interference contrast microscopy (LCM-DIM) allows for the study of the reactivity of surface minerals with slow dissolution rates (e.g., phyllosilicates).
Chiara Cappelli +4 more
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Incorporation of Metal Oxide on Mica Flakes as a Green Pearlescent Pigment: Preparation and Analysis [PDF]
Iranian Journal of Chemical Engineering, 2020 Pearlescent pigments are a variety of pigments that can generate an optical pleasant appearance in the system because of the ability of easy parallel orientation of a large number of platelet-like particles.
M. Cheraghipoor, M. Zakeri
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Electron Microprobe Analysis of Biotite with Reequilibration Texture in Altered Trachyte
Yankuang ceshi, 2019 BACKGROUND The chemical composition of biotite contains important genetic information. The in-situ analyses of biotite with metasomatic texture can reflect the migration of the elements during the metasomatic alteration, and provide mineralogical ...
NIE Xiao +4 more
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