MINERALIZATION CONTROLS AND PETROGENESIS OF THE RARE METAL PEGMATITES OF NASARAWA AREA, CENTRAL NIGERIA [PDF]
Earth Sciences Research Journal, 2008 The pegmatites of Nasarawa area occur in the central part of Nigeria. They are mainly hosted by phyllonites in a NNE-SSW trending shear zone lying east of some foliated Pan-African and West of Jurassic Afu Complex Younger Granites.
O.F. Akintola, J.I.D Adekeye
doaj +1 more source
MICAS FROM PEGMATITES OF THE ILMENY STATE RESERVE [PDF]
Минералогия, 2016 Most comprehensive review of micas from pegmatites of the Ilmeny State Reserve is presented. Correlation between the composition of micas and the type of pegmatite is shown. The data on evolution of micas from amazonite pegmatites are provided.
E.V. Belogub +2 more
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Sequence of crystallisation of pegmatites: the Angola case [PDF]
, 2016 The Precambrian basement of Angola contains several pegmatite fields, although most of them have not been studied yet. Some of them include pegmatites devoid of rare elements, as those found close to Caxito, about 100 km ENE Luanda.
Melgarejo i Draper, Joan-Carles +2 more
core +8 more sources
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
Pegmatites in South-eastern Brazil
, 2000 International audienceTwo pegmatite groups are represented in southeastern Brazil. The first group, resulting from fractional crystallization, is linked to syn-tectonic granites (580 Ma - deformation event D ) and the second one is associated with ...
Moutte, Jacques +7 more
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The composition of gahnite in granitic pegmatites from the Pampean Pegmatite Province, Argentina: Implications for pegmatite fractionation [PDF]
, 2015 Gahnite from LCT granitic pegmatites of the Comechingones (Blanca Dora, Juan Román, Magdalena, La Ona, and Sin Nombre pegmatites) and Conlara (Nancy pegmatite) pegmatite districts, Argentina, was analyzed to investigate the relationship between its ...
Heimann, Adriana +2 more
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High‐Pressure Na‐Ca Carbonates in the Deep Carbon Cycle
Geophysical Monograph Series, Page 127-136., 2020 This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.
Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions
Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Sergey Rashchenko +2 more
wiley +1 more source
Geological and Geochemical Characterisation of Pegmatites around Olode, Southwestern Nigeria [PDF]
, 2020 Olode is prolific in terms of pegmatites, occurring in different ways as large intrusive bodies, as veins and dykes, discordantly intruding the host rocks of mica schist, gneiss and granite.
Olatunji, Akinade, Jimoh, Razak
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Lithium isotopes in micas: an isotopic tool for the classification of granitic pegmatites?
, 2014 International audienceOver the last few decades, acquisition techniques of light stable lithium isotopes have been increasingly improved to investigate the lithium behaviour during pegmatite consolidation. Particularly, δ7Li signatures are mainly studied
Robert, Michèle +3 more
core +4 more sources
Pegmatites in Southwestern Montana [PDF]
, 1941 Little has been written on pegmatites in Montana except in conjunction with reports on mining districts. This subject was chosen as a senior thesis to see what facts could be ascertained regarding pegmatites alone, and an attempt has been made by the ...
Rostad, Ora
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