Results 1 to 10 of about 542 (177)

Geology and geochemical variations within the eastern Lebowa Granite Suite, Bushveld Igneous Complex, South Africa: insights from fractionation and hydrothermal interference

Frontiers in Geochemistry
The Lebowa Granite Suite (LGS), representing the youngest component of the Bushveld Igneous Complex (BIC) magmatism, is closely associated with numerous polymetallic mineralisation assemblages.
Rames Chauke
doaj   +1 more source

Geochemistry of mylonitic tourmaline-bearing granite- gneiss pluton in the northeast of June mine

Journal of Economic Geology, 2017
Introduction Studied mylonitic granite-gneiss body is located in the Northwest of the Azna region in the Lorestan province close to the June dimension stone mine.
Arezoo Moradi, Nahid Shabanian Boroujeni , Ali Reza Davoudian Dehkordy   +2 more
doaj   +1 more source

Geochemical Characteristics of Paleoproterozoic Granites in the Rizhao Area, Shandong Province: Implications for the Breakup of the Columbia Supercontinent

Yankuang ceshi
The Rizhao area in Shandong Province lies on the northeastern margin of the Yangtze block, south of the Tanlu fault zone. It is a key region for investigating the breakup processes of the Columbia supercontinent.
Yaoyao ZHANG, Honglei ZHAN, Wei ZHU, Peng YANG, Benli GUO, Fangyuan JIANG, Xiaolong HE, Kai LIU   +7 more
doaj   +1 more source

Petrographic and geomechanical characterization of the Ngaoundal rock massifs in Adamawa Cameroon for use in road engineering

Discover Geoscience
Construction companies and the local population use the rocks as construction materials without considering their characteristics. However, characterizing these massifs levels before their use is essential to guarantee the quality and durability of the ...
Abdoul Aboubakar, Ilalie Bertille Kentsa Manefouet, David Ikome Lyonga, Lydie Konga, Jean Paul Sep Nlomngan, Loique Rodolph Mbounou Azefack, Quentin Marc Anaba Fotze, Christian Mana Bouba, Thomas Tatietse Tamo   +8 more
doaj   +1 more source

Mineralogia dos greisens da área Grota Rica, Plúton Água Boa, Pitinga, Amazonas

Brazilian Journal of Geology
Resumo: O topázio-álcali-feldspato-granito, fácies mais evoluída do plúton Água Boa, foi afetado por processos de alteração hidrotermal, que culminaram com a formação de greisens e veios de quartzo, principais hospedeiros de mineralizações de Sn e ...
Gilmara Regina Lima Feio, Roberto Dall’Agnol, Régis Munhoz Krás Borges, Hilton Tulio Costi1, Claudio Nery Lamarão   +4 more
doaj   +1 more source

Obliquity of alkali feldspars in the Tanakami and Shigaraki Granites, Southwest Japan

The Journal of the Geological Society of Japan, 1990
NISHMURA, Sadahiro, NAKANO, Satoshi, Tomita, Katsutoshi, Makino, Kuniaki   +3 more
openaire   +2 more sources

Feldspar of alkali-granite complex Khaldzan-Buregteg (Western Mongolia): features of structure and chemical composition

Известия Томского политехнического университета: Инжиниринг георесурсов, 2016
Composition, structure and other features of minerals are the most important genetic characteristics reflecting the conditions of etheir formation and allowing reconstructing the life of a geological object. Feldspar due to its crystallization in a wide range of temperatures and pressures, isomorphic substitutions and breakdown of solid solutions, is ...
Ksenia Sergeevna Zenina, Tatiana Stepanovna Nebera, Sergey Ivanovich Konovalenko   +2 more
openaire   +2 more sources

Ovservation of textures in alkali feldspar from a granite porphyry

Abstracts for Annual Meeting of Japan Association of Mineralogical Sciences, 2007
TAKAYA, MASAKI, SHIMOBAYASHI, NORIMASA, MIYAKE, AKIRA, KITAMYRA, MASAO   +3 more
openaire   +1 more source

Optically Stimulated Luminescence of Alkali Feldspars from Granite and Pegmatite

Abstracts for Annual Meeting of Japan Association of Mineralogical Sciences, 2011
Suda, Yuta, Makino, Kuniaki, Nakano, Satoshi   +2 more
openaire   +1 more source

Sustainable Concrete Production Using Granodiorite, Alkali Feldspar Granite, and Mafic Metavolcanic Rock Powders as Supplementary Cementitious Materials. [PDF]

Materials (Basel)
Faried AS, Fathy N, Morsi WM, Dawoud M, Mahmoud AS, Osman KM.   +5 more
europepmc   +1 more source