Results 91 to 100 of about 13,572 (229)
Industrial mineral resources of Zambia [PDF]
, 2000 Zambia has for many years been heavily dependent upon the mining of copper which, combined with cobalt production, represents over 98% of mineral sales and 75% of export earnings (1997 figures).
Mitchell, Clive
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The Canadian Mineralogist, 2015 Gahnite from LCT granitic pegmatites of the Comechingones (Blanca Dora, Juan Roman, Magdalena, La Ona, and Sin Nombre pegmatites) and Conlara (Nancy pegmatite) pegmatite districts, Argentina, was analyzed to investigate the relationship between its chemistry, pegmatite mineralogy, and pegmatite melt evolution.
Heimann, Adriana +2 more
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Мінеральні ресурси України, 2018 Regularities in the distribution of rare-metal and rare-earth pegmatites within the Western and Central parts of the Ukrainian shield are determined.
A. P. Vasylenko, L. V. Isakov
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Известия высших учебных заведений: Геология и разведка, 2015 Compression during granite crystallization in the anticline arch leads to the formation of fluid- gneiss structures and separation of remanent pegmatite melt with its further moving to the periphery of the complex.
V. A. Utenkov, M. A. Fesenko
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A partial molar volume for B 2 O 3 in haplogranitic melt [PDF]
, 1992 The densitiesa nd thermal expansivitieso f boron-bearingh aplogranitic glassesa nd Iiquids have been determined using a combination of scanning .florimetry and dilatomelry. B2O3 reduces the density of haplogranitic liquids (at 750'C) from 2.295 t 0.006 g
Dingwell, Donald B. +2 more
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Geology, Ecology, and LandscapesThe Bougouni region in southwestern Mali hosts lithium-bearing pegmatites within the Paleoproterozoic Birimian greenstone belt. These pegmatites are classified into lithium-poor and lithium-rich types.
Elhadji Mory Traore +5 more
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The architecture and chemistry of a dug-out : the Dufuna canoe in ethno-archaeological perspective [PDF]
, 2006 This research work emanated from a joint research project between the Johann-Wolfgang Goethe-University Frankfurt am Main, Germany and the University of Maiduguri, Nigeria; as outlined in the Bilateral Agreement of July 21st 1988.1 The research program ...
Garba, Abubakar
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GeosciencesThis study is carried out to investigate the radiological characteristics and mineralogical controls of natural radioisotopes (238U, 226Ra, 232Th, and 40K) in granitic pegmatites from Abu Zawal Area (AZA) in the Eastern Desert of Egypt.
Mohamed M. Ghoneim +7 more
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Partial melting of amphibolite to trondhjemite near Ykutat, Alaska [PDF]
At Nunatak Fiord, 55 km NE of Yakutat, Alaska, a uniform layer of Cretaceous metabasalt approximately 3 km thick was metamorphosed to amphibolite facies and locally partially melted to trondhjemite pegmatite.
Barker, F.
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Учёные записки Казанского университета: Серия Естественные науки, 2018 In the course of a long-term field research within the borders of the Turkestan Range located in the southwestern part of Kyrgyzstan (high-altitude Tien Shan), pegmatite veins of a rare-metal genetic type have been found.
V.K. Gerasimov +3 more
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