 | | Report (issue) | | Industrial minerals in developing countries: British Geological Survey/Association of Geoscientists... Industrial minerals in developing countries: British Geological Survey/Association of Geoscientists...1999, Geochemical characteristics of Cretaceous carbonatites from Angola: Journal of African Earth Sciences... Industrial minerals in developing countries: British Geological Survey and Association of Geoscientists...285, p. 77-83. Argentina National Mining Secretariat, 1994, Mining Investment in Argentina: Directory |  | | Book | | impression 1989 Third impression 1991 Reprinted 1992 British Library Cataloguing in Publication Data Hall, Anthony...Trachytes and phonolites 418 12 Nephelinites and carbonatites 439 13 Kimberlites and ultrapotassic igneous...of basalt were erupted in the Miocene in the Columbia River province to the east. Andesite volcanism did...Lengai, the only volcano known to have erupted carbonatite lava in historic time. In the Western Rift valley...the only ones to erupt in the mainland USA and Canada, but there are in fact many other Recent volcanoes |  | | Journal (article/letter/editorial) | | Hakkou 1,2 and Mostafa Benzaazoua 1,3 1 2 3 * Mining Environment and Circular Economy (EMEC), Mohammed...Boulevard de l’Université, Rouyn-Noranda, QC J9X5E4, Canada Correspondence: yassine.taha@um6p.ma Received:...deposits occur in Russia, Brazil, South Africa, Canada, and Finland with grades ranging between 4% and...replenishing source of phosphorus. They occur in carbonatite and alkaline igneous rocks. Altered or disintegrated...China Sedimentary (marine, weathered), Igneous (carbonatite/alkalic), Metamorphic, Guano Collophane, fluorapatite |
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