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| Books | Books |
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| Books | Books |
 All these belts again comprise single volcanic cycles from basal basic lavas up into more felsic pyroclastics. Both bimodal and calc-alkaline volcanic sequences are recognized. Bimodal assemblages are found in the basal parts of younger belts and contain...  Geological Atlas of Africa: With Notes on Stratigraphy, Tectonics, Economic ... - Page 15 by Thomas Schlüter - 2008 - 307 pages Limited preview -
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