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PIXE analysis of muscovite samples from tourmaline bearing granite pegmatites of Southwestern Nigeria |
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| Authors: | O A Ige O A Ige O A Ige S O Olabanji S O Olabanji S O Olabanji D Ceccato D Ceccato D Ceccato |
| Institution: | 12201. Natural History Museum, Obafemi Awolowo University, Ile-Ife, Nigeria 12202. Natural History Museum, Obafemi Awolowo University, Ile-Ife, Nigeria 12203. Natural History Museum, Obafemi Awolowo University, Ile-Ife, Nigeria 12204. Centre for Energy Research and Development , Obafemi Awolowo University; National Institute for Nuclear Physics (INFN), National Laboratories of Legnaro (LNL), Ile-Ife, Nigeria; Viale dell'Universit? 2, 35020 Legnaro Padua, Italy 12205. Centre for Energy Research and Development , Obafemi Awolowo University; National Institute for Nuclear Physics (INFN), National Laboratories of Legnaro (LNL), Ile-Ife, Nigeria; Viale dell'Universit? 2, 35020 Legnaro Padua, Italy 12206. Centre for Energy Research and Development , Obafemi Awolowo University; National Institute for Nuclear Physics (INFN), National Laboratories of Legnaro (LNL), Ile-Ife, Nigeria; Viale dell'Universit? 2, 35020 Legnaro Padua, Italy 12207. National Institute for Nuclear Physics (INFN), National Laboratories of Legnaro (LNL), Viale dell'Universit? 2, 35020 Legnaro Padua, Italy 12208. National Institute for Nuclear Physics (INFN), National Laboratories of Legnaro (LNL), Viale dell'Universit? 2, 35020 Legnaro Padua, Italy 12209. National Institute for Nuclear Physics (INFN), National Laboratories of Legnaro (LNL), Viale dell'Universit? 2, 35020 Legnaro Padua, Italy |
| Abstract: | Summary Muscovites from pegmatite bodies from southwestern Nigeria have been characterized by PIXE. The chemical analysis reveals that in these muscovites, the interlayer sites are occupied mainly by K, Fe, Rb Na, and traces of Mg and Ca in the octahedral positions whilst Si, Al, Ti Mn occur in the tetrahedral ones. The low Na/(Na+ K) ratios, low Ti content and enrichment in Rb in the muscovite suggest postmagmatic genesis of the host rocks. The variability in trace element composition may reflect differences in geological environment of emplacement of the pegmatite bodies. |
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