Editors: | F. Kongoli, F. Marquis, S. Kalogirou, B. Raveau, A. Tressaud, H. Kageyama, A. Varez, R. Martins. |
Publisher: | Flogen Star OUTREACH |
Publication Year: | 2022 |
Pages: | 154 pages |
ISBN: | 978-1-989820-34-6 (CD) |
ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
The main objective of this work was to analyze and understand the geological and tectonic constitution of the municipality of Algodão de Jandaíra, state of Paraíba and offer a contribution to mineral research, whether local or regional, since the municipality is inserted in the Borborema Province in northeastern Brazil, rich in industrial and metallic minerals such as tantalite/columbite, gold, scheelite, gemological minerals (beryl, marine water, tourmalines), etc. The geochemical parameters were defined using the portable X-ray fluorescence analytical instrument (p-XFR) for some major elements, traces and light rare earth (ETR-L) elements in active stream sediments, basalt vein, in pegmatite dike and quartz veins, in order to enrich the scientific literature regarding the advancement of research on mineral potential in any regions of Borborema Province. The results obtained by p-XFR, when plotted in tables and graphs, contributed to the important interpretations on ore content, geochemical associations, magmatic evolution and contribution of hydrothermalism, geological and tectonic weathering in the geochemical mobilization of the elements. Field research shows that the tectonic modeling of the rocky bodies of the studied area has a strong local structural control exercised by the Pocinhos and Casserengue shear zones. The set was the target of strong compression, stretching, boudinagem and injection of veins. Tectonic reactivations of extensional character were responsible for the production of open fractures, orthogonal to the regional trend, allowing the intrusion of basalt veins, modeling the drainage pattern and generating vertical walls that served as a panel for rock art, with prehistoric paintings made by ancestors, such as the pedra da letra in the passagem river. The studies culminated in the preparation of the Course Completion Work.