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Magnetic Methods Applied to Map Volcanic Rocks, Magnetic Lineaments and Domain in Araguaia Belt and Parnaiba Basin
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 3rd Latin American Geosciences Student Conference, Jul 2015, Volume 2015, p.1 - 7
Abstract
Summary
The study area includes the eastern portion of the Neoproterozoic Araguaia Fold Belt and the western edge of the Paleozoic Parnaíba Basin in N Brazil. The Araguaia Belt comprises an extensive sequence of metasedimentary and igneous rocks. Intrusive and extrusive igneous rocks (dykes and sills) occur within the sedimentary sequences of Parnaíba Basin. Then, this paper presents a geophysical study to map the huge magmatic manifestations which occur in western border of the Parnaiba basin (Mosquito Formation), volcanic rocks in the eastern border of Araguaia Belt and magnetic lineaments and domain in those areas, based on airborne magnetic data.
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