We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Mineralogical and Geochemical Characterization of Gold Bearing Quartz Veins and Soils in Parts of Maru Schist Belt Area, Northwestern Nigeria.
- Authors
Oke, Samson Adeleke; Abimbola, Akinlolu Festus; Rammlmair, Dieter
- Abstract
Epigenetic, N-S, NNE-SSW quartz veins crosscut metapelites and metagabbro in Maru area. The objectives of this work were to study field, mineralogy, and geochemical characteristics of gold bearing quartz veins and soils. Euhedral and polygonal magnetite with hematite constituted the major ore minerals. Quartz occurred as main gangue phase with appreciable sericite and chlorite. The mineralogy of soil retrieved from twelve minor gold fields examined with X-ray diffraction is quartz ± albite ± microcline ± muscovite ± hornblende ± magnetite ± illite ± kaolinite ± halloysite ± smectite ± goethite ± vermiculite ± chlorite. The concentration of gold in quartz vein varies from10.0 to 6280.0 ppb with appreciable Pb (3.5-157.0 ppm) and SREE (3.6 to 82.9ppm).Gold content in soil varies from < 5.0 to 5700.0 ppb. The soil is characterized by As ± Sb gold's pathfinder geochemical association. Multidata set analysis revealed most favourable areas for gold. Possibility of magmatic fluids as part of ore constituents is feasible due to presence of several intrusions close to quartz veins. Based on field, mineralogical, and geochemical evidences, ore fluids may have been derived fromfracturing, metamorphic dewatering, crustal devolatilization of sedimentary, gabbroic protoliths, and emplaced in an orogenic setting.
- Subjects
NIGERIA; QUARTZ; SOIL chemistry; GEOCHEMISTRY; MINERALOGY
- Publication
Journal of Geological Research, 2014, p1
- ISSN
1687-8833
- Publication type
Article
- DOI
10.1155/2014/314214