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Ferromanganese crusts and phosphorites from the Rio Grande Rise

Grant number: 18/05114-8
Support type:Scholarships in Brazil - Doctorate
Effective date (Start): March 01, 2019
Effective date (End): October 31, 2022
Field of knowledge:Physical Sciences and Mathematics - Oceanography - Geological Oceanography
Principal researcher:Luigi Jovane
Grantee:Mariana Benites
Home Institution: Instituto Oceanográfico (IO). Universidade de São Paulo (USP). São Paulo , SP, Brazil
Associated research grant:14/50820-7 - Marine ferromanganese deposits: a major resource of E-tech elements, AP.TEM
Associated scholarship(s):20/13258-0 - Geochemistry of ferromanganese crusts from a range of locations and water depths in the Rio Grande Rise, South Atlantic Ocean, BE.EP.DR   19/15587-3 - Formation of ferromanganese crusts and history of phosphatization in the Rio Grande Rise, BE.EP.DR


Ferromanganese crusts and phosphorites are commonly found at oceanic rises and are highly enriched in trace and rare earth elements. However, the environmental conditions for one to form are totally different and almost opposite from the other. The aim of this work is to evaluate the formation of both deposits in the Rio Grande Rise, a poorly studied rise in the South Atlantic Ocean near Brazil. In order to do so, a range of analytical techniques will be applied to understand their structure, mineralogy, chemical and isotopic composition and age. The bulk chemistry will be characterized, as well as the individual layers chemistry in order to create an evolutionary model of the geochemical environment of Rio Grande Rise. This work is included in the project FAPESP 14/50820-7, "Marine ferromanganese deposits: a major resource of E-tech elements", and will highly important for the presence of Brazilian works in the RGR. (AU)

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
BENITES, MARIANA; HEIN, JAMES R.; MIZELL, KIRA; BLACKBURN, TERRENCE; JOVANE, LUIGI. Genesis and Evolution of Ferromanganese Crusts from the Summit of Rio Grande Rise, Southwest Atlantic Ocean. MINERALS, v. 10, n. 4 APR 2020. Web of Science Citations: 0.

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