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Dr Joao Motta

Postdoctoral Research Fellow

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I am a Postdoctoral Research Fellow with the Camborne School of Mines since August 2021.

Member of the NL4D project funded by Anglo American on the Northern Limb of the Bushveld Complex.

Training

  • Geologist (Sao Paulo State University, Brazil, 2011)
  • MSc (Sao Paulo State University, Brazil, 2015)
  • PhD (University of Campinas, Brazil, 2020)
    • Research intern (Monash University, Australia, 2017, 2018-2019)

 

Professional experience

  • Exploration geologist - greenfield projects (Yamana Gold INC. 2012-2013)
  • Technical reviewer for exploration and research reporting (consultant, 2013-present)
  • Postdoctoral Fellow (Universidade do Vale do Rio dos Sinos, Brazil, 2020-2021)

 

Research interests

  • Applied machine learning for exploration and geoscience.
  • Geophysical exploration.
  • Geological modelling and deep-crust controls on minerals distribution.
  • Tectonics and planetary evolution.
  • Computer vision applied to geosciences.

 

Geological objects of interest

  • Cratons
  • Accretionary orogens
  • Greenstone belts
  • Mafic-ultramafic intrusions and PGE-base metal systems
  • Iron Oxide-Copper-Gold metal systems
  • Orogenic Gold metal systems
  • Porphyry Copper systems

 

Digital footprint

Personal website

Researchgate profile

Google Scholar profile

 

Publications

2021

Trevisan, V. G., Hagemann, S. G., Loucks, R. R., Xavier, R. P., Motta, J. G., Parra-Avila, L. A.,  Petersson, A., Gao, J., Kemp, A. I. S., Assis, R. R. (2021) Tectonic switches recorded in a Paleoproterozoic accretionary orogen in the Alta Floresta Mineral Province, southern Amazonian Craton. Precambrian Research, Volume 364,106324, https://doi.org/10.1016/j.precamres.2021.106324.

Bosco-Santos, A., Gilhooly III, W.P., de Melo-Silva, P., Fouskas, F., Bouyon, A., Motta, J. G., Baldim, M. R., Fabricio-Silva,  W., Philippot,P., Oliveira, E. P. (2021) Neoarchean atmospheric chemistry and the preservation of S-MIF in sediments from the São Francisco Craton. Geoscience Frontiers, 101250, https://doi.org/10.1016/j.gsf.2021.101250.

Kunifoshita, A. M., dos Santos, F. H., Motta, J. G. (2021) Reconstruction of the effusive and explosive deposits of the Aruri and Salustiano formations in the Tapajós Domain, Southern Amazonian Craton, from field relationship, petrography and geochemistry. Journal of South American Earth Sciences, 107, 103095. https://doi.org/10.1016/j.jsames.2020.103095

2020

Prado, E. M.G., Souza Filho, C. R., Carranza, E. J. M.,& Motta, J. G. (2020). Modeling of Cu-Au Prospectivity in the Carajás mineral province (Brazil) through Machine Learning: Dealing with Imbalanced Training Data. Ore Geology Reviews, 103611. https://doi.org/10.1016/j.oregeorev.2020.103611

2019

Motta, J. G., Souza Filho, C. R., Carranza, E. J. M., & Braitenberg, C. (2019). Archean crust and metallogenic zones in the Amazonian Craton sensed by satellite gravity data. Scientific Reports, 9(1), 2565. https://doi.org/10.1038/s41598-019-39171-9

Motta, J. G., Betts, P. G., de Souza Filho, C. R., Thiel, S., Curtis, S., & Armit, R. J. (2019). Proxies for Basement Structure and Its Implications for Mesoproterozoic Metallogenic Provinces in the Gawler Craton. Journal of Geophysical Research: Solid Earth, 124, 17. https://doi.org/10.1029/2018JB016829

2017

Motta, J. G., Morales, N., Malagutti Filho, W. Geophysical perspective on the structural interference zone along the Neoproterozoic Brasília and Ribeira fold belts in West Gondwana. Brazilian Journal of Geology, v. 47, p. 3-19, 2017. https://doi.org/10.1590/2317-4889201720160144

Galhardi, J. A., García-Tenorio, R., Bonotto, D. M., Díaz Francés, I., Motta, J. G. Natural radionuclides in plants, soils, and sediments affected by U-rich coal mining activities in Brazil. Journal Of Environmental Radioactivity, v. 177, p. 37-47, 2017. https://doi.org/10.1016/j.jenvrad.2017.06.001

2016

Motta, J. G., Faria Junior, I. R. A mineral potential mapping approach for supergene nickel deposits in southwestern São Francisco Craton, Brazil. Brazilian Journal of Geology, v. 46(2), p. 261-273, 2016. https://doi.org/10.1590/2317-4889201620160021

Feltrin, L., Motta, J. G., Al-Obeidat, F., Marir, F., Bertelli, M. Combining Weights of Evidence Analysis with Feature Extraction - A Case Study from the Hauraki Goldfield, New Zealand. Procedia Computer Science, v. 83, p. 1262-1267, 2016. https://doi.org/10.1016/j.procs.2016.04.262