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Characterization of epidote through SEM, micro-Raman espectroscopy, differential scanning calorimetry, optical microscopy and annealing and entropy studies through fission track method

Grant number: 10/20496-2
Support type:Scholarships in Brazil - Doctorate
Effective date (Start): June 01, 2011
Effective date (End): May 31, 2014
Field of knowledge:Physical Sciences and Mathematics - Physics - Nuclear Physics
Principal Investigator:Carlos Alberto Tello Sáenz
Grantee:Wagner Massayuki Nakasuga
Home Institution: Faculdade de Ciências e Tecnologia (FCT). Universidade Estadual Paulista (UNESP). Campus de Presidente Prudente. Presidente Prudente , SP, Brazil


Mount will this project a database of epidote with different chemical compositions. The aim is to increase our knowledge of this mineral for use in the Fission Track Method (FTM).The study is important because this mineral by dating trought MTF can determine the reactivation of geological faults. Significant advances were achieved in the study of this mineral (dating and obtaining thermal histories) in our research group from the year 2000.In these previous studies we observed that this mineral has a huge potential both in terms of how phenomenological application.At the phenomenological, the end of this project aims to respond with greater accuracy, questions like: what is convenient for chemical attack which chemical composition of epidote, the variety of epidote treated in this thesis behaves the same way against the annealing, as behaves the anisotropy of the mineral and chemical attack if you can get information on the annealing of the samples through specific heat measurements. To get those answers will be used as techniques: Scanning Electron, Scanning Electron Microscopy (SEM-EDS), Micro-Raman Spectroscopy, Differential Scanning Calorimetry (DSC) and optical microscopy. Another main objective to be achieved in this project is to conduct systematic studies of the variation in entropy of the trace during the annealing process. On the application, we obtain the age and thermal history of both the samples that will be part of our database as the samples collected at fault.

Scientific publications (4)
(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)
NAKASUGA, WAGNER MASSAYUKI; TELLO SAENZ, CARLOS ALBERTO; CAMPOS CURVO, EDUARDO AUGUSTO; HADLER NETO, JULIO CESAR; GUEDES, SANDRO; RESENDE, ROSANA SILVEIRA. Novel etching protocol for epidote fission tracks. Radiation Measurements, v. 118, p. 26-30, NOV 2018. Web of Science Citations: 0.
DE SIQUEIRA, ALEXANDRE FIORAVANTE; CABRERA, FLAVIO CAMARGO; NAKASUGA, WAGNER MASSAYUKI; PAGAMISSE, AYLTON; JOB, ALDO ELOIZO. Jansen-MIDAS: A multi-level photomicrograph segmentation software based on isotropic undecimated wavelets. MICROSCOPY RESEARCH AND TECHNIQUE, v. 81, n. 1, p. 22-32, JAN 2018. Web of Science Citations: 1.
DE SIQUEIRA, A. F.; CABRERA, F. C.; PAGAMISSE, A.; JOB, A. E. Estimating the concentration of gold nanoparticles incorporated on natural rubber membranes using multi-level starlet optimal segmentation. JOURNAL OF NANOPARTICLE RESEARCH, v. 16, n. 12 DEC 2014. Web of Science Citations: 1.
DE SIQUEIRA, ALEXANDRE FIORAVANTE; NAKASUGA, WAGNER MASSAYUKI; PAGAMISSE, AYLTON; TELLO SAENZ, CARLOS ALBERTO; JOB, ALDO ELOIZO. An automatic method for segmentation of fission tracks in epidote crystal photomicrographs. Computers & Geosciences, v. 69, p. 55-61, AUG 2014. Web of Science Citations: 3.
Academic Publications
(References retrieved automatically from State of São Paulo Research Institutions)
NAKASUGA, Wagner Massayuki. Obtenção de um ataque químico padrão, zona de annealing parcial e temperatura de fechamento para o epídoto através do método dos traços de fissão. 2014. 84 f. Doctoral Thesis - Universidade Estadual Paulista "Júlio de Mesquita Filho" Faculdade de Ciências e Tecnologia..

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