Institute: Jadavpur University
Title: PhD Research Scholar
Country/Region: India
Period: 2023/03/01 ～ 2024/02/29
Theme: CPO development during diffusion creep of two-phase crystalline aggregates: insights from high temperature rock deformation experiments
Host: Takehiko HIRAGA
Introduction: I pursued my PhD from the Department of Geological Sciences, Jadavpur University, India. As a researcher, I am a structural geologist and an analogue modeler, with an added interest on geological field study. Mostly I prefer to work on experimental modelling of different geological processes focusing on rock deformation. Before joining ERI, in course of my PhD thesis, I worked on several aspects of strain localization with a special focus on shear surface roughness and shear band localization. A part of my doctoral thesis dealt with analogue experimental modelling using sand-talc mixture and investigate the effects of varying rheology and initial weak zone orientation on the shear surface roughness properties. Combining with extensive field studies and 1D fractal dimension analysis, my work proposed a unique type of shear surface roughness and established mechanical instability as its potential forming mechanism. Another part of my PhD thesis was aimed at understanding the effects of mechanical heterogeneities in shear band localization pattern. By using rock analogue materials my work shows that presence of mechanical heterogeneities, combining with the applied strain rate, in a system can influence the type and pattern of shear band formation from homogenously distributed sharp to localized complex composite type of shear bands.
Here at ERI, I shall work in collaboration with Prof. Takehiko Hiraga to investigate the physical properties of Earth’s interior by studying the diffusion creep behavior and CPO development of polycrystalline aggregates of rock-forming minerals, primarily focusing on two phase aggregates of Diopside + Anorthite and Diopside + Forstertite. This will be done by high temperature rock deformation experiments followed by SEM analysis. As a bonus, I am also looking forward to interact and learn from senior researchers at ERI and expecting to make my st
Fiscal Year: 2022