Jaime Almeida

Profile

Research Group: RG3 – Solid Earth dynamics
Position at IDL: Researcher
Job: PhD Researcher
Email: jealmeida@fc.ul.pt 
Room: 8.3.20b 
Academic Degree and field of specialization: 

BSc – Geologia, Faculdade de Ciências da Universidade de Lisboa (2010-2014)

MSC – Geology, Uppsala University (2014-2016)

Currently working on my PhD on modelling subduction initiation by polarity reversal using state-of-the-art numerical modelling codes (Underworld and LaMEM).

Scientific Informations

ORCID: https://orcid.org/0000-0003-1948-3201

Scientific Interests

Main Interests: 

My main field of work is performing HPC-based (High Performance Computing) numerical modelling of subduction initiation.

The phenomenon is still widely controversial and represents a missing link in the Wilson Cycle, i.e. the portion of the cycle that describes the cessation of oceanic lithosphere expansion and initiation of the consumption of the ocean.

As there are several possible mechanisms for subduction initiation (Stern, 2004, 2018), I chose polarity reversal as the most favourable to take place (Stern, 2004; Gurnis, 2004)  and more interesting to model.

Top 10 Publications: 

Master Thesis:

Almeida, J. (2016). Kinematic Evolution of aTranscurrent Fault Propagating Through Consecutive Volcanic Cones:a Case of Rheology and Separation (Dissertation).

Scientific journals and procedings:

Gomes AS, Rosas FM, Duarte JC, Schellart WP, Almeida J, Tomás R, Strak V (2019) Analogue modelling of brittle shear zone propagation across upper crustal morpho-rheological heterogeneities, Journal of Structural Geology, 126, 175-197. DOI: 10.1016/j.jsg.2019.06.004

F. M. Rosas, P. Terrinha, J. Duarte, L. Baptista, C. Kullberg, J. Almeida, F. Barata, B. Carvalho, V. Grigorova, R. Tomás, P. Almeida (2014). Analog modelling of strike-slip fault (lateral) propagation from an elastic to a viscous medium: insights from trial experiments. Comunicações Geológicas, 101 (volume especial III): 1429-1432 (ISSN: 0873-948X; e-ISSN: 1647-581X).

R. Tomás, F.M. Rosas, J.C. Duarte, P. Terrinha, M.C. Kullberg, J. Almeida, F. Barata, B. Carvalho, P. Almeida, 2015. Analogue modelling of strike-slip fault propagation across a rheological/morphological crustal anisotropy: implications for the morphotectonic evolution of the Gloria Fault – Tore Madeira Rise area in NE Atlantic. Geophysical Research Abstracts, Vol. 17, EGU General Assembly 2015.

F. M. Rosas, J. Almeida, F. Barata, B. Carvalho, P. Terrinha, J. Duarte, C. Kullberg and R. Tomás, 2014. Exploratory analog modeling of the effects of a morpho-rheological obstacle across a wrench fault system: the example of the Gloria Fault – Tore Madeira Rise intersection in NE Atlantic. GeoMOD (Postdam, August 2014).

F.M. Rosas; P. Terrinha; J. Duarte; L. Baptista; C. Kullberg; J. Almeida,F. Barata; B. Carvalho; V. Grigorova; R. Tomás and P. Almeida, 2014. Analog modeling of strike-slip fault (lateral) propagation from an elastic to a viscous medium: insights from trial experiments. IX CNG (Oporto, July, 2104)

Conferences (last 15 presentations): 

EGU2018

Preliminary numerical modelling results of induced subduction initiation: the slab vs. overriding plate thermal control on subduction polarity flip
Jaime Almeida, Nicolas Riel, Filipe Rosas, and João Duarte

EGU2019

Numerical modelling of induced subduction initiation: thermal control exerted by plate ages in polarity reversal during plateau docking (Jaime Almeida, Nicolas Riel, Filipe Rosas, and João Duarte)

RELiCT (2019)

Subduction Initiation by Polarity Reversal

Jaime Almeida, Nicolas Riel, Filipe Rosas, and João Duarte