IDEAN   23403
INSTITUTO DE ESTUDIOS ANDINOS "DON PABLO GROEBER"
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Numerical modelling of the thermal evolution of oceanic lithosphere
Autor/es:
ZLOTNIK SERGIO; LIKERMAN, J.
Lugar:
Barcelona
Reunión:
Workshop; MATHEMATICAL AND COMPUTATIONAL MODELLING ON THE EARTH; 2019
Institución organizadora:
UPC
Resumen:
Curie point depth can be used as a proxy for plate temperatures. Data from the North Atlantic is used here to determine if the observed oscillations and patterns in Curie depths could be a sub product of small-scale thermal instabilities arising at the bottom of the lithospheric plates. Our results suggest that small-scale convection (SSC) cells could produce thermal perturbations at isotherms as low as the Curie point. These results are compatible with North Atlantic observations in terms of wavelengths (150 to 300 km), amplitudes (~4 km) and orientations of the instabilities. Observed Curie point depth oscillations before the onset of SSC might be a consequence of varying degree of serpentinization related to the changes in the spreading rate.