Aarhus Universitets segl

GEOSCIENCE SEMINAR - Dr. Sarah Lambart, Columbia University

Crack or Clog? Experimental investigation of the pressure of crystallization and implications for in situ mineral carbonation

Oplysninger om arrangementet


Onsdag 25. marts 2015,  kl. 14:15 - 15:15


by Dr. Sarah Lambart, Lamont-Doherty Earth Observatory, Columbia University, USA:


Carbonation of peridotite may be an important sink in the global carbon cycle and in some natural systems attain 100% carbonation. One way to achieve this may be via reaction-driven cracking that maintains or enhances permeability and reactive surface area. Without reaction-driven cracking, in situ mineral carbonation could fill pore space, limiting reaction progress and leaving much of the silicate unaltered. However, the conditions most favorable for reaction-driven cracking are poorly understood. In this talk, I will present the underlying thermodynamics of the process, discuss ongoing and proposed laboratory and field simulation and consider future prospects for large-scale CO2 sequestration via fluid-rock interaction.

Coffee and cake as usual, all welcome!