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

Tidspunkt

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

Abstract

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!