Objectives :
Test the geochemistry of the fluid to be used for percolation experiments.

Description of planned work :
Batch experiments in autoclave will be performed at 150°C on powder grinded from unaltered Nojima protolith to estimate the products of alteration reactions suspected to occur in Nojima, according to WP1. Several saturating fluids will be tested. XRD analysis will be performed on the output powder to identify the products of reaction.
Once the target reactions are validated, several experiments will be conducted with temperature in the range 100°C-200°C to assess the thermodynamics of the reactions.

Updated on 1er avril 2024