Experimental calcite dissolution under stress: Evolution of grain contact microstructure during pressure solution creep

Given that the solubility of calcite in a NH 4 Cl solution is 700 times lower than that of halite, that the rate of calcite indentation should also be slowed down by a factor of

98 To verify this hypothesis, a methodology similar to the one followed for the first section of tests will be applied: Experiments will be carried out with a specimen whose width

The wear of coating facing the trailing edge has a prominent 7-lobes wave and the last phase of blade dynamic response is a 7-bending motion.. A comparison of the

(b) Various driving forces revealed by the shape of indented holes: effect of the difference in normal stresses between the indenter contact and the surrounding free fluid shown by

Pressure solution creep is a stress-driven mass transfer process (Fig. 4a) that involves three kinds of parameters that will be described in more detail in Sections 3 and 4, but

These data, showing the reduction in porosity with deformation (ε), are used for permeability calculations (salt in light grey, pores in dark, grain-pore interface in red).

The samples of halite and calcite powder were compacted in a transparent Plexiglas cell (internal diameter 6 mm). The vertical stress was imposed by a screw and transmitted through

sequential coupling between chemical processes (dissolution at grain contacts, diffusion, and precipitation on free pore surfaces) and the mechanical evolution (deformation of the