Physical and Mechanical Properties of Deep Oceanic Sediments Cored from the Bottom of Challenger Deep, Mariana Trench

Figure 12

The preparation process of observation soil sample. (a) The deep-sea soil samples were frozen with liquid nitrogen. (b) The undisturbed fresh structural surfaces can be obtained by breaking off the freeze-dried samples. (c) The observed fresh sediment samples were moved to the sample table and dried. (d) Carbon was sprayed onto the sediment surfaces.

(a)

(b)

(c)

(d)