Weathering Processes and Mechanisms of Low-Grade Metamorphic Rock following Freeze-Thaw Processes

Table 2

SEM parameters of the low-grade metamorphic rock samples.

Samples	Number of F-T cycles	Particle size (μm)	Porosity (%)	Pore width (μm)
Slate	0	6-15	15-20	3-5
	5	10-20	18-25	6-8
	10	10-20	18-25	6-8
	20	15-20	20-30	6-8
	30	20-25	25-30	10-15
Phyllite	0	4-10	10-15	1-3
	5	6-10	12-20	2-6
	10	6-10	12-20	2-6
	20	8-15	15-25	5-10
	30	10-18	15-25	8-12