Effects of Cyclic Loading on the Mechanical Properties of Mature Bedding Shale

Table 1

The mineral compositions of shale rocks.

	Montmorillonite	Illite	Quartz	Cristobalite	Albite	Calcite	Muscovite	Pyrite	Annite	Ankerite
Shale	1.66	3.60	50.23	4.75	17.60	2.60	5.71	5.80	3.83	4.21