Experimental Study on Physical Characteristics of Deep Rocks at Different Depths in Songliao Basin

Table 1

Mineral composition and relative mass content of rocks at different depths.

Depth (m)	Epidote (%)	Quartz (%)	Potassium feldspar (%)	Plagioclase (%)	Iron dolomite (%)	Calcite (%)	Chlorite (%)	Illite (%)
4900	0.0	19.7	1.8	39.7	0.0	17.1	6.4	15.3
5400	0.0	39.5	0.0	35.1	0.0	0.9	7.9	16.7
5700	0.0	14.2	1.4	61.2	0.0	0.5	8.0	14.7
6000	0.0	23.3	1.1	43.0	0.0	1.8	22.9	7.9
6250	0.0	32.2	0.0	32.5	0.0	7.9	11.9	15.5
6500	11.0	42.9	1.0	19.1	0.0	9.3	11.2	5.5
6700	0.0	24.1	2.2	31.1	0.0	26.9	7.2	8.5
6830	0.0	9.7	6.0	20.1	2.4	19.3	33.3	9.3