Degradation Characteristics and Mechanism of Black Sandy Dolomite with Fluid Added in a Mechanical Test

Table 2

Chemical composition of the samples.

Sample	SiO2	TiO2	Al2O3	K2O	MgO	Fe2O3	CaO	P2O5	Na2O	SO3	Cr2O3	BaO	LOI
1	32.83	0.13	2.17	0.52	12.85	1.44	18.30	0.06	0.16	2.27	<0.01	0.03	28.54
2	36.37	0.18	3.30	0.87	11.55	1.47	16.45	0.09	0.27	2.80	<0.01	0.05	25.64
3	32.00	0.14	2.22	0.58	12.95	1.39	18.55	0.09	0.16	2.25	<0.01	0.02	28.98
Average	33.73	0.15	2.56	0.66	12.45	1.43	17.77	0.08	0.20	2.44	<0.01	0.03	27.72