Main Controlling Factors and Formation Mode of Geothermal Anomaly in Eastern Chenghe Mining Area of Weibei Coalfield

Table 1

Statistics of thermal conductivity of rock samples.

Hole number	Depth/m	Serial number	Lithology	Thermal conductivity W/m·°C
XC1	136-138	XC1-1	Fine sandstone	2.41
	178-181	XC1-2	Medium sandstone	2.72
	338-340	XC1-3	Sandy mudstone	2.89
	345-347	XC1-4	Coarse sandstone	3.60
	493-496	XC1-5	Sandy mudstone	4.14
	509-511	XC1-6	Siltstone	4.59
	524-525	XC1-7	Fine sandstone	3.43
	558-570	XC1-8	Mudstone	2.63
	571-579	XC1-9	Fine sandstone	4.12
	587	XC1-10	Mudstone	3.06
	604	XC1-11	Sandy mudstone	5.07
XC2	127-130	XC2-1	Sandstone	4.12
	145-148	XC2-2	Sandy mudstone	2.24
	154-157	XC2-3	Fine sandstone	3.98
	162-163	XC2-4	Mudstone	2.79
	280-290	XC2-5	Sandy mudstone	3.75
	334-340	XC2-6	Medium sandstone	3.99
	406-409	XC2-7	Fine sandstone	2.24
	415-418	XC2-8	Medium sandstone	3.98
	421-424	XC2-9	Mudstone	2.79
	436-439	XC2-10	Fine sandstone	3.29
	442-444	XC2-11	Mudstone	2.56
	465-470	XC2-12	Mudstone	1.95
	455-456	XC2-13	Mudstone	3.71
	473-475	XC2-14	Mudstone	2.99