The law of Layer Control to the Water-bearing Characteristics of Ordovician Carbonate in Tong-Pei Coal Field

The Law of Layer Control to the Water 一bearing Characteristics of of Ordovician Carbonate in Tong-Pei Coal Field-This paper discusess the control of lithologic characters to water-hearing characteristics of Ordovician carbonate in Tong-Pei coal field and the Ordovician carbonate can be classified in to eight water--bearing members.