ELECTRICAL CHARACTERISTICS OF THE HEFEI BASIN

The electrical data of the Hefei Basin revealed that a) the caprock resistivity of the basin is lower on the whole, E and K are low-resistance strata, and the Jurassic is relative high-resistance strata; b) the electrical properties of basements are greatly different: the Upper Paleozoic which is widely developed in the southern part of the basin is low-resistance strata,the Lower Paleozoic is relative high-resistance strata, and the Proterozoic and other old strata are high-resistance strata; c) a near-WE distributed and uplift-depression alternated structural system was formed in the basin through many times of NS compression and extension during the Indosinian and Yanshanian periods, and a EN structural zone was developed in the Himalayan period along with the activation of the Tanlu Faulted Belt; d) near the Shucheng Fault is the conjoint belt of the Dabie Block and the North China Platform with the North China Platform subducting under the Dabie Block; e) the Upper Paleozoic sedimentary basin which might be covered under the nappe on the southern side of the basin may be of important geological significance in the oil and gas exploration.