Abstract:To understand the electrical structure and geological structural characteristics of the Jingerquan region, eastern Tianshan, and to provide electrical evidence for its metallogenic mechanism, a magnetotelluric sounding profile was completed in the Jingerquan region, eastern Tianshan. A reliable electrical structure model was obtained by three-dimensional inversion. The results revealed that:(1)The shallow part of Kangur-Huangshan ductile shear zone has a high conductivity thin layer, under the strong ductile shear deformation, the shallow surface rock layer may be relatively broken and loose, thus endowed with fluids.(2)The Yamansu Fault provides a channel for fluid transport to depth, causing the fracture to exhibit high conductivity anomalies below it.(3)The mineralization model of the Hulu copper-nickel sulfide deposit is consistent with the magma channel mineralization model, where the Kangur Fault provides a channel for upward intrusion of the mantle-derived magma, and the magma carrying copper-nickel sulfides undergoes gravitational subsidence and aggregation mineralization at the channel turn, magma house or dilatation site; It is speculated that there may be basic rocks rich in sulfide at the depth of 2 km, suggesting that there may be Cu-Ni metallogenic potential in the depth.