The different effects in medium-field and far-field of the Pacific plate subduction: revealed by magnetotelluric imaging at the eastern segment of the Central Asian Orogenic Belt

<p>The&nbsp;long-period magnetotelluric sounding profile&nbsp;with the length of 1500 km crossed major&nbsp;geological tectonic units in Northeast China,&nbsp;including&nbsp;the Erguna&nbsp;block, the Xing&#39;an block, the Songnen block, and&nbsp;the Jiamusi block. MT data were recorded at 81 stations, with an&nbsp;average site spacing of 20&nbsp;km</p>