扬子板块与华南板块对接带萍乡区段构造特征

扬子板块与华南板块对接带由江西中部通过,其中萍乡地区自燕山运动末期以来,在北部以逆冲推覆作用为主,形成了大规模的逆冲推覆构造,南部在重力滑脱作用下,形成变质-岩浆热穹隆和一系列滑褶构造带及滑块构造,中部则形成相互叠覆的南、北构造对接带。在这些推、滑覆体之下多处掩覆了含煤岩系,这为寻找隐伏煤田开辟了一个新天地,同时,南、北构造对接带也是钴多金属矿有利的成矿区段。 

TECTONIC CHARACTERISTICS IN THE PINGXIANG AREA IN THE JUNCTION BELT BETWEEN THE YANGTZE PLATE AND SOUTH CHINA PLATE

The junction belt between the Yangtze plate and South China plate passes central Jiangxi.Since the end of the Yanshanian movement,nappe-thrusting predominated in the northern part of the Pingxiang area in the junction belt,forming large-scale thrust nappe structure,in its southern part a metamorphic-magmatic thermal dome and a series of glide fold zones and glide block structures formed under the action of gravitational gliding;and in the central part the junction belt of the stacked southern and northern structures formed.Coal measures are covered by these thrust nappes and glide nappes in many areas.This opens up a new sphere for looking for hidden coal fields.Furthermore,the junction belt is also a favorable cobalt polymetallic ore region.