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凭祥逆冲推覆构造是广西境内首次在上古生界地台盖层中发现的大型叠瓦状逆冲推覆构造.长度>30km,总体走向25°~40°,断面倾向南东,倾角20°~30°,逆冲方向307°~310°,分带特征明显.经平衡剖面复原计算其缩短率 e=-33.3%,相对长度比εγ=66.7%,推覆距离>5600.形成时代为印支-燕山 期,属前展式板内隆缘型逆冲推覆构造,形成模式为冲断-推覆成因.该构造的发现对认识桂西-桂西南地区的地质构造演化与金矿找矿都具有重要意义。
Pingxiang thrust nappe structure is the first large-scale imbricate thrust nappe structure discovered in the Upper Paleozoic platform cover in Guangxi. Its length is more than 30km, and the general trend is 25 ° -40 °. The section is inclined to the south, the dip angle is from 20 ° to 30 °, and the thrusting direction is from 307 ° to 310 °. The zoning characteristics are obvious. The shortened rate e = -33.3%, the relative length ratio εγ = 66.7% and the pushback distance> 5600 were calculated by reconstructing the balance section. The formation of the Indosinian-Yanshanian period is a fore-thrust plate thrusting nappe structure, and the formation model is thrust-nappe formation. The discovery of this structure is of great significance in understanding the geological tectonic evolution and ore prospecting in the west of GuiXi-southwestern China.