黔东松桃地区桃子坪锰矿逆冲叠瓦状构造浅析

Simple Analysis of Thrust Imbricated Structure in Taoziping Manganese Deposit,Songtao County,East Guizhou

黔东松桃地区位于慈利—保靖断裂与鹤峰—龙山断裂的夹持区域内。区内褶皱与断裂十分发育,主要发育有NNE-SSW向断裂、线状褶皱,NE-SW向断裂、褶皱以及NW-SE向小型断裂、短轴褶皱。区内桃子坪锰矿床发育了逆冲叠瓦状构造,本文对其特征进行了简要阐述,并推测其发育于燕山期,并简要讨论了其对于锰矿体的影响作用,有利的一面如断层上盘变浅,意味着含锰岩系(锰矿体)的深度变浅,钻探深度也会变浅;不利的一面如含锰岩系(锰矿体)连续性被破坏。

Songtao area is located in the regionbetween Cili-Baojing fault and Hefeng-Longshan fault. The fold and fracture are very development,the main development are NNE-SSW to fracture,linear fold; NE-SW to fault,fold and NW-SE to small faults,short axis fold. Taoziping manganese deposit development thrust imbricated structure,briefly elaborated in this paper,its characteristics and speculated that its development in the Yanshan epoch,and finally simply discussed the effect of manganese ore body. Beneficial such as upside becomes shallow means that the manganese rock series（ manganese ore body） depth becomes shallow,drilling depth will becomes shallow; the downside such as manganese rock series（ manganese ore body）,continuity is destroyed.