晚二叠世甘肃北山南带中段走滑隆升与拉分拗陷作用

详细信息

收稿日期: 1993-03-05

刊出日期: 1993-12-31

UPPER PERMIAN STRIKE-SLIP UPWARPING AND PULL-APART DOWNWARP OF LEAVE AREA IN BAISHAN SOUTH, GANSU

Received Date: 05 March 1993

Publish Date: 31 December 1993

摘要: 晚二叠世，处于板内活动中后期的北山南带中段地区，发生规模宏大的左旋位移走滑断裂作用。花牛山-五峰山和黄尖丘-新场两地区形成正性的走滑隆升区，其相应中间地带则显示了负性拉分拗陷作用，发育了大奇山拉分盆地。走滑隆升地区走滑型剪切带发育，为剪切带型的金矿成矿带。拉分盆地以巨厚火山-磨拉石建造为特征，沉积环境为陆相-海相-海陆混合相。
- 北山 /
- 走滑隆升 /
- 拉分拗陷
Abstract: Upper Permian, large scope strike-slip rift faulting of sinistral rotation displacement happied in Level area of Baishan South in intraplate middle, late active age during Upper Permian. Huanushan-Wufenshan and Huangjianqiu-Xinchang formed positive strike-slip upwarping region, middle belt shown negative down warping, developed Daqishan pull-apart basin. Strike-slip u warping region had well-developed strike-slip type shear zone, it was a shear zone type mineralization belt of golden deposit. Pull-apart basin representative product was volcanic-molasse formation, depositional environment was continental faciesmarine facies-marine, continental mixed fades.
- Beishan /
- stilke-slip uplift /
- pull-apart downwarp