新疆喀喇昆仑地区甜水海岩群发现青白口纪叠层石  

The Qingbaikouan stromatolites from the Tianshuihai Group Complex in the Karakorum region, Xinjiang

作　　者：崔建堂[1] 王炬川 边小卫 彭海练 杨克俭 朱海平 

机构地区：[1]陕西省地质调查院咸阳区调所

出　　处：《沉积与特提斯地质》2005年第1期194-197,共4页Sedimentary Geology and Tethyan Geology

基　　金：1:2 5万<康西瓦>;<岔路口>等 4幅区域地质调查项目 (2 0 0 31 30 0 0 0 0 3)

摘　　要：2 0 0 3年在对新疆喀喇昆仑地区原划长城系甜水海岩群进行地质填图及实测剖面的工作中,采集到了大量叠层石化石,时代为新元古代青白口纪。该群岩石变形非常强烈,变质达绿片岩相。本次区调依据其岩石变形变质特征,结合叠层石化石资料,对其形成时代进行了重新厘定。Abundant stromatolite fossils were collected in 2003 from the Tianshuihai Group in the Karakorum region, Xinjiang. These fossils may be traced back to the Qingbaikouan of the Neoproterozoic. The Tianshuihai Group Complex appears as the oldest strata in the Karakorum region, and was previously assigned to the Changchengian strata. The rocks from the Group Complex have been highly metamorphosed into the green schist facies. The fossils data, deformatim and metamorphism allow the relineation of the studied strata into the Tianshuihai Group Complex.

关 键 词：喀喇昆仑 甜水海岩群 青白口系 叠层石 新疆 

分 类 号：P534.3[天文地球—古生物学与地层学]