摘要
新疆库鲁克塔格地区寒武系莫合尔山组的风暴沉积可以划分为Ⅰ、Ⅱ、Ⅲ三个不同级别的周期.3个Ⅱ级风暴沉积周期构成一个Ⅰ级风暴沉积周期,同时每一个Ⅱ级风暴沉积周期由几个Ⅲ级风暴沉积周期组成.发育的风暴岩类型有原地型风暴粗颗粒灰岩、异地型风暴粗颗粒灰岩、丘状交错层理灰岩和风暴浊积灰岩.在各个级别沉积周期内风暴沉积特征差异及其类型组合规律的变化,可以反映出沉积环境的变化,进而反映出各个级别风暴沉积周期对应的海平面变化.
The tempestite bearing sediments of the Moheershan formation can be divided into three orders of cycles Ⅰ、Ⅱ and Ⅲ in the Kutuktag, Xinjiang. Three of Ⅱ order cycles are made up of one I order cycle and each of Ⅱ order cycle contains several Ⅲ order cycles. There are four types of tempestite which are autochthonous coarse grain limestone, allochthonous coarse grain limestone, turbidite and hummocky cross-stratification limestone. The differences between the tempestites and the associations within each cycle can reflect the changes of environments. The cycles of tempestites ofⅠ、Ⅱ and Ⅲ orders are corresponded to the sea level changes of the certain orders.
出处
《新疆地质》
CAS
CSCD
2006年第4期377-380,I0014,共5页
Xinjiang Geology
关键词
寒武系
莫合尔山组
风暴岩
海平面变化
Cambrian
Moheershan Formation
tempestite
sea-level change
