摘要
通过层序地层学的划分与对比,将塔中地区寒武—奥陶系划分出8个超层序.其中寒武系包含3个超层序,奥陶系包含5个超层序,下奥陶统2个,中上奥陶统3个.塔中地区寒武—奥陶系沉积相具有典型的分层结构,沉积相在纵向演化上,由下部的蒸发台地、局限台地相、开阔台地相,向上变为台地边缘相、浅水陆棚相、混积陆棚相及斜坡相,代表了海水向上持续增深过程.
According to division and comparison of sequence stratigraphy, the Cambdan-Ordovician in the center of Tarim can be divided into 8 super sequences in which 3 super sequences are in Cambrian, 5 are in Ordovician （2 in lower Ordovician, 3 in middle-upper Ordovician）. The sedimentary facies of Cambrian-Ordovician system has typical zonation structure. The sedimentary facies evolved to margin of mesa and shelf facies gradually from evaporated platform, restricted platform, and open platform from bottom to top, which reflects ocean water deepening upward.
出处
《新疆地质》
CAS
CSCD
2006年第3期276-280,共5页
Xinjiang Geology
关键词
层序地层
沉积相
寒武—奥陶系
塔中地区
sequence stratigraphy
sedimentary facies
Cambrian-Ordovician
the center of Tarim
