摘要
云南白垩系分布在滇中、滇西和澜沧江以西三个地域 ,彼此之间被深断裂所分隔 ,它们的地质历程、构造特征各不相同。不能将澜沧江以西勐海、潞西地区的白垩系解体归属不同地层区。澜沧江以西的白垩系 ,分布于冈瓦纳古陆和古特提斯造山带的小型山间盆地 ,地层层序齐全 ,岩性、厚度稳定 ,含古生物化石。有两套岩石序列 ,三个沉积旋回。
The Cretaceous of Yunnan is distributed in Central Yunnan,West Yunnan and the area west of Lancang River.They are separated by deep fault and have different geological experience and tectonic features.The Cretaceous in Menghai,Luxi area west of Lancang River cant be dismembered and put into different stratigraphic area.The Cretaceous west of Lancang River is distributed in Gondwana and the small intermontane basin of Tethys orogen.They have complete stratigraphic sequence,stable lithological characters and thickmess and fossils,which can be divided into 2 rock series and 3 sedimentary cycles.
出处
《云南地质》
2001年第2期144-153,共10页
Yunnan Geology
