摘要
淮安盐盆是苏北古湖西北端一个持续沉降的半封闭的湖湾,由于苏北盆地持续的咸水补给及干旱湿热的天气为其蒸发沉积创造了条件,张兴块段处于淮安盐盆次一级的构造单元,为巨厚的含盐系沉积。块段内含盐系韵律清晰,可划分为Ⅰ、Ⅱ、Ⅲ、Ⅳ、Ⅴ级韵律,韵律的划分对恢复古地理、地层划分及对比等都具有重要意义。
Huai＇an Salt Basin is a continuous subsiding semi-enclosed bay located at the northwestern end of Northern Jiangsu fossil lake.Continuous saline supplement,and arid and sultry weather have created conditions for the sedimentation of evaporite.Zhangxing section is located at the sub-tectonic unit of Huai＇an Salt Basin and is a hugely thick saliferous deposit. The saliferous cyclothem in the section is clear, and can be divided to Ⅰ、Ⅱ、Ⅲ、Ⅳ and Ⅴ grades of cyclothem. The eyclothem division is of great significance to restore the palaeogeography, and stratigraphic division and correlation.
出处
《中国井矿盐》
CAS
2010年第2期21-24,共4页
China Well and Rock Salt
关键词
张兴块段
石盐矿床
含盐系
韵律
Zhangxing section
halite deposit
saliferous system
cyclothem
