黄河口百米地质钻孔粒度特征

详细信息

收稿日期: 2013-12-10

GRAIN SIZE CHARACTERISTICS OF THE 100-METER GEOLOGICAL DRILLING HOLE AT THE ESTUARY OF YELLOW RIVER

Received Date: 10 December 2013

摘要: KD4百米地质钻孔位于现行黄河口地区,运用层序地层学、年代地层学将KD4岩心划分为14个地层,地层底界相当于渤海湾西岸的沧州海侵层,地层呈现浅海相、潮间带、陆相等海陆交互相的典型地层特征。通过对KD4岩心的1 808个样品的粒度参数分析并结合频率曲线、概率累积曲线特征,初步分析了KD4岩心的物源、沉积环境特征,认为KD4岩心的物源比较单一,主要接受黄河沉积,沉积形式主要为浊流和河漫滩沉积。
- 黄河口 /
- 岩性特征 /
- 粒度参数 /
- 沉积环境
Abstract: The core from Hole KD4, which is locatd off the modern Yellow River mouth, is subdivided into 14 strata according to sequence stratigraphy and chronostratigraphy. The bottom boundary of the core is the transgressive layer which is also called the Cangzhou transgression on the west coast of Bohai Bay. The stratigraphy is characterized by the intercalation of shallow marine and terrestrial deposits. Grain size parameters were analyzed for 1 808 samples. The frequency and probability cumulative curves of the sediemnts reveal that the sediments of the core KD4 are mainly derived from the Yellow River and deposited mainly in the form of turbidity currents and overflows.
- Yellow River mouth /
- lithologic character /
- grain size parameters /
- depositional environment