摘要
扇三角洲沉积是伊通地堑主要沉积体系,地堑内发育水下水道型和水下水道—河口坝复合型扇三角洲,完整的扇三角洲序列包括进积、加积和退积3个阶段。在不同的构造沉降和沉积物供给条件下,形成了3种各具特色的扇三角洲序列样式,即缓慢沉降和低速沉积物供给型、快速沉降和低速沉积物供给型、快速沉降和高速沉积物供给型。
The fan delta deposit is the main depositional system in Yitong graben where subaqueous channel type and subaqueous channel mouth bar complex type fan delta develop. A complete fan delta sequence consists of the progressive, the aggradating and the regressive phases. Three types of fan delta sequences can be determined in different tectonic subsidence and sediment input; they are slow subsidence and slow sediment input type, rapid subsidence and slow sediment input type, and rapid subsidence and rapid sediment input type.
出处
《地球科学（中国地质大学学报）》
EI
CAS
CSCD
北大核心
1993年第6期749-756,共8页
Earth Science-Journal of China University of Geosciences
关键词
扇三角洲
构造沉降
沉积物
fan delta, tectonic subsidence, sediment input, Eogene. Yitong graben.
