摘要
应用地质、地理相结合的方法，对鄱阳湖区现代沉积特征进行了深入研究，提出了沉积体系时间域的概念，从而确定鄱阳湖全新世沉积的底界年龄是１．２万年。１．２万年以来，鄱阳湖区共发育３类沉积体系，自下而上为冲积扇－扇三角洲沉积体系、河流沉积体系和三角洲沉积体系。阐述了各类沉积体系形成时的环境特点和沉积特征。研究认为，鄱阳湖东西两侧的垂向沉积序列是不同的。
Modern sedimentary characteristics in the Poyang Lake have been studied with a combination of geological and geographic information. The concept ofsedimentary system time range is proposed in the paper. The age of Holocene base is determined to be 12000 yr. BP in the Poyang Lake. There are three kinds of depositional system since 12000 yr. BP in the lake. They are alluvial fan and fan delta, channel, and delta system from down to up. Sedimentary environmental and characteristics of each system are discussed in details.
出处
《江汉石油学院学报》
CSCD
北大核心
1996年第1期24-29,共6页
Journal of Jianghan Petroleum Institute
关键词
沉积环境
沉积特征
全新世
沉积体系时间域
sedimentary environment
sedimentary characteristic
Hololeneepoch
Poyang Lake
