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我国东部平原和沿海平原是“源到汇”过程中陆源碎屑沉积物堆积的重要场所,更是海陆对比中的重要内容。北自下辽河平原,南到珠江三角洲地区,无论是浅覆盖区还是深覆盖区,各省市第四纪地层单元皆依钻孔资料建立。自1977年开始,各地区区域地层表、区域地质志陆续出版,及至1990年代《全国地层典第四系》编写,已经发现各地各自在东部平原及滨海平原建立地层单元的做法,阻碍跨省市图件综合地层表的编制。三十年来沉积学、层序地层学、间断地层学、气候地层学等学科
The eastern plains and the coastal plains of our country are the important sites for the accumulation of terrigenous clastic sediments during the process of “source to sink”, which is an important part of the comparison between sea and land. From the lower Liaohe Plain to the north and to the Pearl River Delta to the south, the Quaternary stratigraphic units of all provinces and municipalities are established according to the borehole data, no matter in shallow or deep coverage areas. Since 1977, the regional stratigraphic tables and regional geologists have been published one after another, up to the “National Stratigraphy Quaternary IV” in the 1990s. Various strata have been found to establish stratigraphic units in the eastern plains and coastal plains, hindering inter-provincial and municipal Drawing integrated table formation. Thirty years of sedimentology, sequence stratigraphy, discontinuous stratigraphy, climate stratigraphy and other disciplines