Discussion of Maximum Holocene Transgression Location on the West Coast of the Bohai Bay. Taking the Jingwu Town Southwest of Tianjin as An Example
Abstract：The boundary between the marine facies and the continental facies is distinguished and the maximum Holocene transgression location is discussed by means of the measurement of conductivity of clayey turbid water and the identification of foraminifera and shellfish made for two boreholes, Borehole H and Borehole PL, which were respectively drilled southwest of the Xiaonanhe Village and west of the Panlou Village of the Jingwu Town, Xiqing District of Tianjin City. The results show that since the early Mid-Holocene the region around the Jingwu Town has experienced a sedimentary process of continental facies → short-lived marine - continental transition facies → continental facies. And the maximum Holocene transgression location in this region lies between Borehole H and Borehole PL, about 57Km away from the modern coastline of the western Bohai Bay. The thin layer of marine facies occurring in Borehole H could be the margin of the marine continental transition facies formed during the maximum Holocene transgression.
Keywords：southwest of Tianjin Cityholocenetransgressionmarine-continental faci es stratumearth-crust subsidence
Publication Date：2012-01-01
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：10( 45-54 )