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Evolution of groundwater flow systems driven by sedimentary environments in the middle reaches of the Yangtze River since the last glacial period

 Last Update: 2022-09-14
 Source: Internet
 Author: User

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Based on this, in this study, a research team from China University of Geosciences (Wuhan) conducted relevant research in the hinterland and transition area of the Han River Plain, aiming to: (1) reconstruct the sedimentary environment of the Quaternary aquifer system of the Han River Plain based on sediment particle size characteristics, clay pore water stability isotopes and paleoclimate indicators; (2) In-depth understanding of the evolution pattern

The authors drilled two boreholes G01 and G05 in the hinterland and transition zone of the Han River Plain in 2015 and 2017 at depths of 200 m and 185 m

Quaternary sedimentary facies, river systems and major boreholes in

Based on the comprehensive analysis of hydrogeological conditions, particle size distribution characteristics, sediment chronology, paleoclimate indicators and existing groundwater age, the evolution mode

In the evolutionary history of the Quaternary aquifer sedimentary environment of the Jianghan Plain, the sedimentary facies are mainly the fluvial, limnal and river-lake facies, which transition from the coarse-grained phase of the middle and deep aquifers to the fine-grained phases

Since LGM, there has been a certain coupling relationship

Based on the distribution of existing groundwater age in the Jianghan Plain, the evolutionary pattern of GFS can be divided into three stages

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