地质找矿论丛2025，Vol.40Issue(4)：515-523,9.DOI:10.6053/j.issn.1001-1412.2025.04.008
天津滨海平原地表基质分布特征及其形成过程
Distribution Characteristics and Formation Process of Ground Substrate in Tianjin Coastal Plain
摘要
Abstract
Since the concept of"ground substrate"was introduced in 2020,there has been a lack of unified guidelines for re-lated investigation work.The Tianjin Coastal Plain is typical and representative in this field.Studying the distribution charac-teristics and formation processes of the ground substrate in this area is of great significance for advancing the construction of a natural resource survey and monitoring system.Using a hierarchical classification approach,this study employs methods in-cluding summarizing survey results,compiling phased and layered maps,and analyzing borehole profiles.The ground sub-strate layer is vertically divided into a shallow substrate layer and a deep substrate layer.The results show that the shallow substrate is primarily composed of saline soil and solonchak,with material constituents mostly being clay loam and clay,and locally silt loam and loam.Its formation is influenced by climate,geomorphology,and human activities.The deep substrate types mainly include silt loam,loam,clay loam,clay,and silt,which are divided into four phases based on paleoclimate and paleoenvironment.The formation process is clearly controlled by Holocene land-sea interactions.The findings of this study not only reveal the types,stratigraphic structure,and genetic mechanisms of the ground substrate in the coastal plain but also provide key case support for establishing a classification system and survey standards for ground substrate.This directly pro-motes the orderly development of ground substrate survey and monitoring in coastal areas.关键词
滨海平原/地表基质/分层分类/分布与形成/天津Key words
coastal plain/ground substrate/stratified classification/distribution and formation/Tianjin分类
天文与地球科学引用本文复制引用
樊航宇,王林海,曹磊,吴荣泽,周长红,张晓飞,郭立君..天津滨海平原地表基质分布特征及其形成过程[J].地质找矿论丛,2025,40(4):515-523,9.基金项目
天津市地方财政项目"天津市地表基质调查(2023年度)"(津地矿任[2023]4号)资助. （2023年度）
