| 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 |
| 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 |
| 投稿时间：2025-06-09 修订日期：2025-11-16 |
| DOI：10.6053/j.issn.1001-1412.2025.04.008 |
| 中文关键词: 滨海平原 地表基质 分层分类 分布与形成 天津 |
| 英文关键词:coastal plain ground substrate stratified classification distribution and formation Tianjin |
| 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。 |
|
| 摘要点击次数: 50 |
| 全文下载次数: 51 |
| 中文摘要: |
| 自2020年“地表基质”概念提出以来，相关调查工作尚未形成统一的标准。天津滨海平原在此领域具有典型性与代表性，研究该区地表基质的分布特征与形成过程，对于推进自然资源调查监测体系建设具有重要意义。本研究基于分层分类的思路，综合运用调查成果总结、分期分层编图及钻孔剖面分析等方法，将地表基质层垂向上划分为浅表基质层与深部基质层两层。结果表明：浅表基质以盐化土和盐土为主，物质组成多为黏壤土和黏土，局部为粉壤土和壤土，其形成受气候、地貌及人类活动共同影响；深部基质类型以粉壤土、壤土、黏壤土、黏土及淤泥为主，按古气候和古环境划分为4个期次，形成过程明显受全新世海陆交互作用控制。本研究成果不仅揭示了滨海平原地表基质的类型、层序结构与成因机制，也为地表基质分类体系与调查标准的建立提供了关键案例支撑，有序推动了滨海地区地表基质调查监测工作的开展。 |
| 英文摘要: |
| Since the concept of "ground substrate" was introduced in 2020, there has been a lack of unified guidelines for related investigation work. The Tianjin Coastal Plain is typical and representative in this field. Studying the distribution characteristics 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 including summarizing survey results, compiling phased and layered maps, and analyzing borehole profiles. The ground substrate 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 promotes the orderly development of ground substrate survey and monitoring in coastal areas. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
| 关闭 |
|
|
|
