地表基质编图探索与实践--以塘湖幅为例  

Exploration and practice of ground substrate mapping:taking Tanghu area as an example

作　　者：王献 鲁敏 侯红星 孟子安 WANG Xian;LU Min;HOU Hongxing;MENG Zian(Langfang Integrated Natural Resources Survey Center,China Geological Survey,Langfang 065000,Hebei,China)

机构地区：[1]中国地质调查局廊坊自然资源综合调查中心,河北廊坊065000

出　　处：《自然资源情报》2024年第11期53-57,共5页Natural Resources Information

基　　金：中国地质调查局项目(编号:DD20230531)。

摘　　要：地表基质图是地表基质调查成果表达的重要载体,反映了区域地表基质的本底特征。本文依托山地平原过渡典型区-塘湖幅的调查实践,融合借鉴地质、地貌和土壤等综合学科,从地表基质分区、地表基质构型、次构型三个层级对区域地表基质分布特征进行表达。基于野外实际调查点、背包钻及点位所在的地貌类型、母岩分类、植被情况等要素,利用数学模型预测基岩上覆土质厚度。划分出仅土质出露、仅岩石出露、岩石+土质组合出露三种情况,填绘区域0~5 m地表基质空间分布特征的地表基质图,为地表基质调查成果表达提供有力支撑。The ground substrate map is an important carrier for the expression of the results of ground substrate survey,and expresses the background characteristics of the ground substrate in the region.Based on the investigation practice of Tanghu Sheet,a typical transitional area between mountain and plain in Hebei province,this paper expresses the distribution characteristics of the regional ground substrate from three levels of ground substrate zoning,ground substrate configuration and sub-configuration by integrating geology,geomorphology and soil.Based on actualfield survey points,backpack drills,and factors such as terrain type,parent rock classification,and vegetation conditions,a mathematical model is used to predict the thickness of overlying soil on bedrock.Three cases of only soil exposure,only rock exposure,and rock+soil combination are distinguished,and a ground substrate map that can express the spatial distribution characteristics of the 0-5m ground substrate in the region is divided,which provides a strong support for the expression of ground substrate survey results.

关 键 词：地表基质 地表基质图 地表基质分区 塘湖 

分 类 号：P623[天文地球—地质矿产勘探]