摘要
本文对济南市区新生界地层厚度图及灰岩顶板埋置深度图进行分区,并对这两个分区文件的图形及属性数据进行编辑,在此基础上利用Mapgis空间分析进行区对区合并和侵入岩厚度属性计算,形成侵入岩的厚度分布图。揭示了济南市区侵入岩厚度整体上具有由南向北逐渐增厚的变化特征,在泉城路以北侵入岩厚度较大,泉城路以南厚度相对较小的总体趋势,侵入岩分布整体上具有连续性,在趵突泉、黑虎泉排泄区侵入岩缺乏形成"天窗"。该方法在研究济南侵入岩厚度变化特征上具有明显优势,能有效地识别出侵入岩厚度在区域上的变化特征,从而对泉水形成的地质成因有了新的认识,可为济南泉水的保护提供依据。
This paper divides the cenozoic strata thickness map and limestone roof buried depth map,edits graphic and attribute data of these two maps,uses MAPGIS spatial analysis for area consolidation and intrusive rock thickness calculation,generating distribution map of intrusive rocks thickness.The result reveals the variation characteristics of intrusive rocks thickness with a gradual thickening from north to south in Jinan city,which shows that the intrusive rocks thickness is thicker in the north of Quancheng Road and thiner in the south of Quancheng Road.The overall distribution of intrusive rocks is continuous,two roof windows exist caused by lack of intrusive rocks in Baotu Spring and Hei Hu Spring discharge areas.This method has an obvious advantage in the study of variation characteristics of intrusive rocks thickness in Jinan,which can effectively identifies the variation characteristics in region and gets new understanding on the geological genesis of spring forming,and provides basis for springs protection in Jinan.
出处
《铜业工程》
CAS
2011年第5期5-10,共6页
Copper Engineering
基金
山东省自然科学基金资助项目(ZR2009EM010)
