长白山天池火山喷发物地形地貌特征初步研究  

Preliminary Study on Geomorphic Characteristics of Eruptive Products of Tianchi Volcano,Changbai Mountains

作　　者：栾鹏[1,2] 许建东[1] 潘波[1] 于红梅[1] 赵波[1] 

机构地区：[1]中国地震局地质研究所,北京100029 [2]中国国土资源经济研究院,北京101149

出　　处：《地震研究》2009年第2期182-187,共6页Journal of Seismological Research

基　　金："十一五"国家科技支撑计划项目(2006BAC01B040102)资助

摘　　要：借助数字高程模型(简称DEM)的地形分析技术,得出了能够突出沟谷信息的长白山天池火山锥形立体地形图。利用坡度分析、高程剖面分析、三维透视等DEM技术方法,对更新世以来的长白山天池火山喷发物空间分布范围进行了地形地貌分析,并与前人已有的野外地质调查结果进行对比,总结出了研究区内喷发物的地形地貌特征,据此推测了前人未涉及地区的喷发物的空间分布范围。这为开展长白山天池火山的大比例尺火山地质填图,特别是对于某些全新世火山喷发物范围和界限的厘定提供了遥感学依据。In this paper, using DEM terrain analysis technology, we acquired a three-dimensional topographic map, which can give prominence to the valley information. By the DEM technology, such as slope analysis, elevation profiles analysis, three-dimensional perspective, we analyzed the landform of the spatial distribution of the eruptive products that were from the eruption of Tianchi volcano in Changbai Mountains sssince Pleistocene. The results were compared with that of the Predecessors＇ filed geological survey. The topography features of eruptive products in the study area were summarized, by which the spatial distribution of the eruptive products that was uninvolved by predecessors was speculated. These results can provide a remote sensing basis for making the large-scale volcanic geological maps of the Tianchi volcano, in Changbai Mountains, and especially for determining the scope and limits of some Holocene volcanic eruptive products.

关 键 词：长白山天池 DEM 地形分析 坡度 喷发物 

分 类 号：P317.3[天文地球—固体地球物理学]