摘要
自森林沼泽景观区1∶20万区域化探工作开展以来,各个单位、不同阶段工作方法技术各有不同,工作效果不明显。中国地质科学院地球物理地球化学勘查研究所近年来通过试验研究制定了新的工作方法技术,认为1∶20万水系沉积物测量采样粒级为-10^+60目,采样密度为(1~2)个点/4 km2,可取得好的效果。笔者仅以一二五公里幅区域化探为例对新、旧方法技术的应用效果加以分析对比。
1： 200 000 regional geochemical exploration was carried out in forest-swamp landscape areas, different units have used somewhat different methods and techniques at different working stages, but without obvious effects. Based on tests and studies, the Institute of Geophysical and Geochemical Exploration has formulated a new working method, which holds that in 1：200 000 stream sediment survey the adoption of the sampling grain size grade of - 10 - ＋ 60 mesh and the sampling density of 1- 2 points/4 km^2 can yield good results. Exemplified by regional geochemical exploration in the 1： 200 000 125 km Sheet, the authors made an analysis and comparison between the old and new methods and techniques.
出处
《物探与化探》
CAS
CSCD
2008年第5期502-508,共7页
Geophysical and Geochemical Exploration
基金
中国地质调查局地质大调查项目(1212010510616)资助
关键词
森林沼泽景观区
区域化探
水系沉积物测量
样品采集技术
orest - swamp landscape area.
regional geochemical exploration
stream sediment survey
sampling technique
