地质力学学报2017，Vol.23Issue(6)：856-863,8.
地质剖面测制新方法的尝试——点坐标法
A NEW GEOLOGICAL SECTION MEASURING AND MAPPING METHOD: POINT COORDINATES METHOD
摘要
Abstract
Geological section measuring and mapping is a necessary task for regional geological survey;however,the traditional geological section measurement,which is based on tapeline together with compass,has many limitations such as visual conditions,tapeline bending,manual measurement error and second projection defects.In order to improve the quality and efficiency of geological section measurement,on the basis of the previous methods,through the practice of a number of different types of geological survey projects,a new geological section measuring and mapping method using point coordinates is presented in this paper.The key points of the method include (1) Using GPS to obtain terrain control points,as well as three-dimensional coordinates in stratification,sampling,production,occurrence and other positions.(2) A series of formulas are developed,based on which parameters like horizontal distance between points,altitude difference,azimuth angle and slope angle can be calculated according to three-dimensional space coordinates of each point in order to do the mapping.The point coordinates method has two main advantages:(1) Digitization of measurement data is realized by the change from manual measurement to automatic measurement,and there is no need for tape line.(2) The facts that the end point of the tapeline does not coincide with the actual end point can be avoided.(3) It is convenient for field review because each layering point has a GPS coordinate.The case and practice have proved that the point coordinates method is superior to the tapeline method.It is worthy of being widely used in practical application.关键词
横剖面/导线法/点坐标法/地质填图Key words
cross section/tapeline method/point coordinates method/geological mapping分类
天文与地球科学引用本文复制引用
王冉,马立成,孙勇,张胜龙,贾志明..地质剖面测制新方法的尝试——点坐标法[J].地质力学学报,2017,23(6):856-863,8.基金项目
国家自然科学基金项目(41402044) （41402044）
中国博士后基金特别项目(2013T60869) （2013T60869）
地质大调查项目(DD20160173) （DD20160173）
