Geological cross-sections

M. Genge
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Abstract

Geological cross-sections are graphical representations of the distribution of rock units in vertical planes cut through landscapes. Cross-sections extrapolate the boundaries between rock units above and below ground. This chapter provides practical advice on how to create geological cross-sections through the interpretation of maps with an emphasis on recognizing the key features that reveal the orientation of boundaries and structures. Topography lines can be sketched with reasonable accuracy rather than transferred from maps. The use of sketch cross-sections as an interpretative diagram is introduced, and examples given to illustrate how these can be used in field notes to assist in the analysis of geological structures.
地质横断面图
地质剖面是岩石单元在穿过景观的垂直平面上分布的图形表示。横截面推断地表上和地下岩石单元之间的边界。本章提供了关于如何通过解释地图创建地质剖面的实用建议,重点是识别揭示边界和构造方向的关键特征。可以以合理的精度绘制地形线,而不是从地图上转移。介绍了使用草图横截面作为解释性图表,并举例说明如何在实地记录中使用这些图表来协助分析地质结构。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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