Transcription of INTRODUCTION TO FIELD MAPPING OF GEOLOGIC …
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INTRODUCTION TO FIELD MAPPING OF GEOLOGIC STRUCTURES GEOL 429 FIELD geology Department of Earth Sciences Montana State University Dr. David R. Lageson Professor of structural geology Source: Schmidt, , 1977, GEOLOGIC map of the Craig quadrangle, Lewis and Clark and Cascade Counties, Montana: Geological Survey GQ-1411, 1:24,000. 2 CONTENTS Topic Page INTRODUCTION 3 Deliverables 4 Constructing a GEOLOGIC map in the FIELD 4 Procedure 5 Types of contacts 7 Air photos 8 Common symbols used on GEOLOGIC maps 9 Surficial
and stresses responsible for the deformation). Stage 1, descriptive structural analysis, is the product of careful field mapping. Although maps are two-dimensional sheets of paper, they portray the geology in three-dimensions. This is because most structures tend to dip or plunge and,
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