2-1

Lesson 2

Part 2

STEREOGRAPHIC PLOTTING

2-2

Analysis of Structural Geology

Stereographic Projection

Orientations Expressed as Dip/Direction

No Size or Location Data

2-3

Projections of Linear/Planar Features

2-4

STUDENT EXERCISE 1A – STEREONET PLOTS

Objectives

Plot stereonets of dip and dip direction

measurements

Analyze stereoplots to show intersection

between planes

Demonstrate applications to stability

analysis

2-5

Stereographic Plot of Poles

2-6

Stereographic Contour Plot of Poles

2-7

Symbolic Pole Plot with Contour Overlay

2-8

2-9

Stereoplot of Plane Failure

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2-11

Stereoplot of Wedge Failure

2-12

2-13

Stereoplot of Circular Failure

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2-15

Stereoplot of Toppling Failure

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2-17

LESSON 2 – GEOLOGICAL DATA COLLECTION and STEREOGRAPHIC PLOTTING

Learning Outcomes -

List important geological parameters of

discontinuities;

Plot and analyze structural orientation

(stereonet) data.