Answer Summary

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Identify key discontinuity characteristics (in general)

Dip Direction

Dip

Spacing (m)

Persistence (m)

Waviness

Centimetre scale discontinuity description

Use this photo to answer the questions below! Note the rock hammer for scale.

Identify key discontinuity characteristics for the horizontal discontinuity

Aperture (mm)

Roughness

Alteration/weathering/infilling

Water

Complete a Scanline map of 5 m long horizontal line anywhere on the dyke

Chainage (m)

Type

Dip

Direction

Spacing (m)

Persistence (m)

Aperture (mm)

m-Roughness

cm-Roughness

Asperity (mm)

Infill

Weathering

GSI Exercise

Let's see if you got it!

Determine the GSI in the zoomed in area.

Structure

Surface Condition

GSI (Range)

Reflective Questions

The wishy-washy but important thinking part

A couple of questions here to get you to think about your learning experience. If you aren;t in the habit of writing down your thoguhts, it might be a bit awkward but it does really make a big difference in how you absorb what you've learnt, so have a go at it !

What did you learn in this Virtual Field Trip that seemed to connect with other courses?

Do you feel that the Virtual Field Trip has helped you prepare

for scanline mapping in the field?
for assessing the GSI of a rock mass?

Rock Mass Characterisation Virtual Field Trip : Answer Summary