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Geomechanics3 - Geology

Structural geology & site history (Add facets fm Al G's notes)

Adrian McCallum

on 6 August 2018

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Transcript of Geomechanics3 - Geology

photo credit Nasa / Goddard Space Flight Center / Reto Stöckli
An introduction.....
Structural Geology & Geological mapping
Structure of the Earth?
Structural Geology
What are the primary three ways these might interact and what typically results?
In this lecture.....
What is the structure of the earth?
What processes form geomaterials?
How is the earth's structure depicted?
Basic Geological Structures
Geological Mapping
What's it all about?
So how do we read these things?
What did we cover last week?
How does it relate to this week?
What is the Lithosphere
(crust + solid part of upper mantle) comprised of?
From Willmott, 2007.
Engineering significance?
Describing orientation
Engineering significance?
Some rules:
Oldest rock is generally on the bottom.
Sedimentary beds were deposited horizontally.
Sedimentary deposition is assumed continuous.
Cross-cutting rocks are younger.
Included rocks are older.
From USQ, CIV2403
4, 1, 3, 5, 2.
Investigate (5 min)
Take 2 min; order the rocks oldest to youngest...
So that's it; primary points?
Next week...
What can these cause in the rock?
North Connex Tunnel (Sydney) - Nick Lyons
From: www.livescience.com/37052-types-of-faults.html
Full transcript