100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
Previously searched by you
Previously searched by you
logo
Summary Deformation - Unconformities, Folds and Faults £5.49   Add to cart
Quickly navigate to
Preview
  2.  
  3. WJEC
  4.  
  5. Geology
  6.  
  7. GL5 - Geological Themes

Summary

Summary Deformation - Unconformities, Folds and Faults

1 review
 42 views  1 purchase

In-depth notes explaining stress-strain graphs, factors affecting stress and strain, unconformities, folding, and faults (dip-slip and strike-slip)

Preview 1 out of 4  pages

Document information

  • September 1, 2020
  • 4
  • 2019/2020
  • Summary

Subjects

Written for

All documents for this subject (5)

1  review

review-writer-avatar

By: abdullahmahmood • 6 months ago

Seller

avatar-seller
emily1744

Reviews received

Content preview

Deformation: Unconformities, Folds and Faults
Deformation of Rocks: Stress-Strain Graphs
Stress – forces applied to a rock

• Tensional Stress = pull apart
• Compressional Stress = move together

Strain – the deformation caused by the stress

Stress-Strain Graphs Key Words:

Elastic Deformation – no permanent deformation, will recover after
stress is removed

Plastic/Ductile Deformation – permanent change in shape

Fracture Point – when the rock starts to break

Elastic Limit – marks the start of permanent deformation

Brittle Response – yield strength of the material has been exceeded and the material fails in a brittle way

Factors Affecting Stress and Strain

• Temperature
• Composition of rock/strength
• Confining pressure
• Strain rate



Taking Dips and Strikes


Strike 1 Angle/direction of no dip
True Dip (dip amount) 4 The maximum angle of dip a rock can have
Dip Direction 2 Direction in which the rock is tilted
Apparent Dip Direction 3 Any angle between 0 (strike) and maximum tilt




Unconformities
Unconformity – a boundary that marks a hiatus (break) in deposition, a period of erosion. It represents a time
gap

Development of an Unconformity

1) Horizontal deposition (oldest at the bottom)
2) Tilting due to tectonic compression
3) Erosion of surface
4) Deposition of new materials

The unconformity is the boundary between the new material and eroded

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

Guaranteed quality through customer reviews

Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.

Quick and easy check-out

Quick and easy check-out

You can quickly pay through credit card for the summaries. There is no membership needed.

Focus on what matters

Focus on what matters

Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!

Frequently asked questions

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

Satisfaction guarantee: how does it work?

Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.

Who am I buying these notes from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller emily1744. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for £5.49. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

73216 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy revision notes and other study material for 14 years now

Start selling
£5.49  1x  sold
  • (1)
  Add to cart