Milewski
Name:_______________________ Date:_____ Class:___
Crustal Deformation Lab
Objective:
Replicate and observe various crustal deformations using play doh as a medium.
Part 1: Review
1. Roll play doh into layers and stack each layer. Draw a diagram of your strata.
Define:​ Strata→
Diagram:
Observations:
1. Tensional
a. Apply tensional stress to your strata.
Describe the
Strain
Type of
Boundary?
Observations?
Diagram Sketch
b. Reform your flat layer strata for your next model.
Milewski
Name:_______________________ Date:_____ Class:___
2. Compressional
a. Apply Compressional stress to your strata.
Describe the
Strain
Type of
Boundary?
Observations?
Diagram Sketch
b. Reform your flat layer strata for your next model.
3. Shear
a. Apply shear stress to your model.
Describe the
Strain
Type of
Boundary?
Observations?
Diagram Sketch
b. Reform your flat layer strata for your next model.
Milewski
Name:_______________________ Date:_____ Class:___
Part 2: New formations → Folds
What is a fold?
Milewski
Name:_______________________ Date:_____ Class:___
Create a fold using compressional (and other needed) stress. Draw a diagram of the
fold and label the parts of the fold.
Anticline
Diagram:
Defining features:
What type of stress/movements were needed to create this form?
Syncline
Diagram:
Defining features:
What type of stress/movements were needed to create this form?
Overfold
Diagram:
Defining features:
What type of stress/movements were needed to create this form?
Milewski
Name:_______________________ Date:_____ Class:___
Recumbent fold
Diagram:
Defining Features:
What type of stress/movements were needed to create this form?