Joints Flashcards
1
Q
How are they formed?
A
By tectonic forces
2
Q
How are tension joints formed?
A
Compression
3
Q
What is a joint?
A
Brittle fracture along which there is little or no displacement parallel to the fracture
4
Q
What are cooling joints and how are they formed?
A
Cooling of molten rocks causes contraction and stresses generated between individual cooling cells form joints, separating the rock into regular hexagonal shapes.
