what are the three different stresses of faulting?

Question

thankyou for all your answers

Answer 1

The three principal stresses of faulting are usually referred to as sigma1, sigma2 and sigma3. Here's a link that explains their realationships and type of faulting induced.

also: sigma1 > sigma2 > sigma3

http://www.geology.cwu.edu/dept/courses/g360/anderson.html

Answer 2

1. Transform boundaries occur where plates slide or, perhaps more accurately, grind past each other along transform faults. The relative motion of the two plates is either sinistral (left side toward the observer) or dextral (right side toward the observer).

2. Divergent boundaries occur where two plates slide apart from each other (examples of which can be seen at mid-ocean ridges and active zones of rifting (such as with the East Africa rift)).


3. Convergent boundaries (or active margins) occur where two plates slide towards each other commonly forming either a subduction zone (if one plate moves underneath the other) or a continental collision (if the two plates contain continental crust). Deep marine trenches are typically associated with subduction zones. Because of friction and heating of the subducting slab, volcanism is almost always closely linked. Examples of this are the Andes mountain range in South America and the Japanese island arc.

Visit the source for more information

Answer 3

Compressional: ----><-------
Tensional: <-------/------->
Shear: v / ^