Ch.9 hw. - Crystal Cozart ESC1000 October 2, 2009 Ch.9...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Crystal Cozart ESC1000 October 2, 2009 Ch.9 Homework 3.) A geologic structure is any feature produced by rock deformation. Tectonic stress creates three types of structures: folds, faults, and joints. A fold is a bend in rock. A fault is a fracture along which rock on one side has moved relative to rock on the other side. A joint is a fracture in rock and is therefore similar to a fault, except that in a joint, rocks on either side of the fracture have not moved. 4.) Tectonic plates drift apart at a divergent boundary (the Mid-Oceanic Ridge system and continental drifts), stretching adjacent rock and producing normal faults and grabens but little folding of rocks. 8.) A fault is a fracture along which rock on one side has moved relative to rock on the other side. A joint is a fracture in rock and is therefore similar to a fault, except that in a joint, rocks on either side of the fracture have not moved. Joints and faults are important in engineering, mining, and quarrying because they are planes of weakness in otherwise strong rock. 9.) A
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 02/13/2011 for the course ESC 1000 taught by Professor Staff during the Fall '08 term at University of Florida.

Ask a homework question - tutors are online