CHAPTER 15 (external processes)
What is meant by denudation?
The overall effect of the disintegration, wearing away, and removal of rock material. Implies a lowering of continental surfaces.

The three stages in denudation are?
1. Weathering is the breaking down of rock into smaller components by atmospheric and biotic agencies.
2. Mass wasting involves the downslope movement of broken rock material due to gravity.
3. Erosion consists of more extensive and generally more distant removal of fragmented rock material.

Weathering involves the mechanical disintegration and/or chemical decomposition of rock, whether the rock is above or below ground…..depends on ‘openings' which fall into 5 types…what are they? (microscopic, joints, faults, lava vesicles, solution cavities)
Microscopic: tiny and numerous, responsible for extensive weathering. May consist of spaces between crystals of igneous or metamorphic rocks, pores between grains of sedimentary rocks, minute......

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Title: Chapter 15 :External Processes
Approximate Word Count: 935
Approximate Pages: 4 (250 words per double-spaced page)

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