Weathering Flashcards
What is Weathering?
Weathering is a group of processes that breaks down rocks,soil and minerals into smaller pieces.
What is Physical weathering?
Its the Physical breakdown of rocks into smaller components without changing their chemical composition
Exfoliation is the_?
Process where rocks weather by peeling off in sheets rather than breaking into small pieces of gravel
What is block separation?
It occurs when rocks break up into lnto large fragment related to rock joints
Chemical weathering is the breakdown of?
Rocks into particles with a different mineral composition or make-up from the original rock
Chemical Weathering can occur through?
Solution,oxidation,carbontion,hydration,hydrolysis
Solution?
minerals or soluble minerals dissolve directly in water
Hydrolysis?
Chemical reaction between minerals in rock and hydrogen in rain water
Hydration?
Minerals in rocks absorb water and expand
Hydration causes?
The rock to expand and break.
Oxidation occurs when?
when rock minerals and Dissolved oxygen
Carbonation occurs when?
Carbon dioxide dissolves in water to form a weak solution of carbonic acid
Biological weathering involves?
Living things
Human Activities that cause weathering?
The Burning of fossil fuels,Construction,Mining operations
The Burning of fossil fuels does what?
Releases chemicals into the air that makes the atmosphere acidic.