Term
|
Definition
| forms from the reaction of water and carbon dioxide. Most rain water is a very weak carbonic acid solution formed by the reaction of rain with small amounts of carbon dioxide in the atmosphere |
|
|
Term
[image] chemical weathering |
|
Definition
| The breaking down of surface rock material by solution or chemical alteration. Common alteration processes are oxidation and hydrolysis |
|
|
Term
|
Definition
| Soil creep is the slow, down slope movement of soil under the influence of gravity |
|
|
Term
|
Definition
| A general term applied to the wearing away and movement of earth materials by gravity, wind, water and ice |
|
|
Term
|
Definition
| A physical weathering process in which concentric layers of rock are removed from an outcrop. |
|
|
Term
|
Definition
| A chemical reaction involving water that results in the breakdown of mineral material |
|
|
Term
|
Definition
| When water infiltrates fractures in rock and freezes, the force of expansion is great enough to break the rock into smaller pieces |
|
|
Term
|
Definition
| A downslope movement of rock and soil over a failure surface and under the influence of gravity. Slumps, earthflows, debris flows and debris slides are examples |
|
|
Term
|
Definition
| Mass movement is the down slope movement of earth materials under the influence of gravity. The detachment and movement of earth materials |
|
|
Term
[image] mechanical weathering |
|
Definition
| Mechanical weathering takes place when rocks are broken down without any change in the chemical nature of the rocks. |
|
|
Term
|
Definition
| A mudflow or mudslide is the most rapid (up to 80 km/h / 50 mph) and fluid type of downhill mass wasting. |
|
|
Term
|
Definition
| In chemistry, the oxidation state is an indicator of the degree of oxidation of an atom in a chemical compound |
|
|
Term
|
Definition
| Parent material is the material from which a soil forms |
|
|
Term
|
Definition
| the soil that is remaining after the soluble elements have been dissolved |
|
|
Term
|
Definition
| The top layer of the earth's surface, consisting of rock and mineral particles mixed with organic matter |
|
|
Term
|
Definition
| the washing away of soil by the flow of water |
|
|
Term
|
Definition
| a vertical section of soil from the ground surface to the parent |
|
|
Term
|
Definition
| The layer or bed of earth beneath the topsoil |
|
|
Term
|
Definition
| The upper part of the soil |
|
|
Term
|
Definition
| soil that has been trasported from various parts of the stream to other parts. |
|
|
Term
|
Definition
Any of the chemical or mechanical processes by which rocks exposed to the weather undergo changes in character and break down. |
|
|
