Building up the Landscape Naturally occurring inorganic material
Building up the Landscape
Naturally occurring, inorganic material made up of one or several elements in a chemical reaction.
One of the basic substances that makes up all matter. There are 92 elements that occur naturally on Earth Carbon (C) Iron (Fe) Nickel (Ni)
The inorganic matter that makes up most of the Earth’s crust. A naturally occurring solid combination of minerals. Element Mineral Rock Example: Limestone C, Ca, O Ca, CO 3 Ca. CO 3
Magma that has been cooled and becomes solid. Sometimes called “firerocks” “Layered Rocks” – formed from material that has settled to the bottom of a body of water Rock changed by heat and pressure from one form into another.
- Magma which has flowed onto the Earth’s surface -The molten material of which the rock is formed - Molten material underneath the earth’s crust
There are 3 steps: 1. The breaking up or weathering of rocks 2. The transporting of rock minerals 3. The deposition of the minerals 4. Considered to be a true cycle because the process repeats itself over and over The time line of the erosion cycle is variable.
(movement of material)
(movement of material)
(movement of material)
-The agents chew away the earth’s prominent features, reducing their height & moving the loosened materials elsewhere. Eroded mountains in Chili, South America - The opposite occurs in lower regions. Higher areas are broken up & moved to raise lower areas, smoothing out the Earth’s surface
- Chemical reactions break down the bonds holding the rocks together, causing them to fall apart, forming smaller and smaller pieces. Chemical weathering is much more common in locations where there is a lot of water. - Physical breaking up of the rocks by water getting into joints/cracks and freezing
- Includes the effects of animals and plants on the landscape. It is a molecular breakdown of minerals. (Lichen!)
- Deposition builds up the land because: 1. Water slows down 2. Wind drops 3. Glacier (ice) begins to melt 4. Results in the material being dropped.
- Slides: 17