Soils
Soil is formed by:
From the weathering and erosion of rocks.
What is Mechanical/Physical weathering?
When physical forces break rock into smaller and smaller pieces without changing the rock’s mineral composition.
What is an Intrusive Igneous Rock?
What is compaction?
The process that squeezes sediments together.
What is happening to erosion rates on a global scale?
They are Increasing.
What are the four major components of soil.
What are: Humus, air, sediments, and water
What is Chemical Weathering?
What is the transformation of rock into one or more new compounds.
What is Deposition?
When sediments are dropped in a new location.
What type of metamorphic rock has a banded/layered appearance?
What is a Foliated Metamorphic Rock.
What type of weathering would occur best in the Arctic or Tundra.
What is physical weathering.
What is the Regolith?
What is the layer of rock and mineral fragments that covers nearly all of Earth’s surface.
How can water be an agent for physical weathering?
By seeping into the cracks of rocks and freezing
(ICE/FROST WEDGING)
What is the formation of sedimentary rocks is powered by?
What is the sun.
What is a nonfoliated metamorphic rock?
A type of metamorphic rock does not have a banded/layered appearance.
Which erosional force will move the largest sediments?
What is Gravity.
What are the 3 characteristics of soil?
1.Soil Composition
2.Texture
3.Structure
Which agent of erosion is responsible for the creation of landforms such as sharp mountains and deep U-shaped valleys?
What is Ice/A Glacier.
What is a Porphyritic Texture in an Igneous Rock?
A texture that has large and small crystals.
What are the 2 processes that create sedimentary rocks?
What are Compaction and Cementation.
What is humus?
Humus is dark, organic material that forms in soil when plant and animal matter decays.
What kind of material is found in the C horizon of a soil profile?
What is partially weathered parent material.
Which agent of erosion is responsible for moving more sediment on Earth than anything else?
What is water.
Give the locations where you could find Igneous rocks being formed
Volcanoes, inside the earths crust (intrusive) or outside the earths crust (extrusive)
What is the only type of rock that could have fossil in it?
What are Sedimentary Rocks.
What type of soil would you most likely find here in North Carolina?
What is pedalfer soil.