Geology
The study of the earth’s history as revealed in the rocks that make up the earth.
The decayed remains of once-living creatures.
These rocks are formed as sediments are laid down by water or some other agent. The pile up and are cemented together dude to chemical reactions as well as heat and pressure.
Layers found in sedimentary rock.
The process by which rocks are broken down to form sediments.
What is weathering?
The view that most of the earth’s geological features are a result of slow gradual processes that have been at work for millions or even billions of years.
What is Uniformitarianism.
Soil is made of these four components.
What are gravel, sand, silt, and clay?
Rock that has undergone change due to heat and/or pressure.
What is Metamorphic Rock?
What is lamination?
The two types of weathering.
What are physical and chemical?
The view that most of the earth’s geological features are the result of large scale catastrophes such as floods, volcanic eruptions, etc.
What is Catastrophism?
Solid rock that the earth's soil rests on top of.
What is earth's crust?
Rock that forms from molten lava.
What is igneous rock?
A surface erosion that separates one layer of rock from another.
What is unconformity?
What is erosion?
This philosophy of geology believes in a "young" (meaning the earth is less than 10,000 years old) earth approach.
What is Catastrophism?
The first and topmost layer of soil.
What is topsoil?
Inorganic crystalline substances found naturally in the earth.
What are minerals?
When sedimentary rock rests on top of igneous or metamorphic rock.
What is nonconformity?
Groundwater erosion causes these to form under the earth.
What are caves or caverns?
More scientists believe that the earth is billions of years old and therefore believe in this approach to geology.
What is Uniformitarianism?
Sand, silt, minerals and other components of soil.
What are sediments?
What is magma?
These are two forms of intrusions that form when magma from underneath the sedimentary rock get injected in the crack and fissures of the sedimentary rock.
What are sills and dikes?
These are icicle-like structures hanging down from the ceiling of a cavern or cave.
What are stalactites?