Flashcards in Geology Deck (42):
Having solidified from lava or magma
Hot fluid underneath the Surface of the Earth.
Hot fluid erupted from a Volcano, on the Surface of the Earth or above it.
Solidified Magma Underground to form Intrusions
Lava flowing from a Volcano
A solid, naturally occurring inorganic substance
The Outer part of the earth, consisting of the crust and upper mantle
The Upper layer of the earth's mantle, below the lithosphere
A small piece of a substance that has formed naturally into a regular symmetrical shape.
Rocks formed from sediments deposited by water, wind or ice. The sediments are cemented together in layers, under pressure
The wearing away and removal of soil and rock by natural elements, such as wind, waves, rivers and ice, and by human activity
Flat, open land beside a river where sediments are deposited during floods
Large bodies of ice that move down slopes and push boulders, rocks and gravel in front of them
Deposit left by movement of a glacier
A sedimentary rock with medium-sized grains. The sand grains are cemented together by silica, lime or other salts.
A fine-grained, sedimentary rock without layering
A fine-grained sedimentary rock formed in layers by the consolidation of clay
A sedimentary rock with a particle size between that of sandstone and mudstone
Sedimentary rock containing large particles of various sizes cemented together
A sedimentary rock formed from the remains of sea organisms. It consists mainly of calcium carbonate.
A sedimentary rock formed from dead plants and animals that were buried before rotting completely
A sedimentary deposit formed when a salt lake or seabed dried up. Its main chemical is sodium chloride
Minerals containing metals of value are called Mineral Ores.
The process of obtaining coal or other minerals from a mine.
Environmental Impact Statement (EIS)
A document prepared to describe the effects for proposed activities on the environment.
The action of restoring something that has been damaged to its former condition.
Rock or Soil overlying a mineral deposit or other underground feature.
A surface mining technique of extracting rock or minerals from the earth by their removal from an open pit or borrow.
Underground mining is the process of extracting minerals and ores that are buried too far underground to be mined using surface mining methods.
A time in history when early humans used tools and weapons made out of stone.
A metal made by combining two or more metallic elements.
A hard grey rock consisting of nearly pure silica.
The shaping of a stone implement by striking or chipping off flakes with another stone or a piece of wood, bone, or antler.
The remains or impression of a prehistoric plant or animal embedded and preserved in rock.
The buckling of rocks caused when rocks are under pressure from both sides.
A Scientist who studies Fossils.
The age of a rock compared with the age of another rock.
An Animal that eats other Animals.
Animals that eat Dead Plant and Animal material.
Cavity in a rock that shows the shape of the hard parts of an organism; types of fungi found growing on the surface of foods.
Fossils that provide evidence, such as footprints, that an organism was present when the rock was formed.