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Geology

Horizontales
A fossil that allows you to identify the age of a rock
Gives you an estimate of age based upon where a layer of rock occurs
When physical forces (wind, rain, running water) break down rock
Forms in a divergent boundary between two oceanic plates
Sliding in opposite directions
Wegener's idea that the continents used to all be connected and had moved apart
Movement based upon differing temperature
part of Interior of earth that exhibits plasticity
Rocks that have undergone extreme pressure and heat
A group of minerals bound together
Changes that do not alter a material
Ancient super continent
Rocks made from fine particles of rock compacted and cemented together
Verticales
Solid part of center of the earth
Occur when two continental plates collide
Theory that explains the movement of plates
Occurs between an oceanic plate and a continental plate
A law of geology that says that an igneous intrusion is younger than the rock it crosses
Non-reversible changes that change a material permanently
A more accurate date based upon radioactive decay
Coming together
Rocks made from cooled magma
When half of the radioactive material in a sample has decayed