Dynamic Equilibrium

In: Historical Events

Submitted By BDC2013
Words 400
Pages 2
Terms to define

Dynamic Equilibrium – this states that the seismic uplift of an area is balanced by the disclosure from that area; as a landscape is lifted slopes can become steeper and bigger. This means more surface area which can create weathered rock and/or soil particles. These rock and/or soil particles are removed through difference forces from the surface and then returned to the sea bed for sedimentation which will eventually uplift and start the processes over.

Uniformitarianism – "the present is the key to the past" as summarized by Charles Lyell; even though most geologists state that this word is a synonym for actualism. Uniformitarianism is the assumption that the same natural laws and processes that are used today have always been used in the universe in the past and apply everywhere.

Actualism – is a basic tenet of science and applies on all time scales; if a physicist performs an experiment at any time they will assume that an identical experiment will yield the same result. Geologists have an understanding that Earth's processes have operated at different rates at different times.

Rock Cycle – Central to the uniformitarian view of Earth is the rock cycle; which is the endless pathway along which rocks of various kinds change into rocks of other kinds. There are two simple principles that recognize each step of this cycle; intrusive relationships and inclusions. The principle of intrusive relationships state that intrusive igneous rock is always younger than the rock it is invading. When it comes to the inclusions. this states that when fragments of one body of rock are found within a second body of rock, the second body is always younger than the first. The rock cycle is actually many kinds of cycles that can become part of another rock rather that are similar or different.

Water Cycle – Water moves through earth in a…...

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