Theories of Continental Movement, Part.1
1. Plate Tectonic Theory
Plate tectonic is a theory that explains earth’s dynamic process about the formation of mountain path, volcanic path, earthquake path, and sedimentation basin on the surface of Earth that is caused by movement of the plate.
According to this theory earth’s crust (lithosphere) can be assumed as very strong raft and relatively cold that floats on elastic astenosphere mantel and very hot, or it can be equaled to icy island that floats on sea water. There are two kinds of earth’s crust those are oceanic crust that is made up of rock with base property and very base property, those are found in very deep ocean, and continental crust that is made up of acidic rock and thicker than oceanic crust. Earth’s crust covers all of earth’s surface, but the effect of presence of heat flow that flows in the astenophere caused this earth’s crust breaks to be several smaller parts called plate of earth’s crust. Therefore, plate can consists of continental crust, oceanic crust or both. That convension stream is main power source that causes movement of the plate.
In the theory is explained several analysis among others are as follows:
1. The presence of geological formation between east coast of American continent with west coast of Europe and Africa. The condition proves that geological formation in west coast of Africa is equal to east coast of America.
2. The presence of Greenland Island moves away Europe land with velocity of 36 meters per year. Meanwhile Madagaskar Island moves away South Africa as far as 9 meters per year.
According to Alfred Wegener, continents existing at it is now, formerly formed one continent. Because of the presence of big continent movement in south to west or north, it happens the following things:
1. The oceans and continents float by separately.
2. Atlantic Ocean is more larger because American continent moves to the west direction.
3. The presence of big earthquake along the fault of St. Andreas, near the west coast of United States. In 1929 Alfred Wegener died in snow at Greenland Island, when he made research to prove the truth of his theory.
1. Plate Tectonic Theory
Plate tectonic is a theory that explains earth’s dynamic process about the formation of mountain path, volcanic path, earthquake path, and sedimentation basin on the surface of Earth that is caused by movement of the plate.
According to this theory earth’s crust (lithosphere) can be assumed as very strong raft and relatively cold that floats on elastic astenosphere mantel and very hot, or it can be equaled to icy island that floats on sea water. There are two kinds of earth’s crust those are oceanic crust that is made up of rock with base property and very base property, those are found in very deep ocean, and continental crust that is made up of acidic rock and thicker than oceanic crust. Earth’s crust covers all of earth’s surface, but the effect of presence of heat flow that flows in the astenophere caused this earth’s crust breaks to be several smaller parts called plate of earth’s crust. Therefore, plate can consists of continental crust, oceanic crust or both. That convension stream is main power source that causes movement of the plate.
In the theory is explained several analysis among others are as follows:
1. The presence of geological formation between east coast of American continent with west coast of Europe and Africa. The condition proves that geological formation in west coast of Africa is equal to east coast of America.
2. The presence of Greenland Island moves away Europe land with velocity of 36 meters per year. Meanwhile Madagaskar Island moves away South Africa as far as 9 meters per year.
According to Alfred Wegener, continents existing at it is now, formerly formed one continent. Because of the presence of big continent movement in south to west or north, it happens the following things:
1. The oceans and continents float by separately.
2. Atlantic Ocean is more larger because American continent moves to the west direction.
3. The presence of big earthquake along the fault of St. Andreas, near the west coast of United States. In 1929 Alfred Wegener died in snow at Greenland Island, when he made research to prove the truth of his theory.
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