Basic Principle of Plate Tectonic Theory and its Relationship with Spread of Volcanoes and Earthquake
According plate tectonic theory movement of earth’s crust there are 3 kinds those are movement closing each other, movement come away each other and movement meeting each other.
1. The movement of plate that is closing each other will cause collision where one of the plate will enter under the other. The product of collision region forms of deep trough, that is usually strong earthquake path. Behind the region will be formed series of magmatic and volcanic activities also various of sedimentation basin.
2. The movement of plate moves away each other will cause rarefraction and stretching of earth’s crust and finally happens the discharging of new material from mantle forms magmatic or mountain path. Example is the formation of volcano in mid oceanic ridge in Pacific Ocean and Africa Continent.
3. Movement meeting each other is characterized by the presence of lateral fault like San Andres Big fault in America.
The movement of Earth’s crust plate that collide each other will form sudaction zone and produces force that works whether horizontal or vertical, that it will form the fold mountain, magmatic or volcanic path, the fault of rock, and earthquake path also the formation of certain tectonic region. Besides there are also formed the various of kinds the sedimentation basin of sedimentary rock like trench, front arc basin, and the basin between the mountain and back arc basin in volcanic or magmatic path is usually formed the mining zone of gold, silver and copper, while in the collision region will be found chromite mineral. Each tectonic region has certain chraracteristic or indication, whether rock, mining, structure and its earthquakeness.