Plate Tectonics According to geological theory, crust is mainly composed of seven large and some small dynamic solid plates, which are floating on the lower floating warm germ substances. Movement of the plate and interaction is thought to be the controller of significant geological phenomena such as earthquake, volcanic eruption, mountain formation. There are three types of cross-border plate known to be known. Such as: the coordinates of the coordinates, the transverse boundary and the changing fault range.
Limit converge when the two plates convergent advancing towards each other and finally clashed, a plate buried under the other. This type of plate collision creates mountain climates and the volcanic activity takes place around the plate endpoint.
In this case, two plates move away from each other. This type of plate boundaries result in new sea level and sea volcanoes.
The transition fault range when two plates cross each other, then it is called the deflection fault boundary. Earthquake occurs in three types of plate movement.
Most of the Bengal basin has been read in Bangladesh. The origin of the collision between the Indian Plate and the Asian Plate Before the Cretaceous era (2.5 billion years ago) with parts of Bangladesh (Greater Rangpur-Dinajpur Zone), connected with Indian Plate, Antarctica, Africa, Australia and South America, a large continent called Gondualland was established. Remnants of Bangladesh did not exist then. Then due to the collapse of the Indian plate due to the crack in Gondualland and the last collision with the Asian Plate, the Himalayan Mountains and Deltaic Plains of Bangladesh were created.
Periodic clash between Indian plate and Asian plate was first occurring during the early emergence of the Himalayas in the Eocene era (5 million to 5 million years ago). The last sign of the Tethys Sea between the Indian Plate and the Asian Plate probably disappeared during the Nabin Eocene era (from three and a half to four million). At this time the Indian plate convergence has changed from north to northeast with increasing clashes with Southeast Asia. Plate clashes continued from the Oligocene era (three and a half years ago) and the Himalayan frozen growth began to descend when the original Bengal Basin was filled in the south of the huge riverbank. After the rapid decline of the Miocene (after 25 billion years) in the basin, rapid growth of the Himalayan cycles led to the formation of large deposits as well as large-scale delta evolution. The structure of the Great Delta called the Ganges-Brahmaputra delta is still in process Have continued. Meanwhile, under the Asian Plate of Indian Plate, subdivision created a junction line in the northern Himalayas. And before the Indo-Burman mountain range, the eastern plate is marked as the region of conflict. The Indian plate clash with the Asian Plate continues to this day. Sometimes the earthquake in the area adjacent to the plate proves this. [Badrul Imam]
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