How Himalaya Happen ?


How Himalaya happen? Himalaya has a long history for its birth. Even though there are many doubts and contradiction about the history of Himalaya, but there are the scientific evidence about the history of it.The Himalaya is the highest and the youngest range in the world. The Himalaya occupied the area was under a deep sea. Geologists have named it as Tethys Sea. This vast sea had existed between the Indiana and the Asian continents.

History Of Himalaya

About 230 million years ago Indian sub-continent still lay down in the southern hemisphere, near by the South Pole as a part of the Gondwana Continent.

The Gondwana Continent that composed of Indian sub-continent still lay down in the southern hemisphere, near by the South Pole as a part of the Gondwana Continent.

The Gondwana Continent that composed of Indian sub-continent, Africa, South America, Australia and Antarctica and it has since the drifted northward splitting into each continents.

The Tethys Sea become narrow and squeezed and the Himalaya began rise from the bottom of the sea only about 45-50 million years ago when Indian sub-continent firstly collided with the Asia in the northern hemisphere.

The bed of Tethys Sea was crushed into numerous fractured and faults in an east-west direction. The collision still continues and today Indian sub-continent pushed on Eurasia northwards at the rate of 5 cm per year. The enormous amount of energy that is involved duding this process made Indian crust to break and was sliced into several rocks. One part of the scaled escaped upwards and appeared as the first mountains of the Himalayas: the Tibetan marginal mountains were born.

During this process the northern edge of the Indian sub-continent moved upward and outward towards along to major thrusts ( plans along which the rocks breaks) named as ( from north to south); The Main Central Thrust(MCT), Main Boundary Thrust (MBT), and the Main Frontal Thrust (MFT). The trace of the youngest thrusts such as MBT and MFT  can be still clearly seen on ground when observed on aerial phtograph.

As the Indian plate continues to push Eurasia at present, the Himalaya is still raising. A present the average vertical rate of uplift of the Himalaya is approximately 2 mm per year.

However, though the Himalaya is quite young, geologic age of the rocks in the fields are very old. It may be as old as about 2000 million years. These rocks were deposited in the Tethys Sea that existed between the Indian continent and Asian landmass. The rocks we find today at the top of Mount Everest were deposited nearly 400 million years ago at the bottom of the Tethys Sea. The remnants of marine life found today embedded in the rocks of Everest are the proof that these rocks were deposited under the sea.

Continuous horizontal compression was so much increased and huge masses of rock from the southern edge of the Indian sub-continent were pressed together uplifted and thrust over a long towards the south at this way the original  Himalayan geologic structure were created.

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