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Genesis of Persian Gulf


Author: Roozbeh ParsaPour


Persian Gulf is remaining from a big puddle in the past era of geology under the influence of pressure arising from volcanoes of Iran's Plateau and the resistant of Arabia's Plateau against these reactions have caused its creation and expansion. (Ali Darvish Zade 1991) Geologists believe that at the Paleozoic of geology, about 500 million years ago, South Hemisphere's main lands had connected and formed a unit continent called Guadiana. This vast continent included from one side whole of Brazil and South Africa and from another side one part of India and one corner of Iran and Arabia and whole of Australia and South Pole.


About 140 million years ago, at the beginning of the Mesozoic, the split between Europe and America became wider and the split between India and Australia provided the situation for creation of Indian Ocean.45 million years ago, at the beginning of Cenozoic, Atlantic Ocean was discovered. Southern America was parted from Africa and Australia was laid away from South Pole too and moved toward East and then India Ocean was formed. The split between Asia and Africa brought about the elements of genesis of Oman Sea too. About 35million years ago, at the middle of the Cenozoic, the split of Macran was spread and India Peninsula shifted at the beginning toward East and then North and the tail of Macran split transformed to a thin gulf that prove the start of genesis of Pars sea.


Later in consequence of great central motions of Earth, has happened fractures and splits in this continent, India Ocean has extended and has joined to a very vast sea called Tetis. Scientists believe that this very vast and widespread sea had covered the whole of an extensive zone that nowadays is the location of Malaysia Islands and countries like India, Pakistan, Turkey, Iran and Caucasia.
After thousands years (in Cenozoic) Alp, Alborz and Himalaya appeared by massive wrinkles on the earth and the vast sea cut to pieces and formed Black Sea, Caspian Sea, Oral Sea and etc. Following these transformations, 35 millions years ago, in the Cenozoic of geology, India Peninsula moved at the first toward East and then North and in consequence of motions in the tail of Macran split, Pars Sea was appeared. Red Sea and Aden Gulf and the mountains of vast Plateau of Iran are the product of other fractures and motions.


Pars Sea has been very wide and large at the beginning, as the major part of plains of Borazjan, Behbahan and Khuzestan of Iran to Zagross Mountains have been under the water till the end of the Cenozoic of geology and Tigris and Euphrates poured to this sea separately.


South of Asia was threatened by aggressions and overrunning of India Ocean’s water after fractures in Cenozoic and decomposing of Guadiana for many times. Saran dib dissented from India by horrible tides and Malaya, India and Arabia formed a peninsula in the sequence of water transgression and Red Sea was linked to India Ocean by Babolmandab while it had only connected to Mediterranean after the decomposing of Tetis Sea .Nowadays Pars Sea with the latitude about 237473 KMM is the third vastest gulf of the world after Mexico Gulf and Hudson Bay.


It must be said that studies of Parser in Persian Gulf shows more than six levels which it’s effects has detected in the depth of 100meters of Persian Gulf. He’s proved based on Morphologic examples that Persian Gulf has retreated to proximity Hormoz strait and dried at least 3 times so far. But this has occurred before 17-20 thousands years ago.