Why is arabian thar a desert? even it is on the coast of arabian sea?
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It is because the Thar Desert in India! Elsewhere, it must have been a world famous laboratory for the study of climatic fluctuations and hydrological metamorphoses since pre-historic times unwrapping age-old mysteries behind desert landforms on the earth.
The artifacts found recently in deep canal cut and deposit of finely laminated black clay (locally called kaajalia) amply proves that some thousands years ago there were heavy rainfall and water bodies full of water in the vast landform where, today, the great Thar Desert spreads. It is also found from different recent studies that about one million years ago much before the formation of Thar Desert, the region was watered by mighty rivers comparable in size to the Indus and the Ganga. It was frequented by regular rainfall; good and lush vegetation prevailed on the landform. A half-million years ago, however, powerful tectonic movements distorted the river system and the great streams began to slow down and meander. Struck by periodic natural catastrophes the region started to experience scant rainfall and the rivers thereupon became consequentially dried. With the prevalence of strong winds the sand and alluvial particles were blown across and got deposited on the landform. The region experienced a hide and seek like interplay between aridity and humidity here over thousands of years. Man has been part of this landform since then. The nomadic life style that is seen today in the desert is a vestige of the period in which the Thar was full of lush vegetation. Gradually, the landforms used to pass through regular climatic and hydrological variations for a long time and aridity perpetuated on the landform. The Southwest monsoon that bring copious rainfall in several parts of India scantly drizzles over the desert as the monsoon winds blow parallel to the Aravalli Range that guards it and also get devoid of sufficient moisture when they reach here. Thus, formed the 77,000 square miles of Great India Desert; and it’s now spread between the Aravalli Hills in the north-east, the Great Rann of Kutch along the coast and the alluvial plains of the Indus River in the west and north-west. It is mostly situated in western Rajasthan and eastern part of Pakistan; also extends to Gujarat, Punjab and Haryana in India. The Great Indian Desert holds utmost significance in terms of economic development not only for Rajasthan but also for India. It also is a vital area for geological and climatic studies.
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The artifacts found recently in deep canal cut and deposit of finely laminated black clay (locally called kaajalia) amply proves that some thousands years ago there were heavy rainfall and water bodies full of water in the vast landform where, today, the great Thar Desert spreads. It is also found from different recent studies that about one million years ago much before the formation of Thar Desert, the region was watered by mighty rivers comparable in size to the Indus and the Ganga. It was frequented by regular rainfall; good and lush vegetation prevailed on the landform. A half-million years ago, however, powerful tectonic movements distorted the river system and the great streams began to slow down and meander. Struck by periodic natural catastrophes the region started to experience scant rainfall and the rivers thereupon became consequentially dried. With the prevalence of strong winds the sand and alluvial particles were blown across and got deposited on the landform. The region experienced a hide and seek like interplay between aridity and humidity here over thousands of years. Man has been part of this landform since then. The nomadic life style that is seen today in the desert is a vestige of the period in which the Thar was full of lush vegetation. Gradually, the landforms used to pass through regular climatic and hydrological variations for a long time and aridity perpetuated on the landform. The Southwest monsoon that bring copious rainfall in several parts of India scantly drizzles over the desert as the monsoon winds blow parallel to the Aravalli Range that guards it and also get devoid of sufficient moisture when they reach here. Thus, formed the 77,000 square miles of Great India Desert; and it’s now spread between the Aravalli Hills in the north-east, the Great Rann of Kutch along the coast and the alluvial plains of the Indus River in the west and north-west. It is mostly situated in western Rajasthan and eastern part of Pakistan; also extends to Gujarat, Punjab and Haryana in India. The Great Indian Desert holds utmost significance in terms of economic development not only for Rajasthan but also for India. It also is a vital area for geological and climatic studies.
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