Question

write a short note on the great Indian desert

Answer 1

Frnd,

Thar Desert, also called Great Indian Desert, arid region of rolling sand hills on the Indian subcontinent. It is located partly in Rajasthan state, northwestern India, and partly in Punjab and Sindh (Sind) provinces, eastern Pakistan.
The Thar Desert covers some 77,000 square miles (200,000 square km) of territory. It is bordered by the irrigated Indus River plain to the west, the Punjab Plain to the north and northeast, the Aravalli Range to the southeast, and the Rann of Kachchh to the south. The subtropical desert climate there results from persistent high pressure and subsidence at that latitude. The prevailing southwest monsoon winds that bring rainto much of the subcontinent in summer tend to bypass the Thar to the east. The name Thar is derived from thul, the general term for the region’s sand ridges.
The Thar’s desert sands overlie Archean (early Precambrian) gneiss (metamorphic rocks formed between 4 billion and 2.5 billion years ago), Proterozoic (later Precambrian) sedimentary rocks (about 541 million to 2.5 billion years old), and more-recent alluvium (material deposited by rivers). The surface consists of aeolian (wind-deposited) sand that has accumulated over the past 1.8 million years.

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Answer 2

Answer:

The Indian desert lies to the west of the Aravali hills. It is an uneven Sandy plains covered with sand dunes.

Barchans cover larger part of the desert. Near Indo Pakistan border longitudinal sand dunes are more common.

It has arid climate with scars vegetation and rainfall below 150 mm per year.

Rovers/streams only during the rainy season and soon afterwards disappear in sand. They do not have enough water to reach the sea. River Luni is the only largest river in this area.