Which one of die following statements is not correct regarding the Himalayas?a)Himalayas have nappe and recumbent foldsb)Himalayas rose up from the Tethys Seac)Himalayas contain three mountain ranges-Siwaliks, Great Himalayas and Kunlun Rangesd)The orogeny took place in the Tertiary EraCorrect answer is option 'C'. Can you explain this answer?

Question

Answer

The Himalayas are one of the most renowned mountain ranges in the world. They are a result of intense geological activity over millions of years. Let's discuss the options given in the question:

Nappe and Recumbent Folds
The Himalayas have nappe and recumbent folds, which are a type of geological structure formed due to the folding of rocks. The nappe folds are due to the overthrusting of the rocks from one side onto the other. The recumbent folds are formed when the rocks fold back on themselves, creating a horizontal fold. Therefore, the statement 'Himalayas have nappe and recumbent folds' is correct.

Rising from Tethys Sea
The Himalayas rose up from the Tethys Sea, which was a large body of water that existed millions of years ago. The Indian Plate collided with the Eurasian Plate, resulting in the formation of the Himalayas. This process is known as orogeny. Therefore, the statement 'Himalayas rose up from the Tethys Sea' is correct.

Orogeny in the Tertiary Era
The orogeny, which is the process of mountain formation, took place in the Tertiary Era. It was a period of geological time that lasted from 66 million to 2.6 million years ago. Therefore, the statement 'The orogeny took place in the Tertiary Era' is correct.

Three Mountain Ranges
The statement 'Himalayas contain three mountain ranges - Siwaliks, Great Himalayas and Kunlun Ranges' is not correct. The Himalayas are composed of several parallel mountain ranges, but Siwaliks and Kunlun Ranges are not part of the Himalayas. The Siwaliks are a range of hills located at the foothills of the Himalayas, while the Kunlun Ranges are located in China, to the north of the Himalayas.

In conclusion, the correct answer is option 'C' - 'Himalayas contain three mountain ranges - Siwaliks, Great Himalayas and Kunlun Ranges' is not correct.

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