During which geological period were the Shivalik ranges formed in Utta...
The Shivalik ranges in Uttar Pradesh were formed during the Tertiary Period, as a result of deposition and upliftment of sedimentary and metamorphic rocks in the Tethys Sea.
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During which geological period were the Shivalik ranges formed in Utta...
Formation of the Shivalik Ranges
The Shivalik ranges, also known as the Siwalik Hills, are a significant geological feature located in the northern part of India, including Uttar Pradesh. Their formation is primarily attributed to geological processes during the Tertiary Period.
Tertiary Period Overview
- The Tertiary Period spans from approximately 66 million to 2.6 million years ago.
- It is part of the Cenozoic Era and is divided into several epochs, including the Paleocene, Eocene, Oligocene, Miocene, and Pliocene.
Geological Processes Involved
- The Shivalik ranges were formed due to the collision of the Indian Plate with the Eurasian Plate.
- This tectonic activity led to significant uplift and folding of sedimentary rocks, resulting in the formation of these hills.
- The deposition of sediments from the erosion of the higher Himalayas contributed to the formation of the Shivalik ranges.
Characteristics of the Shivalik Ranges
- The Shivalik hills consist mainly of sandstones, conglomerates, and mudstones.
- They are characterized by their steep slopes and valleys, shaped by river erosion.
Significance of the Shivalik Ranges
- The Shivalik ranges serve as a natural barrier between the plains of the Ganges and the Himalayan foothills.
- They play a crucial role in the ecology and hydrology of the region, influencing local climate patterns.
In conclusion, the Shivalik ranges were formed during the Tertiary Period due to tectonic activities and sediment deposition, making option 'C' the correct answer.