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#Himalayas

2 public questions tagged with this topic.

Natural History of Indian subcontinent

The youngest and highest mountain range in the world belongs to

Himalayas are classified as youngest fold mountains formed during Alpine orogeny by collision of Indian tectonic plate drifting northward with Eurasian plate approximately 50-60 million years ago, closing Tethys Sea. Continuous convergence still raises Himalayas about 5 mm yearly, causing frequent earthquakes and rugged topography with sharp peaks, deep gorges. Rocks are mainly sedimentary, metamorphic unconsolidated compared to ancient Aravallis 2 billion years and Vindhyas. Himalayan youth explains highest elevation Everest 8848 m making them highest range globally. Knowledge of this distribution aids in understanding endemism patterns and UNESCO heritage site designations across India.

Ref: NCERT Geography Young Fold Mountains Himalayas Formation; USGS Plate Tectonics India Collision

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Natural History of Indian subcontinent

Which zone acts as a climatic barrier protecting India from cold northern winds?

Himalayan zone forming continuous 2400 km arc with average width 200 km and height above 6000 meters functions as formidable climatic barrier. It prevents penetration of frigid Siberian continental winds into Indian subcontinent, maintaining relatively mild winter in Gangetic Plains, and intercepts southwestern monsoon forcing heavy precipitation on southern slopes while creating rain shadow Tibetan plateau north. This orographic influence defines Indian monsoonal climate, biodiversity distribution, and cultural separation between Indo-Gangetic and Tibetan biota, acting as protector shield for India. This example illustrates how ecological adaptations correlate with biogeographic zonation and conservation prioritization in Indian context.

Ref: NCERT Geography Physical Features Himalayan Climatic Barrier; WII Himalayan Zone Barrier Function

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