Jurassic age ‘Natural Arch’ in Odisha
The state unit of Geological Survey of India (GSI) has proposed to declare the ‘Natural Arch’ in Kanika range of Sundargarh forest division a Geo Heritage Site.
Image Source: The New Indian Express
About the Natural Arch:
- Location: Chhengapahar reserve forest near Brahmani village in Kanika range of Sundargarh in Odisha.
- Specifications: Oval-shaped arch
- Time period: 184 to 160 million years in the lower to middle Jurassic age.
- Reasons for Formation: Due to fault activities and nature of lithotype which have enhanced the process of sub-aerial weathering over a long period.
- Significance: The natural arch and its surrounding area is a storehouse of different primary sedimentary structures like planner and cross-bedding along with occasional current ripples signifying high energy fluvial environment during sedimentation.
- Other Arches in India: Tirumala hills in Tirupati and Andaman and Nicobar.
- They are the sites containing geo-relics and phenomena, stratigraphic type sections, geological structures and geomorphic landforms including caves, natural rock-sculptures of national and international interest
- They include such portions of land adjoining the site that may be required for their conservation or to access to such sites.
- The GSI declares geo-heritage sites/ national geological monuments for protection and maintenance.
About Geological Survey of India (GSI):
News Source: The New Indian Express