Important Facts For Prelims
Two New Geological Heritage Sites
- 01 Apr 2022
- 5 min read
Why in News?
Recently, Geological Survey of India (GSI) has identified two geological heritage sites in the Indian Himalayan Region of India.
- The sites identified are Siwalik Fossil Park, Himachal Pradesh and Stromatolite bearing Dolomite / Limestone of Buxa Formation of Buxa Formation, Sikkim.
- With inclusion of these two sites, there are 34 Geological Heritage Sites in India.
- Earlier, the GSI identified certain geological sites across the Northeast for promotion of geo-tourism.
What are the Key Points?
- Siwalik Fossil Park (Himachal Pradesh): The Siwalik Fossil park displays a rich collection of vertebrate fossils recovered from the Siwalik rocks of the area of Plio-Pleistocene age (2.6 million to 11,700 years ago).
- The deposition of Siwalik sediments took place in the narrow linear depression, called the 'fore deep', which started developing in front of the Himalayas since the inception of its uplift in the middle Miocene (23 million years to 2.6 million years ago).
- Stromatolite bearing Dolomite / Limestone of Buxa Formation of Buxa Formation (Sikkim): This Geoheritage site at Mamley exposes lithounits of Buxa Formation, Daling Group of Proterozoic age (2.5 billion years to 541 million years ago).
- The dolostones (sedimentary rock) are profusely stromatolitic (Precambrian algal structures). This site provides one of the rare examples of early life in Sikkim Himalaya.
- The Precambrian is the earliest of the geologic ages, which are marked by different layers of sedimentary rock.
What are Geo-heritage Sites?
- Geo-heritage refers to the geological features which are inherently or culturally significant offering insight to earth’s evolution or history to earth science or that can be utilized for education.
- Geological Survey of India (GSI) is the parent body which is making efforts towards identification and protection of geo-heritage sites/national geological monuments in the country.
Geological heritage site /National geological monument |
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ANDHRA PRADESH |
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KERALA |
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TAMILNADU |
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MAHARASHTRA |
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GUJARAT |
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RAJASTHAN |
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KARNATAKA |
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CHATTISGARH |
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HIMACHAL PRADESH |
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ODISHA |
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JHARKHAND |
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NAGALAND |
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SIKKIM |
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What are UNESCO Global Geoparks?
- These are single, unified geographical areas where sites and landscapes of international geological significance are managed with a holistic concept of protection, education and sustainable development.
- While there are 169 UNESCO Global geoparks spread across 44 countries, India is yet to have one of its own.
What is the Geological Survey of India?
- It was set up in 1851 primarily to find coal deposits for the Railways. Presently, GSI is an attached office to the Ministry of Mines.
- The main functions of the GSI relate to creation and updation of national geo-scientific information and mineral resource assessment.
- It is headquartered in Kolkata.