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Carlsberg Ridge &Afanasy-Nikitin Seamount
Context
Carlsberg Ridge &Afanasy-Nikitin Seamount in Indian Ocean are of India’s interest for which it has submitted applications for exploration to International Seabed Authority.
Carlsberg Ridge:
- It is the northern part of the Central Indian Ridge, a tectonic plate boundary between the African and Indian plates, running along the ocean between India and Africa.
- It was formed nearly 30 million years ago, and has been seismically active with major earthquakes.
- Running along Seychelles and spanning 3,00,000sqkms, the Carlsberg Ridge is rich in polymetallic nodules— meaning, it contains mineral deposits with commercially viable quantities of at least 3 metals. The ridge is thought to contain trace elements of copper, lead, and zinc.
The Afanasy-Nikitin Seamount (ANS) seabed
- The ANS is a major structural feature in the Indian Ocean, rising up above the sea bed but below the surface, and forming a seamount.
- It is 400 km long and 150 km wide, and is located in the Central Indian Basin — southeast to Sri Lanka, right below the equator, to the west of Singapore — and it was formed about 80 million years ago, while dinosaurs still roamed the Earth.
- The Seamount is named after AfanasyNikitin, a 15th century Russian merchant who was one of the first to document his travels to India.
- The ANS seamount is about 3,000 km from India’s coast, and is rich in cobalt, copper, manganese, and nickel.
- Cobalt is in high demand among other metals due to its ubiquitous use in electronics and batteries.
- Nickel is used in electric vehicles as it is resistant to corrosion and oxidation.
- Manganese is also used for lithium ion and alkaline batteries
- Copper is one of the most commonly used metals in electricity
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