India - Sukinda Valley - Pure Earth
Today, about 97 percent of the nation’s deposits are found in the mineral-rich earth of the Sukinda Valley in the State of Orissa, which is the location of a number of open cast chrome ore mines. Overburden and tailings are located all long the valley and impact the local water systems.
Chromite mining pollution, environmental impact, toxicity and ...
2020年9月24日 · Sukinda is a major mining site of Odisha, India, polluted by chromium, which is highly toxic in its hexavalent form. The Sukinda valley is a rich source of chromites, amounting to almost 95% of Cr available in India, and is the fourth most polluted site worldwide.
(PDF) Geology, Mining and Environment with an Overview of Sukinda …
2017年7月26日 · Sukinda valley in Jajpur district of Odisha contains about 98% of chromite reserve and it is exploited mostly by opencast mining process since 1950.
Location map of Sukinda Valley along with different mining leases
Sukinda Valley, one of the highly polluted areas of the world is generating tons of mining waste and causing serious health and environmental issues in its surroundings.
Chromite Mining in Sukinda Valley in Odisha - Countercurrents
2019年4月1日 · The Sukinda ultramafic complex (Longitude: 85° 40′ E -85° 52′ E and Latitude: 20° 40′ N- 20° 57’N) has nearly 95% of the total chromite reserves of the country. This area is part of Jajpur...
Development of Crustal-Scale Shear Zones at the Singhbhum …
2021年10月31日 · A number of crustal-scale shear zones have developed along the southern margin of the Singhbhum Craton, in the boundary with the Neoarchean Rengali Province and the Meso-Neoproterozoic Eastern Ghats Belt.
Geological features and origin of the chromite deposits of sukinda …
The chromiferous ultramafic rocks of Sukinda Valley (21°0'–21°5'N:85°43'–86°0'E) of Orissa are intrusive into the Iron-Ore Supergroup (2,950–3,200 Ma) at the eastern periphery of the Indian Precambrian shield. Both laterally and vertically, chromite occurs as persistent layers, lenses or pockets in the serpentinized and silicified ...
(PDF) Geology, Mining and Environment with an Overview of Sukinda …
The Sukinda ultramac eld is conned to an east-west trending valley lying between the Daitari hill range in the north and the Mahagiri range in the south. The area has a width of 2 to 5 km and extends for a length of nearly 25 km in an ENE-WSW direction from Kansa in the east to Maruabil and beyond in the west.
The ground water in Sukinda valley occurs at a depth of 8 to 11metres, and when it comes in contact with atmospheric air and chrome ore during mining, it gets contaminated with hexavalent chromium beyond permissible limit (Pattanaik et al.
Geology, Mining and Environment with an Overview of Sukinda …
Sukinda chromite mines produces ore of chromium (Cr) i.e. chromite (FeCr 2 O 4) which is the only economic source of chromium. Sukinda chromite valley of Odisha is the largest chromite deposit (193million tons of total reserve)[3] in India and contributes 98% [4] of the country’s chromite ore which is produced by opencast mines.