Consider the following statements regarding the production of bauxite in India.
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In India, the largest deposits of bauxite occur in the Dharwar rock systems.
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Jharkhand is the largest producer of bauxite in India.
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Most of the bauxite is found in the laterite rocks on the plateau or hill ranges of the peninsula.
Which of the statement(s) given above is/are INCORRECT?
- AOption (a)
1 only
- BOption (b)
2 only
- COption (c)
Both 1 and 2
- DOption (d)
3 only
View answer & explanationHide answer & explanation
Correct answer
Both 1 and 2
Why this answer is correct
The correct answer is 3) Both 1 and 2.
Key Points
- Statement 1: The claim that the largest deposits of bauxite in India occur in the Dharwar rock systems is incorrect. Bauxite deposits in India are primarily found in laterite and lateritic rocks, which are formed through the leaching process. The major bauxite-producing regions are associated with the Eastern Ghats and are not limited to the Dharwar rock systems. Hence, this statement is incorrect.
- Statement 2: The assertion that Jharkhand is the largest producer of bauxite in India is incorrect. The state of Odisha is the largest producer of bauxite in India, contributing to over 50% of the country's total production. Major deposits in Odisha are found in areas like Koraput, Kalahandi, and Rayagada. Jharkhand, while significant, is not the largest producer. Thus, this statement is also incorrect.
- Statement 3: It is correct that most of the bauxite in India is found in laterite rocks located on the plateaus and hill ranges of the peninsular region. This includes states like Odisha, Chhattisgarh, Maharashtra, and Andhra Pradesh. These regions are highly suitable for the formation of bauxite due to the tropical climate and weathering processes. Hence, this statement is correct.
- The question asks for the INCORRECT statements, which are Statement 1 and Statement 2. Therefore, the correct answer is 3) Both 1 and 2.
Additional Information
- Bauxite:
- Bauxite is the principal ore of aluminium. It is composed mainly of aluminium hydroxide minerals like gibbsite, boehmite, and diaspore, along with iron oxides and silica.
- It is a result of intense chemical weathering in tropical and subtropical regions, forming lateritic soils rich in aluminium content.
- Bauxite is used for the production of alumina (Al2O3), which is further refined to produce aluminium metal.
- India is the fifth-largest producer of bauxite globally, with significant reserves located in states like Odisha, Andhra Pradesh, Chhattisgarh, Maharashtra, and Gujarat.
- Major Bauxite Reserves in India:
- Odisha: Contains the largest reserves, especially in areas like Panchpatmali and Baphlimali hills.
- Chhattisgarh: Known for bauxite deposits in the Maikal hills and surrounding districts.
- Maharashtra: Important deposits are found in the Kolhapur district.
- Jharkhand: Deposits are located in areas like Ranchi and Gumla.
- Andhra Pradesh: Bauxite deposits are found in the Eastern Ghats, particularly in the Visakhapatnam region.
- Uses of Bauxite:
- Primary raw material for the production of aluminium.
- Used in the manufacture of refractory materials, abrasives, cement, and chemicals.
- Bauxite is also used in industries like metallurgy, construction, and electronics.
- Important Geological Characteristics:
- Bauxite deposits are generally found in plateau regions and are associated with tropical weathering processes.
- They occur in lateritic terrain and are often found in association with iron and manganese ores.
- India's bauxite reserves are estimated to be around 3.9 billion tonnes, making it a crucial resource for the country’s industrial development.
Important Points
- Global Bauxite Production: India ranks behind countries like Australia, Guinea, China, and Brazil in bauxite production. Australia is the largest producer globally.
- Aluminium Industry in India: Major aluminium producers in India include National Aluminium Company (NALCO), Hindalco Industries, and Vedanta Resources.
- Environmental Concerns: Bauxite mining often results in land degradation, deforestation, and pollution. Sustainable mining practices are essential to mitigate these impacts.
- Government Policies: The Indian government has introduced policies to encourage mineral exploration and improve mining efficiency, including the National Mineral Policy 2019.