Difficulty: Medium
Correct Answer: Sirohi district in Rajasthan
Explanation:
Introduction / Context:
Tungsten is a strategic metal used in high strength alloys, electrical components and cutting tools. For this reason, any new discovery of tungsten deposits attracts attention from geologists and policy makers. The Geological Survey of India has conducted systematic surveys to locate tungsten bearing areas. This question asks the learner to associate the correct location with such a discovery and thereby tests knowledge of mineral distribution beyond the more commonly discussed iron, coal and bauxite deposits.
Given Data / Assumptions:
Concept / Approach:
The concept here is detailed mineral geography, going beyond the most popular minerals. The learner needs to be familiar with lesser known deposits that sometimes feature in competitive examinations. Rajasthan is a mineral rich state with deposits of lead, zinc, copper and tungsten, among others. The approach is to recall that Sirohi district in Rajasthan has been highlighted in exam oriented materials for tungsten discoveries, while Agucha is known for lead zinc and Tuensang is better known for other minerals and strategic location rather than tungsten.
Step-by-Step Solution:
Verification / Alternative check:
To verify, one can cross check standard exam preparation books and mineral tables where tungsten deposits in India are listed. These often mention Degana and regions in Rajasthan and may include references to Sirohi district. In contrast, Agucha features under lead zinc mining, while the Thar Desert is grouped under desert landforms and hydrocarbons. Such cross referencing confirms that Sirohi in Rajasthan is the location associated with the tungsten discovery by the Geological Survey of India in the context of competitive exam syllabi.
Why Other Options Are Wrong:
Agucha in Rajasthan is a very important mining area, but it is primarily known for lead and zinc, not tungsten. The Thar Desert is a broad desert region with sand dunes and does not match the specific description of a tungsten discovery site. Tuensang in Nagaland is important from strategic and regional perspectives but is not the textbook example used for tungsten deposits in India. None of the above is incorrect because one option, Sirohi district in Rajasthan, matches the intended association in exam oriented mineral geography.
Common Pitfalls:
A common mistake is to select Agucha simply because it is a famous mining location in Rajasthan, without considering which metal it produces. Another pitfall is to over generalise that any mineral question about Rajasthan might relate to the Thar Desert. Some learners also ignore lesser known districts like Sirohi due to weaker map practice. Regular revision of mineral maps and correlating each mineral with its major producing district can help avoid these confusions.
Final Answer:
The discovery of tungsten deposits mentioned by the Geological Survey of India is associated with Sirohi district in Rajasthan.
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