Which of the following statements are correct? 1. Sediments of Gondw

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Which of the following statements are correct?

  • 1. Sediments of Gondwana System were deposited under marine condition.
  • 2. Rocks of Gondwana System are fossiliferous.
  • 3. Rocks of Gondwana System contain metallic mineral deposits.
  • 4. Gondwana deposition took place in downfaulted trough.

Select the correct answer using the code given below.

1, 2 and 3
1, 2 and 4
2 and 4 only
1 and 3 only
This question was previously asked in
UPSC CAPF – 2013
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The correct statements regarding the Gondwana System are that its rocks are fossiliferous and deposition took place in downfaulted troughs. Statements 1 and 3 are incorrect.
The Gondwana System is renowned for its extensive coal deposits in India, formed from plant material accumulated in terrestrial (fluviatile and lacustrine) environments. The deposition occurred in large, elongated basins or troughs created by faulting (rift valleys). These rocks are highly fossiliferous, containing plant, fish, reptile, and amphibian fossils, crucial for understanding the palaeoclimate and palaeogeography of the supercontinent Gondwana.
Statement 1 is incorrect because Gondwana sediments in India were primarily deposited under fresh-water fluviatile and lacustrine conditions, not marine. While marine incursions occurred in some Gondwana basins globally, the dominant mode of deposition in India was terrestrial. Statement 3 is incorrect because the Gondwana System is primarily known for non-metallic mineral deposits like coal, sandstone, and clay. Metallic mineral deposits are more commonly associated with older rock systems like the Dharwar and Archean systems.

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