Economic Geology [IAS (Admin.) Mains Geology]: Questions 1 - 7 of 29

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Question 1

Appeared in Year: 2016

Describe in Detail Subjective▾

Discuss Maritime Zones.

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Explanation

Maritime Zones

  • Maritime Zone is the area of water surface of any country where there is national rights of that country over mineral and biological resources. Maritime borders are generally used to identify the edge of international waters.
  • There are different types of maritime zones in the sea or ocean.
  • The division into maritime zones is made accord…

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Question 2

Appeared in Year: 2016

Describe in Detail Subjective▾

Bring out the various ecological problems associated with the exploitation and use of oceans and their resources.

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Explanation

Oceans and Resources

  • 71% area of the earth՚s surface is covered by the vast ocean. The vast water reservoir provides resources as well as challenges for us. It is came to known from recent technologies that oceans possess more natural resources than the continents. But man has not developed such techniques to utilize it completely.
  • The marine resourc…

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Question 3

Describe in Detail Subjective▾

With help of sketch map, elaborate on the oil and natural gas reserves in India. (20 marks) (Examrace Test Series 2017)

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Explanation

Oil and Natural Gas Reserves

  • Oil and gas are major fuel resources and provides lubricants and raw materials for many industries.
  • Modern economy is referred to as oil economy for this reason.
  • Petroleum is found in sedimentary rocks of marine origin. Oil is associated with water. of established hydrocarbon reserves is oil …

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Question 4

Appeared in Year: 2017 (IFS)

Write in Short Short Answer▾

What are the characteristics of Volcanics-associated Massive sulphide (VMS) deposits? Discuss about the mineralogy and texture of VMS deposits. (Paper-II)

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Question 5

Appeared in Year: 2017 (IFS)

Write in Short Short Answer▾

Write short notes on the followings (Paper-II)

Placer deposits

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Question 6

Appeared in Year: 2017 (IFS)

Write in Short Short Answer▾

Write short notes on the following: (Paper-II)

Red sea mineralisation

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Question 7

Appeared in Year: 2017 (IFS)

Describe in Detail Subjective▾

What are the characteristic features to recognize any Proterozoic-type carbonate-hosted Pb-Zn deposit? Write a note on the sulphide deposits of Rajpura-Dhariba, Rajasthan. (Paper-II)

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Explanation

Proterozoic-Type Carbonate-Hosted Pb-Zn Deposit

  • The Pb-Zn deposits are hosting rocks from Devonian to Permian carbonate rocks.
  • The basement rocks are igneous rocks of Proterozoic period.
  • The ore forming fluids of carbonate hosted Pb-Zn deposits in this area were derived from carbonate rocks.

Characteristic Features to Recognise Any Proterozoic-Type Car…

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