UPSC Mains GEOLOGY-PAPER-I 2021

13 Questions • 190 Marks • With Detailed Model Answers

1
10 Marks150 Wordseasy
Explain what is ring of fire ? How many plates and geographic areas are associated with ring of fire ?
GeographyGeology
2
10 Marks150 Wordsmedium
What is Geographic Information System (GIS) ? Explain the concepts, components and functions of GIS.
GeographyTechnology
3
10 Marks150 Wordsmedium
Discuss stereoscopy and its advantages in aerial photo interpretation. Add a note on elements of photo interpretation.
GeographyGeologyRemote Sensing
4
10 Marks150 Wordshard
What is stereographic projection in structural geology? Discuss its types, nomenclature and different types of geological plotting technique in a stereonet.
GeologyStructural Geology
5
10 Marks150 Wordsmedium
Discuss stress and strain ellipsoids using neat diagrams.
GeologyGeophysics
6
20 Marks150 Wordsmedium
What are lithospheric plates ? Discuss the theory of plate tectonics. Which plates were involved when a major earthquake caused tsunami in Indian Ocean in 2004 ?
GeologyGeophysics
7
20 Marks150 Wordsmedium
Discuss the geomorphic processes. Cite any four aggradational and four degradational land forms associated with fluvial processes.
GeographyGeology
8
20 Marks150 Wordshard
Describe stratigraphy and depositional environment of Gondwana Supergroup and discuss why only certain intervals of Gondwana succession are rich in coal seam?
GeologyPaleontology
9
15 Marks150 Wordsmedium
What are trace fossils ? Describe the modes of preservation of trace fossils and comment on their geological significance.
GeologyPaleontology
10
15 Marks150 Wordsmedium
Describe various types of Dam with suitable sketches. Comment on the geological conditions required for site selection for each type of Dam.
Engineering GeologyCivil Engineering
11
20 Marks150 Wordsmedium
Give a brief account of sources of groundwater pollution in India and discuss the management of groundwater resources.
GeographyEnvironmentIndia
12
15 Marks150 Wordsmedium
What are microfossils? Discuss the application of microfossils in petroleum exploration.
GeologyPaleontologyPetroleum Engineering
13
15 Marks150 Wordshard
What are mass extinctions ? Comment on the various hypothesis proposed for the causes of Permian-Triassic mass extinction.
GeologyPaleontologyEnvironment