Geology IAS Paper 1 UPSC 2018 with Solutions

Geology Optional Paper 1 UPSC 2018 - Question Paper with Solutions 

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SECTION-A

1. Answer the following questions in about 150 words each:

Geology 1a "Geomorphology is intimately related to tectonics." Explain with suitable examples. UPSC 2018, 10 Marks

Geology 1b What are stream order and mean bifurcation ratio of a drainage basin ? Discuss their significance in the morphometric analysis of a drainage basin. UPSC 2018, 10 Marks

Geology 1c Discuss about the Circum-Pacific volcanic belt. Which five countries have the highest volcanic threat in terms of human loss? UPSC 2018, 10 Marks

Geology 1d Differentiate between True Colour Composite (TCC) and False Colour Composite (FCC). Explain its importance in interpreting remote sensing images. UPSC 2018, 10 Marks

Geology 1e Write about different types of unconformities and their significance. UPSC 2018, 10 Marks

Geology 2a Describe a desert and discuss how a desert is classified. Discuss the morphology of a dune and conditions favouring formation of different dune types. UPSC 2018, 20 Marks

Geology 2b Describe the different satellite orbits and their relative advantages. UPSC 2018, 15 Marks

Geology 2c What are shear zones? Explain diagrammatically the transition from brittle fault to ductile shear at depth. UPSC 2018, 15 Marks

Geology 3a Describe different types of plate boundaries with suitable sketches. UPSC 2018, 20 Marks

Geology 3b Describe 'Spectral Signature' and add a note on the spectral reflectance pattern of rocks, vegetation and water bodies. UPSC 2018, 15 Marks

Geology 3c What are strain markers? Discuss their significance. UPSC 2018, 15 Marks

 
Geology 4a Discuss the mechanism of faulting. UPSC 2018, 20 Marks

Geology 4b Describe the defferent types of coastal landforms. UPSC 2018, 15 Marks

Geology 4c What are meteotites? Discuss different types of meteorites. UPSC 2018, 15 Marks

SECTION-B

5. Answer the following questions in about 150 words each:

Geology 5a Discuss the modes of fossilization of hard parts of an organism. UPSC 2018, 10 Marks

Geology 5b "Microfossils are superior to megafossils in correlation." Comment on the statement. UPSC 2018, 10 Marks

Geology 5c State the methods of groundwater exploration. UPSC 2018, 10 Marks

Geology 5d Explain the geological considerations for construction of roads in hilly terrain. UPSC 2018, 10 Marks

Geology 5e Discuss the Precambrian-Cambrian boundary problem in the Indian geological context. UPSC 2018, 10 Marks

Geology 6a Give an account of evolutionary trends in Proboscidea. UPSC 2018, 20 Marks

Geology 6b Write short notes on the following: UPSC 2018, 15 Marks

Geology 6b i Lower Gondwana Group

Geology 6b ii Karewa Group

Geology 6b iii Krol Group

Geology 6c Give a succinct account of life during Vindhyan times. UPSC 2018, 15 Marks

Geology 7a What are the different types of landslides? Discuss their controlling measures. UPSC 2018, 20 Marks

Geology 7b Give a brief account of the stratigraphy of Mesozoic rocks of Kachchh. UPSC 2018, 15 Marks

Geology 7c Discuss the significance of fossils in paleoclimatic studies. UPSC 2018, 15 Marks

Geology 8a Discuss the geological considerations for selection of sites for bridges. UPSC 2018, 20 Marks

Geology 8b What do you understand by spring sanctuaries? Describe the various types of springs. UPSC 2018, 15 Marks

Geology 8c Discuss the stratigraphy of the Siwalik supergroup and comment on its vertebrate fossils. UPSC 2018, 15 Marks