IFS - 2007
GEOLOGY
   
PAPER - I
SECTION - A
GEOLOGY
PAPER - I
SECTION - A
- Write critical notes, within 150 words each, on any four of the following :      
- Solar System. (10)
 - Landforms. (10)
 - Aerial photographs and their interpretation. (10)
 - Unconformities. (10)
 - Weathering and Mass-Wasting. (10)
 
 - What are volcanoes? Discuss volcanic eruptions with special reference to India. (40)
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- Discuss in detail the basic concepts in geomorphology. Illustrate your answer with suitable Indian examples. (20)
 - Geographical Information System and its applications. (20)
 
 - Discuss in detail the principles of geologic mapping and map reading. (40)
SECTION - B
 - Write critical notes, within 150 words each, on any four of the following :      
- Microfossils. (10)
 - Evolution of the Himalaya. (10)
 - Lithostratigraphic classification of strata. (10)
 - Rainwater harvesting. (10)
 - Rocks as construction material. (10)
 
 - Discuss in detail the evolutionary trends of Trilobita. Illustrate your answer with neat sketches. (40)
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- Discuss the stratigraphic distribution and lithology of the Siwalik Group. (20)
 - Discuss in brief igneous activity in India during the geologic past. (20)
 
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- Discuss the various water-bearing characteristics of rocks. Give suitable examples. (20)
 - Discuss the various geological investigations you shall undertake before and during construction of a bridge. (20)
 
PAPER - II
SECTION - A
- In about 150 words each, write on any four of the following : (l0 × 4 = 40)        
- Use of projection diagrams to represent crystal symmetry.
 - Twinning in minerals.
 - Magmatic differentiation.
 - Heavy minerals and their significance.
 - ACF and AKF diagrams.
 
 - Define Inosilicates. Giving their general characters, describe the minerals of pyroxene group. (40)
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- Describe the crystallization of two- component system of Anorthite-Albite with solid solutions. (20)
 - What is understood by metamorphism in geology ? List different types of metamorphism. Discuss any one type with suitable examples. (20)
 
 - Enumerate and explain the formation of different types of sedimentary structures. Write an account on their significance. (40)
SECTION - B
 - Attempt any four answering in about 150 words each : (l0 × 4 = 40)        
- Pneumatolysis in ore geology.
 - Environmental impact of use of fertilizers.
 - Environmental impact assessment (EIA) in mining.
 - Graphical methods of estimation of ore reserves.
 - Thermodynamic principles.
 
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- Give an account of the nature and occurrence of Pb-Zn deposits of either of the following in Rajasthan : (20)          
- Zavar mines
 - Rampura-Agucha.
 
 - Explain secondary (supergene) enrichment. Describe the physical and chemical factors that control above process. (20)
 
 - Give an account of the nature and occurrence of Pb-Zn deposits of either of the following in Rajasthan : (20)          
 - Enlist various methods of prospecting of ore. Discuss in detail the sub-surface methods of exploration for copper and groundwater bodies. (40)
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- What are Meteorites? Give their classification. Explain in detail their characters. (20)
 - Describe the environmental impact due to an open-cast mine in the coalfields of India. What remedial measures are being adopted there? (20)
 
 
 
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