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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