Indian ForestSeNice Examination-2012

GEOLOGY
Paper I
Time, Allowed Three Hours MaXimum Marks 200
INSTRUCTIONS
Candidates should attempt Question Nos. 1 and 5 which are compulsory, and any THREE of the remaining questions, selecting at least ONE question from each Section. All questions carry equal marks. Marks allotted to part& of a question are Indicated against each. Answers must be written In ENGLISH only; Suitable sketches may tie drawn, wherever required. Important Note All parts/sub-parts of a question being attempted are to be answered contiguously on the answer-book. That Is, where a question Is being attempted, ail its ·constituent parts/sub-parts must be answered before moving on to the next question. Pages left blank, If any, In the answer-book(s) must be clearly struck out. Answers that follow pages left blank may not be given credit.

Section-A
1. Write critical notes, within 150 words each,on the following10X4=40
Biotic weathering
Atmospheric windows
Intensity and magnitude of seismicity in India
Angular unconformities

2. Describe the methods used for determining the age of the earth. 20
(b)Describe the causes of earthquakes.10
(c)Explain trellis and dendritic types of drainage patterns.10

3. Give an account of the application of remote sensing in geology. 20
Describe the data products of Indian remote sensing satellites. 10
Explain the application of Geographic Information System to geological studies. 10

4. How does the plate tectonics theory support the continental drift theory? 10
Describe different types of plate margins12
(c)Give an account of the classification of folds. 18

Section-B

5. Write notes, within 150 words each, on the following 10x4=40
Unconfined aquifer
Alkali-aggregate reaction
Age of the Deccan Traps
Kinds of microfossils

6. Briefly discuss the main elements of Siwalik vertebrate fauna and give their stratigraphic distribution. 10
Discuss the climatic change-record during Pleistocene from Indian geologic formations. 10
Highlight the salient features of the evolutionary trends in Trilobites. 20

7. Describe the following (in about 150 words each) 40
Muth Quartzites
Lameta Beds
Bundelkhand Gneissic Complex
Niniyur Formation

8. Discuss the sliding and groundwater problems in dams. 20
Give an account of the engineering properties of rocks. 20