M.Sc. (Semester (CBCS) Examination Mar/Apr-2018
Geoinformatics
INTRODUCTION TO GEOLOGY
Time: 2½ Hours
Max. Marks: 70
Instructions: Attempt any five questions. All Questions carry equal marks. Question no.1 is compulsory. Attempt any two essay questions from Q.No.2, 3 and 4. Attempt any two short note questions from Q.No.5, 6 and 7. Draw neat sketches wherever necessary.
Q.1
Choose the alternatives given below.
14
Specific gravity for most of the building stones lies between:
1.5-2.0
2.0-2.5
2.5-3.0
3.0-3.5
The selection of a dam site is made mainly based on:
The geology of the site
Cost of the dam
Environmental study
Dam type
A discordant type of igneous intrusion is:
Bed
Sill
Lava
Dyke
In thermal metamorphism is an active factor.
Temperature
Pressure
Chemical fluids
Stress
The metal content of an ore is called
Gangue
Tenor
Grade
Mineral
Minerals in an ore deposit having no economic value are known as
Ore
Gossan
Gangue
Tenor
If the hanging wall moves up relative to the footwall, the fault is called fault.
Normal
Thrust
Gravity
Peripheral
Shale is type of sedimentary deposit.
Rudaceous
Aranaceous
Argillaceous
Chemical
Thermal metamorphism of limestone gives rise to
Hornfels
Quartzite
Hornblende gneiss
Marble
10) All minerals are of equal size in texture.
Poikilitic
Ophitic
Granitic
Porphyritic
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SLR-UM-444
11) Hill shows contour value at the centre.
Highest
Lowest
Moderate
Mean
12) Dip and strike are to each other.
Parallel
Same
Perpendicular
Lower
13) Pyrite is an ore of
Copper
Lead
Zinc
Iron
14) mineral shows one set of cleavage.
Muscovite
Orthoclase
Quartz
Augite
Q.2
What is unconformity? Explain various types of unconformity.
14
Q.3
Explain role of engineering geology in mining industry.
14
Q.4
Explain classification of igneous rocks.
14
Q.5
Explain the following:-
14
Pyroxene group
Feldspar group
Q.6
Write note
14
Zinc deposits
Processes for formation of gold deposits
Q.7
Write a brief note
14
Types of tunnels
Metamorphic zones