1
10 Marksmedium
How do you measure refractive index of minerals and distinguish high and low relief minerals under microscope?
2
10 Marksmedium
Write about the symmetry elements of a crystal.
3
10 Marksmedium
Explain the salient features exhibited by rocks due to thermal metamorphism.
4
10 Marksmedium
Explain with suitable examples the implications of albite-anorthite solid solutions in the understanding of crystallisation of magma.
5
10 Marksmedium
How are sedimentary rocks classified in general based on their process of formation?
6
20 Marksmedium
Write about the crystal structure of monoclinic amphiboles and cite mineral examples along with their formula. Add a note on their paragenesis.
7
20 Marksmedium
Briefly write about the crystal forms of hexagonal system using projection diagrams.
8
10 Marksmedium
Define pleochroism of minerals and write about the utility of pleochroism to distinguish minerals and provide examples.
9
20 Marksmedium
What do you understand by the term texture of a rock? How do you relate the textures of igneous rocks with the process of magmatic crystallisation?
10
20 Marksmedium
Critically discuss the petrogenesis of anorthosites. Comment on the tectonic significance on the distribution of anorthosites.
11
10 Marksmedium
Explain the effects of prograde metamorphism on impure carbonate rocks.
12
20 Marksmedium
Illustrate with neat sketches the sedimentary facies and facies associations that are likely to develop in a progradational deltaic environment.
13
20 Marksmedium
Classification of carbonate rocks based on textural components may be useful for interpretation of depositional environment'. Justify the statement with reasons.
14
10 Marksmedium
How would you distinguish burial diagenetic cements in carbonate rocks from petrographic studies? Draw neat sketches in support of your answer.
15
10 Marksmedium
Explain the processes of formation of syngenetic and epigenetic ore deposits with suitable examples.
16
10 Marksmedium
Describe the geology of the East Coast Bauxite deposits of India.
17
10 Marksmedium
Discuss various methods of conservation of mineral resources for achieving sustainable mineral development.
18
10 Marksmedium
Illustrate with examples the role of chemical bonding in minerals in determining certain properties.
19
10 Marksmedium
Write about the causes of Sea level changes.
20
20 Marksmedium
Discuss the salient features of various types of lead-zinc ore deposits. Illustrate your answer with schematic diagrams to explain the process of ore formation.
21
20 Marksmedium
Describe the geological characteristics of important chromite deposits from different parts of the Indian shield.
22
10 Marksmedium
What is coal bed methane? How is it exploited?
23
20 Marksmedium
What are the factors which influence the mobility of elements in near-surface environment? How does understanding the mobility of elements help in choosing indicator elements for a geochemical exploration programme?
24
20 Marksmedium
A vein-type copper ore body trending E-W with 90° dip and having strike length of 150 m is exposed on the surface. Four trenches are made across the ore body at constant interval, including one trench each at E and W end of the ore body. Thickness of the ore body and assay value measured from the trenches are given in the table.
Assuming that the ore body extends up to a depth of 50 m, and the specific gravity of the ore is 2.8, calculate the tonnage, grade and total copper content of the ore body.
25
10 Marksmedium
Explain the seismic methods of mineral prospecting.
26
20 Marksmedium
What do you mean by 'primitive mantle'? Illustrate the cosmochemical and observational constraints on mantle composition.
27
20 Marksmedium
Explain about the impact of volcanic eruptions on the environment.
28
10 Marksmedium
Briefly mention measures to mitigate landslides.