MS – 318

*PD154*

II Semester B.Sc. Examination, May/June 2013 (Semester Scheme) (NS -70 – 2011-12, & Onwards/NS-60 – 2009-10 & Onwards) GEOLOGY – II Geodynamics and Mineralogy Time : 3 Hours

Max. Marks : 70/60

Instructions : i) Answer all questions. ii) Draw neat diagrams wherever necessary. iii) Students of 2011-12 answer all Sections (70 marks). iv) Students of 2010-11 answer ABCD Sections only (60 marks). SECTION – A Answer all questions. All questions carry equal marks.

(5×2=10)

Define the following : 1. Interference colours 2. Hot spot 3. Amorphous minerals 4. Total reflection 5. Diamagnetism. SECTION – B Answer any five questions. All questions carry equal marks.

(5×3=15)

Explain the following : 6. Twinning 7. Extinction angle 8. Diaphenity 9. Orogeny 10. Pseudo morphism P.T.O.

MS – 318

-2-

*MS318*

11. Fracture in minerals 12. Oceanic Trenches SECTION – C Answer any three questions. All questions carry equal marks.

(3×5=15)

Describe the following : 13. Optical classification of minerals 14. Cyclosilicates 15. Hardness in minerals 16. Mid-oceanic ridge 17. Michael Levy’s chart. SECTION – D Answer all questions. All questions carry equal marks.

(2×10=20)

18. Explain different types of plate boundaries and associated land forms. OR Describe pyroxene group of minerals. 19. What are the principle evidences in favour of continental drift theory and analyse the causes of movement of plates ? OR Explain olivine group of minerals. SECTION – E Answer the following questions :

(1×10=10)

20. Write an essay on optical accessories. OR Describe the habits in minerals. ———————

*PD154*

MS – 318

-3-

II Semester B.Sc. Examination, May/June 2013 (Semester Scheme) (OS) (Prior to 2009 – 10) GEOLOGY – II Introduction to Geology Time : 3 Hours

Max. Marks : 60

Instructions : 1) Answer all Sections. 2) Draw neat diagrams wherever necessary. SECTION – A I. Answer all questions. All questions carry equal marks.

(5×2=10)

Define the following : 1) Umbo 2) Diagenesis 3) Graded bedding 4) Ore mineral 5) Mummyfication. SECTION – B II. Answer any five questions. All questions carry equal marks. Explain the following : 6) Spire in molluses 7) Lignite 8) Oolitic structure 9) Order of super position

(5×3=15)

MS – 318

-4-

*MS318*

10) Eparchean unconformity 11) Champian Gneisses 12) Ophitic texture SECTION – C III. Answer any three questions. All questions carry equal marks.

(3×5=15)

Describe the following : 13) Bowen’s reaction principle 14) Rudaceous rocks 15) Geological time scale 16) The morphological characters of Brachiopod shell 17) The physiographic divisions of India. SECTION – D IV. Answer all questions. All questions carry equal marks.

(2×10=20)

18) Give an account of the Cuddapah system in the type area. OR What is Metamorphis ? Give an account of the agents of metamorphism. 19) Describe the standard geological time scale. OR Describe the typical shell of a gastropod and give its range in time.

————————