B.Sc. DEGREE EXAMINATION, NOVEMBER 2017
Fifth Semester
Geology
SEDIMENTARY AND METAMORPHIC PETROLOGY
(CBCS 2014 onwards)
Time 3 Hours Maximum 75 Marks
Part A (10 x 2 20)
Answer all questions.
1. Define cross-bedding with neat sketch.
2. Define clastic texture.
3. Define terrarosa.
4. What is clay?
5. Define siderite.
6. What is caliche?
7. What is metamorphism?
8. Define palingenesis.
9. Define metasomatic process.
10. What is pneumatolyitc metamorphism?
Sub. Code
4BGE5C2
AFF-4482
2
WS3
Part B x 5 25)
Answer all questions, choosing either or
11. Write a short note on diagenesis.
Or
Give an account on the classification of sedimentary
rocks.
12. Describe soil and its formation with neat sketch.
Or
Write short note on mineral composition and
texture of non-clastic deposit
13. Write in brief about organic deposits of siliceous
origin.
Or
Write short note on gypsum.
14. Write in brief about cataclastic metamorphism and
its products.
Or
Give a short account on anatexis.
15. What is dynamothermal metamorphism and
describe its products?
Or
Describe metasomatism and its process.
AFF-4482
3
WS3
Part C x 10 30)
Answer any three questions.
16. Give detailed account on classification of sedimentary
rocks into residual, chemical and organic groups.
17. Give brief accounts on the following.
Breccia
Shale.
18. Give a detail understanding on chemical deposits of
calcareous and siliceous origin.
19. Discuss agents and kinds of metamorphism.
20. Explain petrographic description of the following:
Migmatites
Charnockites.
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