Aligarh Muslim University (AMU) 2011 B.Sc Geology Sedimentary and metamorphic petrology - Question Paper
B.Sc. (HONS.)
44242010-2011
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B.Sc. (HONS.) (PART-III) EXAMINATION \
(GEOLOGY)
SEDIMENTARY & METAMORPHIC PETROLOGY V
(GL-317)
Maximum Marks: 40 Duration: Three Hours
Answer all questions.
1. Describe the basic principles of paleo-environments and pateoclimatic analysis. 07
OR
1 Write notes on the following:
(a) Significance of grain size distribution in relation to depositional environments
(b) Idealized sequence of sedimentary structures in lower and upper flow regimes.
2. Describe the primary sedimentary structures commonly associated with shallow
water deposits. 07
vz'3'T Discuss the concept of maturity of sediments. Which mineralogical and textural
attributes are indicative of maturity of sands? 06
OR
3 . Write detailed notes on:
(a) Petrography and geological significance of quartz arenite.
(b) Geosynclinal facies.
Describe the various types of textures and structures of metamorphic rocks. 06
5. Explain the essential characteristics of paired metamorphic belts with suitable schematic cross- sections. 07
OR
5'. Write detailed notes on the following:
(a) Barrovian zones of regional metamorphism
(b) Concept of metamorphic facies.
6. What do you understand by cataclastic metamorphism? Describe the important products formed due to cataclastic metamorphism. 07
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