Aligarh Muslim University (AMU) 2008 B.Sc Geology Sedimentary and Metamorphic Petrology - Question Paper

4234

2008-2009

B.Sc.(HONS.) (PART-III) EXAMINATION (GEOLOGY)

SEDIMENTARY & METAMORPHIC PETROLOGY

(GL-317)

Maximum Marks: 40    Duration : Three Hours.

Answer all questions.

1 What is palaeocurrent? Discuss in brief the various methods of palaeocurrent

analysis.    07

OR

_t *

1 Write notes on the following:

(a)    Concept of sedimentary facies.

(b)    Significance of detrital grain-size distribution in environmental analysis.

one

2. What are bases for the classification of sandstones? Discuss anyscheme for

the classification of sandstone.    07

OR

2. Write detailed notes on the following:

(a)    Concept of mineralogical and textural maturity of sand.

(b)    Relationship between tectonics and sedimentation.

3. Briefly describe the different types of internal structures of sediment.    06

OR

3. Write notes on the following:

(a)    Significance of ichno-fossils.

(b)    Turbidite sequences.

4. Discuss the role of various agents during metamorphism of rocks.    07

OR

4. Write notes on the following:

(a)    Chemical equilibrium in metamorphic rocks

(b)    Metamorphic texture and their significance.

Discuss in brief the metamorphic facies concepts and grades of metamorphism. 07

OR

Write notes on the following:

(a)    Barrovian zones of regional metamorphism.

(b)    Paired metamorphic belts.

What is metasomatism? Classify the mctasomatic processes according to the kinds of rock they affect.

OR

Write notes on the following:    ' *

(a)    P-T diagram

(b)    Origin of chamokites.

Attachment: aligarh-muslim-university--amu--2008-b-sc-geology-307-1.pdf

Earning:   Approval pending.