M.Sc. (Applied Geology) (Semester II)
(CBCS) Examination, 2017
IGNEOUS AND METAMORPHIC PETROLOGY
Day Date: Wednesday, 19-04-2017 Max. Marks: 70
Time: 10.30 AM to 01.00 PM
N.B. Attempt any five question.
Question No. I is compulsory.
Answer two questions from Q. No. 3 and 4 and
two question from Q.No.5, 6 and 7.
Draw neat and labeled diagrams wherever
Necessary.
All question carry equal marks.
Q.1 Tick mark the correct answers: 14
With increasing grade of metamorphism, kyanite develop.
After staurolite and before sillimanite
Before staurolite and after sillimanite
Before chlorite and biotite
After staurolite and sillimanite
Sillimanite usually occurs in
Thermally metamorphosed calcareous rocks
Thermally metamorphosed argillaceous rocks
Pegmatite
Serpentine
Alkaline rocks are most abundant in
Continental rift zone Mid oceanic ridge
Island arc None
Liquid immiscibility is explained as the process of formation of

Carbonatite Lamprophyre
Phonolite Kimberlite
The process of production of different magma and from a single
parent magma.
Partial melting Magma variation
Magma differentiation Magma mixing
The mineral assemblage of Khondalite is
Plagioclase- garnet-hypersthene-quartz schist
Plagioclase-hypersthene- diopside-garnet schist
Quartz- perthite- hypersthenes- garnet schist
Garnet-sillimanite- graphite schist
Page 1 of 2
SLR-RB 47
Which of the following lists is arranged in order from lowest to
highest grade of metamorphic rock?
Gneiss, slate, schist, phyllite
Slate, gneiss, phyllite, schist
Gneiss, schist, phyllite, slate
Slate, phyllite, schist, geniss
Ophitic texture is commonly exhibited
Andesite Trachyte Dolerite lamprophyre
What type of metamorphism is responsible for the formation of
hornfelsic rock?
Regional Contact Burial Cataclastic
10) Greenschist are metamorphic rock of igneous composition.
Mafic Acidic Calcareous intermediate
11) Find the odd man out.
Sandstone Quartzite
Basalt Amphibolite
Granite garnet-gneiss
Peridotite Sillmanite schist
12) Miyashiro recognized sub-parallel belts of high P-T adjacent to
low P-T metamorphic rocks parallel to the trench as.
Paired metamorphic belts Contact metamorphic
Regional metamorphic None of the above
13) The plagioclase feldspar that is characteristic of anorthosite is

Albite Oligoclase Labradorite Bytownite
14) Syenite in which plagioclase becomes approximately equal in
amount to the alkali feldspar are
Monzonite Shoshonite Diorite All of the above
Q.2 Explain in brief Eskola's classification of metamorphic facies.
IIIustrate a diagram showing P&T condition of metamorphic facies.
14
Q.3 Explain in detail the petrogenesis, chemistry and distribution of
Kimberlites in India.
14
Q.4 Discuss in detail with ACK diagram the granulite facies. Add a note
on mineralogical assemblage of charnockite and khondalites of South
India.
14
Q.5 Explain in short: 14
Paired metamorphism belts
Diopside- Anorthite system
Q.6 Discuss in brief: 14
Calc- alkaline rocks
Fractional crystallization of magma
Q.7 Describe the following: 14
Incongruent melting phase system
Grades of metamorphism.