Master of Science II (Applied Geology) Examination:
Oct Nov 2016 Semester III (New CBCS)
SLR No. Day
Date Time Subject Name Paper
No. Seat No.
SLR SE
48
Wednesday
16/11/2016
2:30 P.M
to
5:00 P.M
Geotectonics and
Physical Oceanography
C
IX
Instructions: Answer any five questions.
All questions carry equal marks.
Q.1 is compulsory.
Attempt any two essay questions from Q.2, 3 4
Attempt any two short note question from Q.5, 6 7
Draw neat and labeled diagrams wherever necessary.
Total Marks:70
Q.1 Fill in the blanks: 14
The Ninety east ridge located in
Arabian sea Off coast of Pakistan
Persian gulf Bay of Bengal
Compressive stresses, granitic magmas and intermediate depth earthquakes
are associated with
Sub duction zones Continent- continent convergence
Spreading centers Transform boundaries
Melange deposits are associated with
Divergent boundaries Sub duction margins
Transform boundaries All of these
The effect of the earth's rotation is to deflect moving objects to the right in
the northern hemisphere and to the left in the southern hemisphere is referred
as
Coriolis effect Geostropic current
Ekman transport None of the above
Which plate is being subducted beneath western south America?
The pacific plate The South American plate
The Narca plate The South Atlantic plate
The carbonate compensation depth in ocean is at depth of
2500 m 4500 m
1200m 100m
Which of the following increase with distance from a mid-ocean ridge?
The age of Oceanic lithosphere The depth to the seafloor
The thickness of the
lithosphere
All of the above
What are ophiolite suites?
Fragments of ocean lithosphere emplaced on a continent
Groups of sea floor magnetic anomalies
Wedge shaped packages of rediments that form at passive margins
Micro continents that have provided a long distance
When the estuary in essentially tiddess and the floor of the estuary slopes
down towards the sea.
Partially mixed estuary Salt wedge estuary
Stratified estuary None of the above
10) At the convergent plate boundary the most common geologic features formed
on the continental lithosphere are
Island are Pull apart basin
Volcanic are Rift valleys
11) Lesser Himalaya domain in Himalaya is separated from great Himalaya by

Main central thrust Main Boundary thrust
Himalayan frontal fault Indus suture zone
12) The margin associated with a trench, volcanism, active mountains and earth
quakes.
Pacific type Atlantic type
Transform type None
13) Earth loses heat by
Conduction Convection
Radiation All of the above
14) Which type of magma is generated at mid oceanic ridge.
Andesitic magma Calc-alkaline magma
Tholeiitic magma Acidic magma
Q.2 Describe in brief the volcanism and seismicity related to plate boundaries.
Q.3 Explain in detail the surface and deep circulation pattern of oceanic water.
Q.4 Write note on topographic features of ocean basin.
Q.5 Write short notes on the following
Sea floor spreading
Earth interior and its composition
Q.6 Explain the following
Petrology of ocean crust
Oceanic sediments
Q.7 Discuss the following
Hydrothermal vents and its significance
Sea level changes