Solapur University Question Paper,2014 Question Paper,M.Sc. – I (Semester – II),APPLIED GEOLOGY Paper –VIII : Geochemistry

Solapur University Question Paper
M.Sc. – I (Semester – II) Examination, 2014
APPLIED GEOLOGY
Paper –VIII : Geochemistry
Day and Date : Tuesday, 29-4-2014 Max. Marks : 70
Time : 11.00 a.m. to 2.00 p.m..m. 1.00 p.m.
Instructions: 1) Answer any five question.
2) All questions carry equal marks.
3) Question no. 1 is compulsory.
4) Answer any two questions from each Section.
5) Draw neat and labelled diagrams wherever necessary.
I. Choose the correct answer : 10
1) The pH of the natural water lies between
a) 6-8.5 b) 7-8 c) 4-9 d) 1-7
2) The average salinity of the oceans is
a) 35% b) 15% c) 98% d) 10%
3) Find the odd one out
a) Ar b) Cw c) O d) H
4) The CO2 concentration in the atmosphere increase with increasing
consumption of
a) Tidal energy b) Solar energy c) Fossil fuel d) Nuclear energy
5) The Greek word chaleophile means love to
a) Sulphur b) Gases c) Iron d) All the above
6) Eh of an aqueous solution is a measure of its
a) Redox potential b) Alkalinity
c) Acidity d) None
Seat
No.
SLR-VE – 8 -2-
7) The sequence of concentration Co3 > So4 > Cl is noticed in
a) River water b) Sea water c) Glacial d) None
8) A rapid neutron capture or n- process produces elements havier than
a) Nickle b) Iron c) Bismuth d) Silicon
9) The geochemical character of an element is largely governed by
a) z/r b) z+r
c) Electronic configuration d) None
10) When lithophile form ions their outer most electron shell have
a) 8 electrons b) 18 electrons
c) incompletely filled d) 20 electrons
11) The radiometric dating of wood, charcoal, bone and shells are possible by
using
a) 236 U b) 232 Th c) 238 U d) 14C
12) The half life of 14C is
a) 5730 b) 5159 c) 5051 d) 1.31 × 109
13) The 5153 superior analysis were used in calculation of average composition
of
a) Igneous rocks b) Sedimentary rocks
c) Metamorphic rocks d) All the above
14) Deep lakes and marine environments are likely to undergo seasonal thermal
stratification into an underlying layer where temperature drops fast with depth
called as
a) Epilimnion b) Thermocline c) Hypolimnion d) Sediment
SECTION – A
Attempt any two questions from this Section.
II. Discuss different concepts in determination of the average composition of Igneous
rocks.
III. Describe the evolution of atmosphere highlighting the gains and losses during
geological time. Add a note on climate change.
IV. Discuss the physico-chemical factors of elements during sedimentation.
-3- SLR-VE – 8
SECTION – B
Attempt any two questions from this Section.
V. Write briefly on any two of the following :
a) Lithophiles
b) Cosmic abundance of elements.
c) Geological material for radio active dating.
VI. Write short notes on any two of the following :
a) difference between sea water and river water
b) primary differentiation of elements
c) Gibbs free energy.
VII. Bring out the salient aspects on the following :
a) Average composition of earth
b) Eh
 - pH diagrams.
c) Origin of elements.
__________________

Share This