GEOL/VI/09 Student's Copy
2 0 1 8
6th Semester
GEOLOGY
NINTH PAPER
Paleontology and Stratigraphy—II
Full Marks 55
Time 2½ hours
PART A—OBJECTIVE
Marks 20
The figures in the margin indicate full marks for the questions
SECTION—A
Marks 5
Tick the correct answer in the brackets provided 1×5=5
1. Which of the following microfossils dominates carbonate compensation
depth
Organic microfossil
Calcareous microfossil
Siliceous microfossil
Phosphatic microfossil
/520 1 Contd.
2. According to the concept of Lamarckism
the function creates the organ
present is the key to the past
natural selection follows the struggle for existence
ontogeny recapitulates phylogeny
3. Vertebraria indica is
a plant fossil belonging to conifers
a plant fossil belonging to cycads
the stem of Glossopteris
the stem of Gangamopteris
4. Presence of coquina limestone of Tiruchchirappalli formation indicates an
environment of deposition of
shallow marine
fluvial
delta
mudflat bottoms
5. In Upper Assam, which of the following geologic horizons is considered to
be the source rocks of petroleum?
Barail Group
Surma Group
Dupitila Group
Dihing Group
GEOL/VI/09/520 2 Contd.
SECTION—B
Marks 15
Write notes on the following 3×5=15
1. Mould and cast
2. Classification of major plant group
3. Coccolith
4. Syringothyris limestone
5. Karewas of Kashmir
PART B—DESCRIPTIVE
Marks 35
The figures in the margin indicate full marks for the question
Answer five questions, taking one from each Unit
UNIT—I
1. Write a note on the application of paleontology with special reference to
paleobiogeographic reconstructions. 4
Write a note on the methods of describing a fossil specimen. 3
2. Write a note on the evidence of organic evolution. 4
Write a note on the method of preparation of microfossils. 3
GEOL/VI/09/520 3 Contd.
UNIT—II
3. Write short notes on the following 3½+3½=7
Gondwana flora
Mode of preservation of plant fossils
4. Write short notes on the following 3½+3½=7
Siwalik vertebrate fauna
Origin of vertebrates
UNIT—III
5. Write a note on the application of microfossil in hydrocarbon exploration. 7
6. Give a brief idea of different microfossil groups. Add a note on the
geological significance of Foraminifera.
UNIT—IV
7. Give a classification of Gondwana supergroup. Also write the detailed
account of Upper Gondwana sequence.
8. Describe the stratigraphic succession of the following 3½+3½=7
Palaeozoic of Kashmir
Triassic of Spiti
UNIT—V
9. Describe the lithostratigraphic succession, age, fossil content and
economic deposits of deccan trap. 7
10. Describe in detail the geological succession of palaeogene of Assam. 7