BGYCT-137 · June 2023 · English
IGNOU BGYCT-137 June 2023 Previous Year Question Paper
STRATIGRAPHY AND PALAEONTOLOGY
Structured previous year question paper for BGYCT-137, June 2023 session.
Max marks: 50 · Questions: 4
Verified: 10 Aug 2026
BACHELOR OF SCIENCE (GENERAL)
(BSCG)
Term-End Examination
June, 2023
BGYCT-137 : STRATIGRAPHY AND
PALAEONTOLOGY
Time : 2 Hours Maximum Marks : 50
Note : All questions are compulsory. Marks allotted
for each question are indicated against it.
Draw well labelled diagrams, wherever
necessary.
Q1.Briefly answer any five of the following questions : 5×2=10
(a) List the main principles of stratigraphy.
(b) Define stratigraphic correlation.
(c) Name the five linear divisions of Himalaya.
(d) Write about the evidence of life reported in the Cuddapah supergroup.
(e) List the name s of formations of the Mesozoic succession of Rajasthan.
(f) List the main lit hology of the Gondwa na supergroup.
(g) In which rocks would you find fossils and why ?
(h) List the important groups of fossils belonging to organic-walled microfossils.
(i) What is the function of a lophophore in brachiopods ? (j) What are gastropods ?
Q2.Write short notes on any four of the following : 4×5=20
(a) What is the difference between an angular unconformity and disconformity ?
(b) What are the main methods of stratigraphic correlation ?
(c) What is the significance of Quartz -Pebble- Conglomerate (QPC) ?
(d) Describe the geographical distribution of the Deccan traps.
(e) Discuss Gondwana flora of India.
(f) What is the stratigraphic range of corals ?
(g) What are the characteristic sutures of ammonoids ?
(h) Define the terms : suture, body whor l, aperture and spire.
Q3.Answer any one of the following : 10
(a) Describe the lithostratigraphic classification
(b) Discuss in detail the importance of fossils in Geology. [ 4 ]
Q4.Answer any one of the following : 2×5=10
(a)
(i) Elaborate the four differences between Western Dharwar Craton and Eastern Dharwar Craton.
(ii) Give an account of the Palaeozoic stratigraphy of Kashmir.
(b)
(i) What are bivalves ? Discuss the morphology of a bivalve.
(ii) Describe with neat sketches the morphological features of a trilobite. 2023 -137 5×2=10 4×5=20 2×5=10
(ii)
(ii)