IGNOU BGYCT-137 December 2023 Previous Year Question Paper

Q1.Briefly answer any five of the following :5×2=10

(i) What is the difference between a sill and a dyke ?

(ii) What is stratigraphic correlation ?

(iii) Name any four cratons of the Indian peninsula. [ 2 ] BGYCT–137

(iv) List two greenstone belts of WDC and EDC.

(v) Name the Palaeozoic succession of north - west Himalaya.

(vi) List the key morphological features of radiolarians.

(vii) What is Equus ?

(viii)What is the geological range of brachiopods ? (ix) What are gastropods ?

Q2.Write short notes on any four of the following :

(i) What is the difference between uniformitarianism and catastrophism ?

(ii) What are the methods of stratigraphic correlation ?

(iii) Write a brief note on the Mesozoic stratigraphy of Kachchh.

(iv) What are intertrappean and infratrappean beds ?

(v) What is palaeontology ? Discuss various branches of palaeontology.

(vi) Discuss the importance of microfossils.

(vii) Write a short note on cephalopod molluscs. [ 3 ]

Q3.Answer any one of the following : 1×10=10

(i) Discuss in detail the stratigraphy of Vindhyan Supergroup.

(ii) Discuss in detail morphology and geological history of corals.

Q4.Answer any one of the following : 2×5=10

(a)

(i) What are the types of stratigraphic classification ?

(ii) Explain the Triassic Succession of Spiti.

(b)

(i) What are microfossils ? Disc uss various types of microfossils.

(ii) Describe the geological history of bivalves and gastropods. [ 4 ] BGYCT–137 2023 -137

(iii) 5×2=10 [ 5 ] BGYCT–137 [ 6 ] BGYCT–137 1×10=10 2×5=10