BGYET-141 · December 2024 · English
IGNOU BGYET-141 December 2024 Previous Year Question Paper
ORE GEOLOGY AND INDUSTRIAL MINERALS
Structured previous year question paper for BGYET-141, December 2024 session.
Max marks: 50 · Questions: 4
Verified: 10 Aug 2026
BACHELOR OF SCIENCE
(GENERAL) (BSCG)
Term-End Examination
December, 2024
BGYET-141 : ORE GEOLOGY AND
INDUSTRIAL MINERALS
Time : 2 Hours Maximum Marks : 50
Note :
(i) All questions are compulsory.
(ii) Marks allotted for each question are
indicated against it.
(iii) Draw well-labelled diagrams, wherever
necessary.
Q1.Briefly answer any five questions from the following : 5x2=10
(a) Define concentration factor.
(b) Distribution of iron-ore deposits in India.
(c) Deposits associated with late magmatic processes.
(d) Baryte deposits in India.
(e) Distribution of chromite deposits in India.
(f) Common varieties of limestone.
(g) Gossan
(h) Write any two peculiarities associated with mineral resources.
Q2.Write short notes on any four of the following : 4x5=20
(a) Factors influencing reserve estimation
(b) Precambrian metallogenic epoch
(c) Contact metasomatism
(d) Criteria for establishing hydrothermal replacement deposits
(e) Black smokers
(f) Banded iron-ore formation
(g) Mode of occurrence of graphite and its uses
Q3.Answer any one of the following : 1x10=10
(a) Discuss the methods of reserve estimation. Use diagrams to explain the methods.
(b) Discuss the ore deposition at constructive plate boundaries with the help of neat diagrams.
Q4.Answer any one of the following :
(a)
(i) Discuss early magmatic deposits with the help of diagrams and examples. 5 Gi) Discuss the mode of occurrence, distribution and uses of phosphates. 5
(b)
(i) What are the different stages of mineral exploration ? 5
(1) Discuss the salient features of the National Mineral Policy, 2019. 5 1x10=10