BGYET-141 · June 2023 · English
IGNOU BGYET-141 June 2023 Previous Year Question Paper
ORE GEOLOGY AND INDUSTRIAL MINERALS
Structured previous year question paper for BGYET-141, June 2023 session.
Max marks: 50 · Questions: 4
Verified: 10 Aug 2026
BACHELOR OF SCIENEC (GENERAL)
(BSCG)
Term-End Examination
June, 2023
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 of the following : 5×2=10
(a) Differentiate between proved and probable ore reserves.
(b) List any four ores of iron.
(c) Define autochthonous deposit.
(d) What are Chimney Manto type Volcanogenic Massive Sulphide (VMS) polymetallic deposits ?
(e) Define mesothermal ore deposits.
(f) Define Exclusive Economic Zone (EEZ).
(g) What are stockworks type deposits ?
(h) Write any two mineral deposits associated with mantle plume activities.
(i) Who is regarded as the founder of modern economic geology ? Name the book he wrote in 1911. (j) List any four minerals used in refractory industry.
Q2.Write short notes on any four of the following : 4×5=20
(a) Macroscopic unit of coal
(b) Metallogenic Provinces of India
(c) Factors controlling wall rock alteration
(d) White smokers
(e) Supergene enrichment
(f) Physical properties of chromite
(g) Distribution of lead and zinc deposit s in India
(h) Mode of occurrence and uses of gypsum
Q3.Answer any one of the following : 1×10=10
(a) How are late magmatic deposits formed ? What are the deposits associated with late magmatic deposits ?
(b) What do you understand by geological exploration ? Discuss the ac tivities involved in geological exploration.
Q4.Answer any one of the following :
(a)
(i) List the physical and opti cal properties of hematite. 5
(ii) What are the differences between syngenetic and epigenetic ore deposits ? 5
(b)
(i) Discuss the subsurface exploration methods. 5
(ii) Discuss the salient features of National Mineral Policy, 2019 5 2023 -141
(iii) (VMS) [ 6 ]