This download link is referred from the post: SGBAU BSc Last 10 Years 2010-2020 Question Papers || Sant Gadge Baba Amravati university
B.Sc. (Part-II) Semester-III Examination
3S : GEOLOGY (Old)
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Time : Three Hours] [Maximum Marks : 80
Note : (1) All questions are compulsory.
(2) Draw well labelled diagrams wherever necessary.
- (A) Fill in the blanks :-- 2
- Mineral bodies of elongated or tubular shape deposited in pre-existing fissures are known as __________
- The Trilobites are divided into __________
- Worthless material associated with an ore mineral is __________
- The constant proportion in which the two constituents simultaneously crystallise is called __________
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- (B) Choose the correct alternatives :— 2
- Number of segments in Thorax : (a) 2-4 (b) 3-6 (c) 3 (d) None of the above
- The outer wall of corallite is known as : (a) Theca (b) Epitheca (c) Septa (d) Mesenteries
- Primary Deposits of ore mineral are also known as : (a) Supergene (b) Typogene (c) Tenor (d) None of the above
- The region in which the rate of crystallization is slow is called as : (a) Metastable (b) Labile (c) Solidous (d) None of these
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- (C) Answer the following in ONE sentence :— 4
- What is stock works ?
- What are epigenetic deposits ?
- What is triple point ?
- What is Septa ?
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2. Explain the following :— 12
- Tenor of ore
- Metallogenic epoch and provinces
- Ore forming mineral.
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OR
- Hydrothermal deposits
- Early Magmatic Deposits
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3. Describe the oxidation and supergene enrichment deposits. 12
OR
Describe various types of mechanical concentration deposits.
4. Explain the following : 12
- Three component system
- Eutectic
- Concept of phase, component and system.
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OR
- Mixed crystal
- One component system
- Phase rule
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5. Explain the following : — 12
- Lamprophyre and their equivalents
- Gabbro-Anarthosite-Peridotite
- Distribution of igneous rock in space and time.
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OR
- Variation Diagram
- Consanguinity
- Kindreds of Igneous rock.
6. Describe morphology, classification and geological distribution of class foraminifera. 12
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OR
Describe morphology, classification and geological distribution of class Echinodermata.
7. Explain the following : 12
- Thorax
- Morphology of Anthozoa
- Application of paleontologic data.
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OR
- Apical disc
- Classification of Anthozoa
- Facial suture in trilobita.
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This download link is referred from the post: SGBAU BSc Last 10 Years 2010-2020 Question Papers || Sant Gadge Baba Amravati university
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