R

Ritika

Question Q.7GS1GS2

Discuss the processes involved in volcanism. Highlight the major volcanic regions in the world and their associated tectonic settings.

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Answer

Introduction

Volcanism refers to the combined process of eruptions and the associated extrusive and intrusive landforms.

15 words

Main Body

Processes of volcanism 1) Generation of internal heat that drives the hot plumes => radio activism. 2) Magmatic differentiation => separation of lighter and heavier elements. 3) Phreatic vapour formation => provides the thrust for eruption. 4) Lava Flow => lahars, mud flows etc. 5) Solidification and consolidation, either within the earth Plutonic or near the surface hypabyssal. Major volcanic regions & Tectonic settings

1Mid-Atlantic Ridge => divergent boundary that leads to basaltic fissure type eruption. 2) Circumpacific Ring of Fire => convergent plate boundary (O-C) => explosive, felsic, acidic lavas. 3) Mid-continental Belt => Alpines, Ural, Alpinines, Carpathains due to continent-continent convergence. 4) Intra-Plate volcanoes => due to thermal gradients.
112 words1 paragraphs

Conclusion

Therefore, volcanism is an important geological process having significant lithological, climatological & hydrological consequences.

14 words

Diagram

World map showing Mid-Atlantic Ridge, Mid-continental Belt, Pacific Ring of Fire, and Hotspots for volcano distribution.

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Page 16

Topper

Ritika

Subject & Paper

GS1GS2

Topic

Geomorphology

Volcanism

Processes of Volcanism

Writing Stats

141

Total words

1

Paragraphs

structured, point-wise with diagram

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