Examine how volcanic eruptions affect the local communities’ socioeconomic conditions.
Model Answer Volcanic Landforms Volcanic landforms are geographical features created by volcanic activity, classified into extrusive and intrusive types based on whether magma cools inside or outside the Earth's crust. Intrusive Volcanic Landforms Intrusive landforms are formed when magma cools andRead more
Model Answer
Volcanic Landforms
Volcanic landforms are geographical features created by volcanic activity, classified into extrusive and intrusive types based on whether magma cools inside or outside the Earth’s crust.
Intrusive Volcanic Landforms
Intrusive landforms are formed when magma cools and solidifies beneath the Earth’s surface. These include various features:
- Batholiths: Large magmatic bodies that cool deep within the crust, often forming large domes. They appear on the surface after denudation. An example is the granitic batholiths found in the Sierra Nevada.
- Laccoliths: Dome-shaped bodies formed at deeper levels, resembling volcanic domes. These can be seen in the Karnataka Plateau.
- Lopoliths: Saucer-shaped intrusions formed when lava moves horizontally along weak planes. They are concave upward.
- Phacoliths: Wavy, intrusive rock masses found at the base of synclines or top of anticlines.
- Sills and Dykes: Horizontal and vertical sheets of intrusive rocks, respectively. Sills are horizontal, while dykes are vertical or steeply inclined rock formations. A notable example is the Deccan Traps in Western Maharashtra.
These intrusive landforms are primarily found in areas like the Deccan Plateau.
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Volcanic eruptions unleash molten lava, ash and gases causing widespread destruction, displacement and environmental disruption threatening lives, livelihoods and ecosystems with lasting impacts on local communities and global climate. Volcanic eruptions have significant socio economic effects on neRead more
Volcanic eruptions unleash molten lava, ash and gases causing widespread destruction, displacement and environmental disruption threatening lives, livelihoods and ecosystems with lasting impacts on local communities and global climate.
Volcanic eruptions have significant socio economic effects on nearby communities, impacting various aspects of life –
Effective mitigation and recovery strategies include early warnings, evacuation plans, infrastructure resilience, economic diversification, social support and community led rebuilding initiatives, fostering resilience, promoting equitable recovery and revitalizing livelihoods after volcanic eruptions.
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