Types Of Coral Reefs Types Of Coral Reefs
Study guide for Types Of Coral Reefs (UPSC Civil Services Prelims & Mains). Access key concepts, syllabus details, prep checklist, and interactive practice Types Of Coral Reefs पर UPSC सिविल सेवा परीक्षा अध्ययन गाइड।
Types of Coral Reefs: Fringing, Barrier & Atollsप्रवाल भित्तियों के प्रकार: तटीय प्रवाल भित्ति, अवरोधक भित्ति एवं एटोल
Geomorphological classification of coral reefs based on their proximity to coastlines and Darwin's subsidence theory of reef evolution.
Core Concepts & Provisionsमुख्य अवधारणाएँ एवं संवैधानिक प्रावधान
Conceptual Foundations & Ecosystem Principlesमूल अवधारणाएं एवं पारिस्थितिक सिद्धांत
Geomorphological classification of coral reefs based on their proximity to coastlines and Darwin's subsidence theory of reef evolution.
Salient Provisions, Adaptations & Mechanismsप्रमुख प्रावधान, अनुकूलन एवं कार्यप्रणाली
1. **Fringing Reefs:** Grow directly outward from coastlines with narrow or shallow lagoons (e.g., Gulf of Mannar, Gulf of Kutch, Andaman & Nicobar Islands).
2. **Barrier Reefs:** Linear reefs separated from mainland coastlines by deep, wide navigable lagoons (e.g., Great Barrier Reef of Australia, barrier reef of Fiji).
3. **Atolls:** Circular or ring-shaped coral formations surrounding a central lagoon with no central volcanic island (e.g., Lakshadweep Islands in India, Maldives).
• Darwin's Subsidence Theory: Fringing reef → Volcanic island subsides → Barrier reef → Island completely submerges → Atoll.