Discuss the natural resource potentials of ‘Deccan Trap’.
Approach · directive: “discuss”
What it asks · Describe the resources associated with the basaltic Deccan Trap: soils, building stone, minerals, water and energy, along with the limits on their use.
Open with · The Deccan Traps are a flood basalt province, built by lava flows fed through dykes, that now covers most of the Maharashtra plateau; weathered and jointed, this basalt is a store of several resources.
Cover
- Black soil: basalt weathers into regur, the moisture-retentive black cotton soil of the Maharashtra, Saurashtra and Malwa plateaus.
- Building stone: durable basalt for road metal and ballast; Ellora's caves were dug into a high basalt cliff.
- Minerals: bauxite in laterite caps on plateau and hill ranges; agate and zeolites in gas cavities of the basalt.
- Water: jointed basalt stores groundwater; the Krishna rises near Mahabaleshwar, and the Koyna scarp gives hydel power.
- Energy: open plateaus suit wind and solar; Maharashtra alone has 173.9 GW of wind potential at 150 m.
- Limits: hard-rock aquifers with low yields, rainfed drought-prone farming, soil erosion on slopes, and scars from quarrying.
- Way forward: watershed works, micro-irrigation for thirsty crops, and regulated quarrying with land reclamation.
Close with · Managed as a water-limited landscape, the Trap's soil, stone and wind can sustain growth while meeting SDG 15 (life on land).
Add value (verified)
- UNESCO: the 34 Ellora monasteries and temples were dug into a high basalt cliff near Aurangabad, Maharashtra.Ellora Caves — UNESCO World Heritage Centre ↗“These 34 monasteries and temples, extending over more than 2 km, were dug side by side in the wall of a high basalt cliff, not far from Aurangabad, in Maharashtra.”
- PIB (Global Wind Day 2026): Maharashtra holds 173.9 GW of the assessed wind potential at 150 m.Global Wind Day 2026: Charting India's Path to 100 GW and Beyond — PIB backgrounder (14 June 2026) ↗“Majority of the assessed wind potential at 150 Meter is concentrated in eight high-resource states: Rajasthan: 284.2 GW; Gujarat: 180.8 GW; Maharashtra: 173.9 GW”
Question: UPSC's CS (Main) 2022, GS Paper I — paper ↗. Approach: Minimalist IAS, checked 16 Oct 2026 (how we verify) — UPSC publishes no model answers. ·
Model answer· 225words · Minimalist IAS
The Deccan Traps are a flood basalt province, built by lava flows fed through dykes, covering most of the Maharashtra plateau. This weathered, jointed basalt stores soil, stone, water and energy.
Natural resource potentials
- Black soil (regur): basalt weathers into clay-rich, moisture-retentive black cotton soil across the Maharashtra, Saurashtra and Malwa plateaus, ideal for cotton.
- Basalt flows
- weathering
- regur soil
- cotton belt
- Building stone: durable basalt gives road metal and railway ballast; Ellora's 34 caves were dug into a high basalt cliff.
- Minerals: laterite caps on plateaus hold bauxite, the aluminium ore; gas cavities in the basalt hold agate and zeolites.
- Water: jointed basalt stores groundwater for dug wells; the Krishna rises near Mahabaleshwar.
- Hydel and wind: the steep western scarp powers the Koyna project, and (PIB, 2026) Maharashtra alone has 173.9 GW of wind potential at 150 m.
Limits on their use
- Hard-rock aquifers: low storage gives small, erratic well yields that fail by summer.
- Rainfed farming: the rain-shadow plateau of Marathwada faces recurrent drought; regur turns sticky when wet and cracks when dry.
- Degradation: quarrying scars hills, and erosion strips thin soils from slopes.
Way forward
- Water first: watershed works under PMKSY, micro-irrigation for cotton and sugarcane, and reclamation of quarry pits.
Managed as a water-limited landscape, the Trap's soil, stone and wind can sustain growth while serving SDG 15 (life on land).
Prepared by Minimalist IAS to the answer standard of Shivam Singh (mentor, 7 years) · facts checked against official sources (how we verify) · updated 16 Oct 2026. UPSC publishes no model answers: compare your structure and coverage with this, then write your own.
