The Deccan Traps’ Basalt Aquifer System and Groundwater Salinization Fronts in Maharashtra’s Semi-Arid Corridors

德干暗色岩玄武岩含水层系统与马哈拉施特拉邦半干旱走廊地下水盐化锋面

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Fractured basalt aquifers beneath the Deccan Traps store India’s largest hard-rock groundwater reserves, yet exhibit highly anisotropic flow paths governed by joint orientation and weathering depth.
Intensive borewell drilling since the 1980s has lowered water tables by up to 30 meters in districts like Ahmednagar, triggering saline intrusion from deeper, mineralized fracture zones.

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