Table 4 Structural features
From: Flood vulnerable zones in the rural blocks of Thiruvallur district, South India
Structural Features | Characteristics | Description |
|---|---|---|
Lineament | Linear features may be a geological contact/fault/ shear or fractured jointed zone | Infiltration is good in fracture/ jointed lines and in geological contact. |
Lineament intersection zone | Irregular fractures with varying density criss cross and conjugate system of joints | Recharge from runoff water, water bodies acting deep conductive of groundwater from long distance |