Table 2 Liquefaction Susceptibility of the lithological units present in Chennai

Sand fluvial-point bar deposit-sand and sandy clay

3

Possible

Sand marine-beach deposit-medium grey brown sand with leaves

3

Possible

Sand marine-strand flat deposit-medium grey brown sand

3

Possible

Sand paleo tidal flat

3

Possible

Black clay and sand tidal channel bar

2

Likely

Black clay marine-tidal flat deposit-black clay

2

Likely

Sand, silt and salt

2

Likely

Clay and sand marine-estuary deposit-sand and silty clay black mud with shells

2

Likely

Clay and silt flood plain deposit-black clay and sandy clay

2

Likely

Shale

2

Likely

Silt active levee deposit-sandy silt

2

Likely

Charnockite

1

Not Possible