1989 Chalk subsidence and collapse
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Pipes, caves and sinkholes in chalk karst in England, liquefaction of putty chalk, collapses over old mines at Jacqueline Close, Bury St Edmunds.
Pipes, caves and sinkholes in chalk karst in England, liquefaction of putty chalk, collapses over old mines at Jacqueline Close, Bury St Edmunds.