Quicksand can form in any location where water and sand meet, such as near rivers, lakes, beaches, marshy areas, and natural springs. In Brazil, quicksand was found around a lagoon where bacteria created a crust that looked like the regular ground but turned into quicksand when stepped on. The presence of salt results in clay particles clumping together instead of intermingling with the grains of sand, and adds to quicksand's instability.īut some quicksands form without the presence of salt. Quicksand often has salt and clay mixed in as well. ![]() This saturation occurs when water isn't able to flow away, usually due to the presence of dense material, such as a bed of clay that stops drainage. However, unlike slightly damp beach sand, quicksand is saturated with water. ![]() What Is Quicksand Made Of? Credit: Bert Hardy/ Picture Post via Getty ImagesĪt first glance, quicksand looks like wet sand you typically see at the beach, which explains why people step in it without thinking twice.
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