They occur when water dissolves soluble rocks, such as limestone, gypsum, or chalk, creating underground voids. Over time, these cavities can enlarge, and if the land surface can no longer support ...

There’s an element of reporting here (the more they are, the more we look for them) but they do seem to have been increasing in recent years due to increasingly heavy rainfall, development on land ...

Sinkholes that result from the removal of a soluble rock such as chalk, gypsum or limestone are called solution sinkholes. Streams or rivers that enter a sinkhole and disappear underground are ...

Gypsum may be an unfamiliar name to many but we are surrounded by it every day. It is a mineral used to make types of plaster which coat our homes, schools and offices - and in Cumbria sits the ...