[therion] Re: Mud and sand

At 11:53 +0000 16.12.2004, Wookey wrote: *******************************************

I think these are a type of speleothem - calcite raft floating on water. I'mnot sure about a raft cone, but presumably it is some variation. These are certainly quite rare formations....

Typical for Lechuguia cave and simillar karst I think. There is an important difference od mud/clay and sand in sense of sedimentation - the sand sedimented in flowing water but mud/clay in static water, so there should be two different symbols probably. Martin (S) --