The speaker for the program, “A Small Stalagmite in a UK Cave and the Younger Dryas Cold Event,” will be Gareth Davies, according to an ORION news release. It is free and open to the public. A live ...

The Younger Dryas Boundary strewnfield is shown (red) with YDB sites as red dots and those by eight independent groups as blue dots. Also shown is the largest known impact strewnfield, the ...