The murder of Miss Thecla Gerken remains a mystery to this day. She was buried in the family plot at the Catholic cemetery on the outskirts of Woonsocket, South Dakota. Her gravestone stands next to that of her father, John E. Gerken.
Permafrost is soil, rock or sediment that is frozen more than two consecutive years. In areas not overlain by ice, it exists beneath a layer of soil, rock or sediment, which freezes and thaws annually and is called the active layer.xceptions occur in un-glaciated Siberia and Alaska where the present depth of permafrost is a relic of climatic conditions during glacial ages where winters were up to 11 Â°C (20 Â°F) colder than those of today.
So, permafrost is the layer of ground - the soil and rock - that has been frozen for at least two years. Some of it has been around since the last ice age. It can be found in continuous, discontinuous or sporadic patterns in regions of the world that have been cold for a very long time.