This sheep is posing on some of the world’s most ancient rocks, layers of mud-stones, sand-stones and shales laid down when this incipient Shropshire Hill was still lying in shallow seas somewhere in the Indian Ocean off East Africa. This was followed by much shunting and shifting across the planet, tectonic plates smashing and colliding.
Our most local collision was along the Church Stretton Valley, just over Wenlock Edge, some twelve miles from where we live. To the east of it (some 600 million years ago) volcanic ash and lava formed our well loved hills of Wrekin, Lawley, Caer Caradoc and Ragleth. To the west lay the sedimentary formations of Long Mynd, which around 550 million years ago were folded and thrust upwards along the Church Stretton Fault.
Then in recent times (2.4 million to 20,000 years ago) glaciers slipped and slid along the Mynd’s flanks, although the summit was clear of ice. And then during successive interglacial (warming) periods (300,00-15,000 years ago) melting ice fed stream torrents that cut deep valleys and batches…
Ashes Hollow, one of the Mynd’s stream-cut batches
And so it might be timely to ponder on the momentous natural forces that brought about the formation of this single Shropshire hill – begun in tropical seas half a world away, then wrought by collision, compression, ice and melt-water. And all achieved without the meddling of humanity and on a planet that is endlessly reshaping itself.
View from the Long Mynd’s Carding Mill Valley towards Ragleth Hill
Looking east from the Long Mynd towards the Wrekin
Lens-Artists: Earth Story Please visit Amy to see her very stunning Earth Story photos.