Monday, 24 October 2022

Northern slope Mendip Field Trip

 It is no secret that we have plenty of 'geology' where I live, which is on the southern flanks of the Mendips.  I am a member of the Wells U3A Geology group, and enjoy the regular lectures and field trips.  Recently we visited Burrington Combe which is on the northern flanks of the Mendips close to Cheddar Gorge. On the northern slope of the Mendips,  the strata of limestones dip more steeply than those on the southern slopes.  You can read all about the Geology on line, 

Here are some of my pictures taken on the visit.







 
Further up Burrington Combe we turned to walk along East Twin Brook. which had very little water in it. I choose to walk along the stream bed, as it proved far easier compared to the very muddy path.


Candle Snuff Fungi were in evidence on the sodden dead wood littering the bed. 


Neither I nor fellow members were inclined to go beyond the various swallot hole openings.

East Twin Swallet





I picked up this rock section from the bed of the stream, and only when I had a close look at home found that it contained numerous fish scales, it could be either the the Avon Group/Lower Limestone Shale. 

The slopes of the combe were devoid of most of the vegetation we see today before myxomatosis devasted the rabbit population.  In this old 1931 silent film of a gathering the contrast is easily seen.
  

In the autumn sunshine we could see how the slopes in places had been colonised by invasive species of shrubs such as this Cotoneaster. Along the outcrops of Burrington Combe were groups of goats foraging on the most inaccessible areas.  These free roaming cashmere goats have been here for nearly two decades and form part of the team of the Langford estate that help to maintain a rich biodiversity in the area. 



We have had some excellent lectures from David Rowley who is head of Geology at Wells Cathedral School, and I am hoping that some of his students or the school may just take up my idea of producing a video regarding the Combe, with geology and a good rendition of the Hymn Rock of Ages.  I have searched but YouTube come up with American Choirs with American Scenery, which is all very beautiful but I think the actual place which inspired Rev Toplady to write the popular hymn would be more appropriate. 

Here is a close up of the crinoid rich limestones.

I'll be taking Mr S to explore this area and Burrington Ham again at a later date. Only a few weeks ago, we explored the area from Burrington Combe westwards and across Dolebury Warren and Iron age Fort.




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