Lichen Walk in the Settle area with AP, JA, SK, LK
A Frank Dobson Commemoration Meeting - this is one of the many meetings being held across the country in August to commemorate Frank.
TIme: 10.30am
We will visit several sites in SD86, near Settle, on rocks of different ages, including
1. Rocks south of the South Craven Fault in Giggleswick -sandstones.
(Although the lowest point of our walk at 140m it is the newest rocks - .
Brennand (or Grassington) Grit on top of Pendleton Grit The base of the
millstone grit layers - 329-328 million years old. (Acid rocks) Example of lichens on these rocks here
2. Rocks from the Silurian (Acid Rocks, but with water of mixed pH running over)
3. Great Scar Limestone (Carboniferous) (Basic rocks)
This is an informal walk in which Allan Pentecost, Judith Allinson and Sue and Les Knight will explore the wealth of lichens in this area and welcome others to join them.
Strong footwear, waterproof clothing, suntan lotion recommended
Please contact Judith Allinson for details on zoom-improvement@britishlichensociety.org.uk