154 



THE BURNING CLIFF AT LYME REGIS. 



It should at once be remarked that the burning mound is a 

 small affair, and has no connection with the landslip beyond the 

 fact that the two are in close proximity. 



I. The Cliff and Its Structure. 



In the first place the exact locality of these occurrences 

 must be indicated. This is a part of the cliff between Lyme 

 Regis and Black Yen, commencing about a-quarter of a mile 

 N.E. of Lyme Church. The site of the landslip is near 

 one end of this tract, and the burning mound is on the 

 surface of a small plateau or terrace near the other end. The 

 position of each is indicated on the accompanying map. 

 (Plate I.) 



At the place where the slip has occurred the actual seaward 

 cliff is not much over loo feet high, but behind it are two 

 terraces of varying width, each backed by a steep clifF-like 

 slope, and the second of these rises to about 250 feet above the 

 sea. 



These cliffs and slopes consist of a certain portion of the 

 Lower Lias, and include the following series of beds in descend- 

 ing order : — 



ft. 

 fDark marly shales with much iron pyrites 30 

 Dark shales with large cement stones - 10 

 Dark shaly marls (small Ammonites) - 34 

 Two bands of cement-stones with shaly 



marls and limestones between - 17 



Shaly clays with Ammo7iites Brookei - 35 

 Firestone-nodules ; a band of large 

 cement-stones with Ammonites Birchi 

 (chambers filled with calc-spar) - \\ 



Dark shales with thin layers of limestone 25 

 >^Dark shales with iron pyrites - -50 



The Black 



Marl. 



Zones of 



Am. 



oxynotiis. 



and 



A7n. 



ohlusus. 



