Yol. 70.] GLACIAL GEOLOGY OF EAST LANCASHIRE. 



227 



VII. Appendix. 



Instances 1 of 'Terminal Curvature' of Rocks 

 underlying Drift. 



(In all these the pressure has acted up hill.) 



Locality and Elevation. 



Description of Section. 



Direction of 

 j Pressure. 



1. Black Clough Head, south of 

 Boulsworth Hill ; 1370 feet. 



i 2 feet of Boulder Clay resting on 

 4 feet of crumpled shale — un- 

 disturbed shale below. 



East. 



2. Birkin Clough, south of 

 Widdop Cross ; 1350 feet. 



Big boulders forced into shale. 



1 



South. 



3. Mere Clough, 2 miles south- 

 east of Burnley; 740 feet. 



1 foot of sandy Boulder Clay; 

 boulders forced into a broken- 

 up surface of flaggy sandstone. 



South-East. 



Green's Clough, south-west 

 of Portsmouth (Cliviger 

 gorge) ; 



4. 1250 feet. 



5. 1300 feet. 



Thin Drift on shale ; shale 

 contorted at the surface. 



Clayejr gravel on 18 inches of 

 shale, contorted and dragged 

 over. Undisturbed shale 

 below. 



South. 

 South-East. 



6. North of the summit of 

 Heald Moor ; 1300 feet. 



Boulder Clay worked into con- 

 torted shale. 



South-East. 

 South-East. 



1 

 7. Anchor Clough, north-east 

 of Ramsbottom ; 1295 to , 

 1350 feet. 



Clay with subangular boulders, 

 resting upon and mixed with 

 18 inches of contorted and 

 broken-up shale. Undisturbed 

 shale below. 



8. Above ' Long Causeway,' 

 east of the Wardle valley ; 

 1100 feet. 



Boulder Clay worked into con- 

 torted shale. Undisturbed 

 shale below. 



North. 



Indicated on the map (PI. XXXIII) by dotted arrows. 



