MEETINGS. 205 



REPORT OF THE GEOLOGICAL SECTION. 

 SUPERFICIAL DEPOSITS. 



These have again occupied the chief attention of the 

 section. The following exposures have been examined : — 



1. — Vrangue Brickfield. 

 A re-examination of the clay-pits at the Vrangue resulted 

 in the discovery of a, few pebbles at the base of the clay in the 

 north-east corner of the older or southern excavation. Im- 

 mediately under the soil was clayey loam containing some 

 pebbles. It looks a natural formation, but Mr. Eellow says 

 some of it was thrown back from old workings. Underlying 

 this clayey loam are two feet of certainly undisturbed clay, 

 and at the base of this, immediately over the decomposed 

 rock, a few pebbles were found. Three were dug out ; the two 

 larger were of flint, 3in. and 2in. in diameter, a smaller one was 

 of ielsite. 



The surface of the decomposed rock dips at a considerable 

 angle to north and east. In the extreme corner a layer of 

 sand 3ft. thick overlies the decomposed rock, but thins out 

 rapidly to westward and disappears. 



2. — Drain at St. Sampson's. 

 Near the Weighbridge a deposit from 5 to 10 feet thick of 

 head with angular stones was seen. The matrix closely simu- 

 lates decomposed rock. 



3. — New Road from Croft's to La Couture. 

 Entering the cutting from the south, the rock at first 

 reaches the surface, but towards the north (where the brake 

 ends and the field begins) it is overlaid by a deposit of head 

 reaching 6ft. in thickness. The rock underlying this head is 

 much disturbed, and the head contains a bead of large blocks 

 up to 6 cubic feet, apparently derived from the outcrop of rock 

 to the south, 



4. — Hommet Paradis. 

 A quarry in the centre of the islet shows the following 

 section : — 



Soil, 1 foot. 



Rubble head, 15 inches to 3 feet. 

 Raised beach from a few inches to 2 feet. 

 5. — Homtolle. 

 Here we have rubble head overlying raised beach. The 

 rubble head is very compact and forms the roof of several 

 small caves, the underlying rock having been removed by the 

 sea. 



