Vol. 55.] CHALK AND DRIFT IN MOEN AND RtJGEN. 307 



included in one place a boulder of Chalk about 2 yards in diameter, 

 perhaps also another. 



The Drifts of Moen form two divisions. One is a stratified, more 

 or less clayey sand, occasionally passing into gravel, the latter 

 being often coarse and irregularly bedded. It is distributed un- 

 equally over the uneven surface of the Chalk, being nearly or quite 

 absent from the higher parts, but attaining sometimes a thickness 

 of a few yards in the hollows. This deposit has often slipped down 

 over the face of the Chalk- cliffs, but is never, so far as we could 

 see, interstratified with that rock. The second division is a dull 

 grey, slightly sandy clay, containing stones. It underlies the other, 

 and is apparently much more local in its occurrence, being the deposit 

 which is more or less intercalated with the Chalk. Among the 

 stones we recognize the following materials : chalk, small and not 

 abundant, except very locally ; fiint rounded and subangular, from 

 very small up to 8 or 9 inches in diameter ; granitoid rocks, seldom 

 exceeding 1 foot in diameter ; quartzite or hard sandstone (rare) ; 

 dark-coloured compact rocks, some, perhaps, a rather hard limestone, 

 some possibly an argillite. They are generally well rounded, and 

 the majority of the pebbles vary from the size of a small hen's egg 

 downwards. Larger, however, occur, and these are sometimes 

 striated. Boulders of Scandinavian rocks, often a yard in diameter, 

 but sometimes ranging up to about 5 feet, lie on the beach, and are 

 dotted about inland. No doubt they occur in the clay, but we did 

 not happen to meet with a case of which we could be certain. 



Our descriptions of sections, both here and in Kiigen, will be 

 arranged, not in topographical order, but as they seem to throw 

 light on the problems solved. 



(1) The sketch on p. 308 (fig. 1) — taken from the beach (perhaps 

 representing Forchhammers Pynt) — shows the relations of the grey 

 Boulder Clay and the Chalk. It gives an oblique section of a fold 

 in the latter which is plunging in the general direction of the sea, 

 and exhibits a small wedge-shaped inclusion of the grey Boulder 

 Clay with the lines of nodular flints dipping down, at last almost 

 at right angles to its upper surface.^ The remainder of the 

 cliff probably consists wholly of Chalk. A second section, some 

 distance removed (? near Maglevands Pynt), shows an inclusion of 

 the usual clay, which again is not conformable with the folding 

 in the Chalk, and is suggestive of the infilling of a gully. 

 Again, in a third section, occurring by the beach north of the 

 path to a restaurant, under Dronningstolen, we see the usual grey 

 pebbly clay, dipping at a moderate angle in a northerly direction. 

 Here the upper surface of the clay is more nearly parallel with the 

 layers of flint in the Chalk, but the junction of the two rocks is 

 irregular, and the former for the last 6 inches or so is streaked 

 with thin seams of powdery chalk. 



' Probably the case represented by Lyell, Trans. Geol. Soc. ser. 2, vol. v, pt. i 

 (1837) fig. 10, p. 255, but he omits the flint-bands in the part above the clay. 



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