. Geological magazine. posed in the cliff, rising from the shore, See Plate XXII, a reproduction of a photograph, taken shortly after our visitby Mr. E. T. Mallet, for which and several others of great interest we are indebted tohis kindness. By the aid of this our description, we trust, will be intelligible to thereader. ^ It was not accessible. 3 Wedge-like ends are not uncommon in these great chalk boulders. * In the neighbourhood of these masses, when the tide permitted (which sometimesit did not), we have seen chalk near one mass, clay near the other, but no proof thatthey are continuous
. Geological magazine. posed in the cliff, rising from the shore, See Plate XXII, a reproduction of a photograph, taken shortly after our visitby Mr. E. T. Mallet, for which and several others of great interest we are indebted tohis kindness. By the aid of this our description, we trust, will be intelligible to thereader. ^ It was not accessible. 3 Wedge-like ends are not uncommon in these great chalk boulders. * In the neighbourhood of these masses, when the tide permitted (which sometimesit did not), we have seen chalk near one mass, clay near the other, but no proof thatthey are continuous with the chalk platform, which undoubtedly lies a very few feetbelow them. A memorandum sent us with the photograph by Mr. Mallet isimportant. The foreground is a large mass of blue till, on the level top of which thecamera was placed. It was about a foot above the sea at 4 on May 9th.(About an inch vertical of this foreground has not been reproduced in the Plate, forotherwise the scale must have been dimiuished.). The Chalk Bluffs at Trimingham. 401 the flint bands in which, were nearly horizontal. On the top of eachwas a layer of coarse gravel, followed by much stratified sand withoccasional bands of clay. The eastern of these boulders projectedslightly in advance of the western one, and their ends, so far as theslipped material allowed us to determine, were about nine yardsapart.^ The clay just mentioned is not pebbly, but below high-water mark and perhaps eight feet vertically beneath the base ofthe cliff typical boulder-clay was exposed on the beach. Aboutfifty yards to the east chalk showed up beneath this, and on it, aswe walked in that direction, we saw for a considerable distancepatches of boulder-clay. Evidently ancient denudation has removedthe Forest Bed and Leda myalis sand from this part of the coast, sothat for a considerable distance the bluish-grey boulder-clay rests ona very slightly irregular surface of chalk. We may now mention one or two fundamental we
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Keywords: ., bookcentury1800, bookdecade1860, booksubjectgeology, bookyear1864
