. Geological magazine. C. False-bedded sands, ferruginous above, bleached at base, 25 feet seen \ EedC. Ditto bleached, projecting into drift, 5 ft. J Crag. 1. Sandy laminated Boulder-clay, 2 Blue laminated Boulder-clay, to 10 ft. The last section I shall notice is in Mr. Allens pit, close to the river-side, and about half a mile south-east of the last-mentioned exposure. This appears to be the pit described by Mr. Whitaker as the Grove. It is of interest as showing two Boulder-clays (cf. Fig. 4.—S. end of Mr. Allens Pit, 1. Lower Boulder-clay, 20 ft. seen. 3. Loam, to 15 ft. 2
. Geological magazine. C. False-bedded sands, ferruginous above, bleached at base, 25 feet seen \ EedC. Ditto bleached, projecting into drift, 5 ft. J Crag. 1. Sandy laminated Boulder-clay, 2 Blue laminated Boulder-clay, to 10 ft. The last section I shall notice is in Mr. Allens pit, close to the river-side, and about half a mile south-east of the last-mentioned exposure. This appears to be the pit described by Mr. Whitaker as the Grove. It is of interest as showing two Boulder-clays (cf. Fig. 4.—S. end of Mr. Allens Pit, 1. Lower Boulder-clay, 20 ft. seen. 3. Loam, to 15 ft. 2. Sand and gravel, 10-12 ft. 4. Upper Boulder-clay, to 16 ft. Fig. 4). The lower one is a leaden-blue clay, often very dark,laminated, and with many chalk boulders, twenty feet being seen,and Mr. Allen informed me that below it a hard sandy rock occurredwith a band of round pebbles below, almost immediately underlainby the Chalk. The hard sandy rock and pebble bed are mostprobably the beds of the Crag which are seen at the bottom of theridge in Mr. Greens pit. It will be noticed that the base of thedrift is here about 150 feet below its position on Balingdon Hill. The Lower Boulder-clay is succeeded by sand and gravel, altogetherlike that of Mr. Greens pit, so that description is same may be said of the succeeding loam, which is here rathermore sandy than on the left bank of the Stour. /. E. Marr—Glacial Deposits^ 267 The Upper Boulder-clay is lighter than the Lower, but otherwisealtogether like it; but it conta
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Keywords: ., bookcentury1800, bookdecade1860, booksubjectgeology, bookyear1864
