. The Quarterly journal of the Geological Society of London. Section of the Lower Tertiary Beds at the Great Chalk-pit, Balingdon. 1873. (Scale 8 feet to an inch.) feet. a. LondonClay, brown and dark grey, with basement-bed. Reading Blackish, rather sandy clay, andclayey sand 3 | c. Pale greenish-grey, red-mottled, bedded^ sandy clay, the upper part 6 (d. Buff and pale grey, fine, soft, and I somewhat clayey sand, bedded andfirm. The bottom 3 feet or so (d1)pinkish, that tint being stronger atthe lowest half foot (d) about 12 Clayey greensand, very bright-co-lour
. The Quarterly journal of the Geological Society of London. Section of the Lower Tertiary Beds at the Great Chalk-pit, Balingdon. 1873. (Scale 8 feet to an inch.) feet. a. LondonClay, brown and dark grey, with basement-bed. Reading Blackish, rather sandy clay, andclayey sand 3 | c. Pale greenish-grey, red-mottled, bedded^ sandy clay, the upper part 6 (d. Buff and pale grey, fine, soft, and I somewhat clayey sand, bedded andfirm. The bottom 3 feet or so (d1)pinkish, that tint being stronger atthe lowest half foot (d) about 12 Clayey greensand, very bright-co-loured at top, with a few green-coated flints at the bottom, and hereand there some higher up. Thisbed is noticed by W. Smith, inhis Geological Map of Essex (1820), as Greensand, calledDevils Dung, a name still kept in^ the locality about 2 Chalk. A thin bed of tabular flint (of alter-nate black and white layers) at top (x).Other flints rare (?=the Margate Chalk ofKent). The top flint bed is noticed by , in his Geological Map of Suffolk (1819) thus :<— Chalk, covered with a Floorof Stratified Flint. enough here to notice the one great section where all the beds fromthe London Clay to the Chalk may be seen. This is in a pit on theright slope of the valley of the Stour, just south of
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Keywords: ., bookcentury1800, bookdecade1840, bookidquarte, booksubjectgeology
