File:GA Image 0435.jpg
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Summary
Figure 1 Section at Loampit Hill.
LONDON CLAY.
1. Brown Clay, the lower part roughly laminated, about 15 feet on the north, increasing southwards with the dip (about 3°).
2..Basement 'Bed. Flint pebbles, with clay and sometimes sand, thickening south, ward from two inches to a foot or more, resting' evenly on the bed below.
WOOLWICH BEDS, ABOUT 50 FEET.
3. Light-colotired sand, with partings of clay. At one place a little thin friable buff stone - just-at-top:- -Near - the-top a well-marked bed of loose, very light-coloured sand, about 4 'inches thick, which makes more plain small faults (from 2 to 9 -inches down-throw) about to feet, passing down into
4. Laminated Clay, with partings of sand, and with a little selenite. Near the middle many leaves occur. A little below the leaf-bed there is a 4 or 5-inch layer of small flint-pebbles (a), below this is a lignite-bed (b), 3 to 6 inches thick, sometimes with a layer of iron pyrites containing casts of shells; and at one part a sandy lignite at the bottom. Over to feet.
5. Brown Sand, about 3 feet.
6. Sandy Clay, about 2 feet.
7. Clay Shell-bed (Cyrena), 1½ feet.
8. Oyster-bed, 2 feet.
9 Clay Shell-bed (Cyrena), a few flint pebbles at bottom, xi feet.
10. Yellowish Clay, with race and soft calcareous matter, 1 foot 5 inches (less in parts).
11. Pebble-bed, sandy; the pebbles irregularly arranged (not bedded). ? False bedded in parts, red at the top part, over 12 feet.
12 Bottom Bed. Light-coloured sand, with layers of flint pebbles, at the bottom part greenish sandy clay and clayey sand with a few pebbles; 6 to 8 feet, resting on a worn surface of the next bed.
THANET SAND.
13 Thanet Sand, the uppermost 6 or 8 feet, yellowish and iron-stained, then 20 feet or more with a pale pinkish grey tint, total thickness probably 40 feet. Green-coated flints at the bottom, resting regularly and conformably on
CHALK WITH FLINTS.
| From: A record of excursions made between 1860 and 1890. Edited by Thomas Vincent Holmes , F.G.S. and C. Davies Sherborn, F.G.S. London: Edward Stanford [For the Geologists’ Association], 1891. Source: Cornell University copy on the Internet Archive (Public domain work) |
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| current | 20:18, 2 February 2022 | Error creating thumbnail: File missing | 1,206 × 2,023 (782 KB) | Scotfot (talk | contribs) | Figure 1 Section at Loampit Hill. From: A record of excursions made between 1860 and 1890. Edited by Thomas Vincent Holmes , F.G.S. and C. Davies Sherborn, F.G.S. London: Edward Stanford [For the Geologists’ Association], 1891. LONDON CLAY. 1. Brown Clay, the lower part roughly laminated, about 15 feet on the north, increasing southwards with the dip (about 3Q). 2..Basement 'Bed. Flint pebbles, with clay and sometimes sand, thickening south, ward from two inches to a foot or more, restin... |
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