File:GA Image 0444.jpg
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Summary
Figure 10.—Deep borings of S.E. England.
(Thicknesses from H. B. Woodward's Geology of England and Wales.) By permission of the Essex Field Club.
Index to numbers, showing the relative ages of the various beds.
1. Alluvium;-made ground, etc.
2. Tertiary Beds.
3. Chalk.
4. Upper Greensand.
5. Gault.
6. Lower Greensand.
7. Purbeck Beds.
8. Portland Beds.
9. Kimeridge Clay.
10. Corallian Beds.
11 Oxford Clay.
12 Great Oolite.
13 Lower Carboniferous Beds.
14 Devonian and Old Red Sandstone.
14a Beds of doubtful age. Old Red or New Red Sandstone.
15. Upper Silurian Beds.
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 | 19:23, 3 February 2022 | 1,334 × 2,016 (431 KB) | Scotfot (talk | contribs) | Figure 10.—Deep borings of S.E. England. (Thicknesses from H. B. Woodward's Geology of England and Wales.) By permission of the Essex Field Club. Index to numbers, showing the relative ages of the various beds. 1. Alluvium;-made ground, etc. 2. Tertiary Beds. 3. Chalk. 4. Upper Greensand. 5. Gault. 6. Lower Greensand. 7. Purbeck Beds. 8. Portland Beds. 9. Kimeridge Clay. 10. Corallian Beds. 11 Oxford Clay. 12 Great Oolite. 13 Lower Carboniferous Beds. 14 Devonian and Old Red... |
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