Wartime Lessons in Erosion
By: Bailey, E.B
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Material type: 
ArticleDescription: 229 - 231 pp ; Illustration.Subject(s): Physical geology | Earth fallen upon roofs - Great Britain | Military geology | Erosion - Great Britain
In:
Geological magazine : Vol. 78 Iss. 1-6 Year. 1941Summary: During September, 1940, there were many falls of earth and other things upon the roofs of London. An example that I had excellent opportunities of studying consisted of loam, and gravelly loam, distributed in discrete patches over an extensive area. The material must have fallen from a considerable height, for everywhere it moulded itself with flat base to suit its foundation; and, whether forming mere pellets or splashes a few feet in diameter, it developed a surprisingly uniform summit level of little more than 1 inch in height. On breaking the loam across, one always found a system of close, roughly horizontal cracks, a type of rude joint cleavage. This structure persisted despite frequent wettings and dryings, even though when wet the loam became quite sodden.
| Item type | Current location | Collection | Call number | Status | Date due | Barcode |
|---|---|---|---|---|---|---|
Article
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Library and Information Centre Periodical Section | Bound Journal Collection | Not for loan | 002564_21 | ||
Serials/Scientific Journal
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Library and Information Centre Periodical Section | Bound Journal Collection | 550 GEO (Browse shelf) | Available | 002564 |
During September, 1940, there were many falls of earth and other things upon the roofs of London. An example that I had excellent opportunities of studying consisted of loam, and gravelly loam, distributed in discrete patches over an extensive area. The material must have fallen from a considerable height, for everywhere it moulded itself with flat base to suit its foundation; and, whether forming mere pellets or splashes a few feet in diameter, it developed a surprisingly uniform summit level of little more than 1 inch in height. On breaking the loam across, one always found a system of close, roughly horizontal cracks, a type of rude joint cleavage. This structure persisted despite frequent wettings and dryings, even though when wet the loam became quite sodden.
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