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Ground Retreat and Slope Evolution on Plateau-Type Colliery Spoil Mounds at Blaenavon, Gwent

Martin J. Haigh
Transactions of the Institute of British Geographers
Vol. 4, No. 3 (1979), pp. 321-328
DOI: 10.2307/622054
Stable URL: http://www.jstor.org/stable/622054
Page Count: 8
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Ground Retreat and Slope Evolution on Plateau-Type Colliery Spoil Mounds at Blaenavon, Gwent
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Abstract

A 5-year investigation revealed that ground retreat from unvegetated slopes (8·7 mm p.a.) exceeded that from vegetated slopes (2·5 mm p.a.). Similarly, the retreat of the vegetated slope which faced south-west (3·7 mm p.a.) exceeded that from the vegetated slope which faced north-east (1·3 mm p.a.). Maximum retreat scores were recorded on the lower part of the upper convexity and the lower main slope on vegetated slopes and from the mid-slope on the unvegetated slope.

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