RATES OF STONE LOSS AT ST-PAULS-CATHEDRAL, LONDON

被引:5
|
作者
TRUDGILL, ST [1 ]
VILES, HA [1 ]
COOKE, RU [1 ]
INKPEN, RJ [1 ]
机构
[1] UNIV LONDON UNIV COLL,DEPT GEOG,LONDON WC1E 6BT,ENGLAND
来源
关键词
micro-erosion meter; Portland stone; Stone loss; surface lowering rates;
D O I
10.1016/0957-1272(90)90043-T
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Rates of surface lowering of the Portland stone balustrade of St Paul's Cathedral, London are presented. Long term rates (1718-1987) are derived from measurements of lead plugs (LPI) on the top of the balustrade and average 0.081 mm a-1. Short term rates, provided by micro-erosion meter (MEM) measurements between 1980 and 1985, average 0.06 mm a-1. The use of means obscures important spatial and temporal variability within the data sets. © 1990.
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页码:361 / 363
页数:3
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