The weathering rates of some sandstone cliffs central Weald, England
作者:
Allan Pentecost,
期刊:
Earth Surface Processes and Landforms
(WILEY Available online 1991)
卷期:
Volume 16,
issue 1
页码: 83-91
ISSN:0197-9337
年代: 1991
DOI:10.1002/esp.3290160109
出版商: John Wiley&Sons, Ltd
关键词: Sandstone;Weathering rates;Correlation;Climate;Algal growth
数据来源: WILEY
摘要:
AbstractShort‐term (1‐30 months) weathering rates were obtained for steep cliffs of Cretaceous Ardingly Sandstone in southern England, using a new photographic method. Mean rates for an exposed and a sheltered outcrop were 0.11 and 0.033 mm a−1respectively. Significant (p<0.1) positive correlations were obtained with illumination and algal biomass and a significant negative correlation (p<0.05) with slope angle. There was no correlation with grain size, porosity, or mean surface temperature. Highest weathering rates were observed on south‐ and west‐facing exposed cliffs. The results are discussed with reference to algal growth, climate, and wind
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