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A Site-Specific Index Based on Weathering Forms Visible in Central Oxford, UK
School of Geography, Earth and Environmental Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK
Received: 15 September 2012; in revised form: 1 November 2012 / Accepted: 6 November 2012 / Published: 12 November 2012
Abstract: The authenticity of much of the stone-work along Queen’s Lane in central Oxford, UK presented an opportunity to produce a photographic survey from which a weathering index could be established. This represents a site-specific approach to devising a weathering form. Because it is photo-based, weathering forms are visible for comparison and classification purposes across disciplines. Limestone pertaining to building ashlar and plinths along this roadway, which mainly belong to Queen’s College, St Edmund Hall, New College, and Hertford College, was classified according to this newly introduced weathering index, the size-extent (S-E) index, through consideration of type, size, extent, impact, and trigger. This size- (range) and extent-based classification system enables for the assessment of weathering forms of various types, including soiling and decay features as well as those potentially expected in the presence of vegetation and animals. Weathering forms of a range of sizes were present, with a slightly greater abundance of small types (mm-cm in the micro- to mesoscale) and more discrete types with a low extent. For this location in central Oxford, chemical weathering was found to be the predominant type of soiling and decay.
Keywords: soiling; decay; weathering forms; physical; chemical; biological weathering (bioweathering); cross-disciplinary; photographic survey; feature visualisation; causation; urban environment
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Thornbush, M.J. A Site-Specific Index Based on Weathering Forms Visible in Central Oxford, UK. Geosciences 2012, 2, 277-297.
Thornbush MJ. A Site-Specific Index Based on Weathering Forms Visible in Central Oxford, UK. Geosciences. 2012; 2(4):277-297.
Thornbush, Mary J. 2012. "A Site-Specific Index Based on Weathering Forms Visible in Central Oxford, UK." Geosciences 2, no. 4: 277-297.