a site-specific index based on weathering forms visible in central oxford, uk特定场地指数基于中部风化形成可见的牛津大学,英国.pdfVIP

Geosciences 2012, 2, 277-297; doi:10.3390/geosciences2040277 OPEN ACCESS geosciences ISSN 2076-3263 /journal/geosciences Article A Site-Specific Index Based on Weathering Forms Visible in Central Oxford, UK Mary J. Thornbush School of Geography, Earth and Environmental Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK; E-Mail: m.thornbush@bham.ac.uk; Tel.: +44-(0)121-414-8143; Fax: +44-(0)121-414-5528 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