PROBLEMS ASSOCIATED WITH QUANTITATIVE MAGNETIC SOURCING OF SEDIMENTS OF THE SCARBOROUGH TO MABLETHORPE COAST, NORTHEAST ENGLAND, UK

There are many problems associated with beach tracing and sand provena nce in coastal studies over short and long timescales. Here, an attemp t has been made to trace the source sediments of the beaches along the Holderness and Humberside coastline of northeast England, between Sca rborough and Mablethorpe, using rapid field and laboratory magnetic te chniques. The methodology employed involves classification and modelli ng of sediment sources and mixtures based on their magnetic properties . Focus is given to a strong ferrimagnetic black sand (heavy mineral) which dominates the magnetic signal of the beach mixtures. Delimiting the spatial extent, quantifying and tracing of this mineral may give a good indication of wave energy and sediment movement processes along this coastline. This paper represents results obtained during a short- time-scale survey.