U.S. Geological Survey (USGS), Box 25046, MS 939, Denver, CO 80225-0046, USA, Email: nichols@usgs.gov
Associate Editors:
D.J. Batten
School of Earth, Atmospheric and Environmerntal Sciences, University of Manchester, Simon Building, Manchester, M13 9PL, UK, Email: david.batten@manchester.ac.uk
D.J. Horne
Dept. of Geography, Queen Mary, University of London, 327 Mile End Road, London, E1 4NS, UK, Email: d.j.horne@qmul.ac.uk
School of Earth & Environmental Sciences, University of Portsmouth, Burnaby Building Burnaby Road, Portsmouth, PO1 3QL, UK, Email: darren.naish@port.ac.uk