लेखक: Andrew Parker

Russell Harmon is a Program Manager at the ARL Army Research Office, where he manages the extramural basic research program in terrestrial sciences which focuses on terrain properties and characterization, terrestrial processes and dynamics, terrestrial system analysis and modeling, and geospatial information science. University and. He is a Fellow of the Geological Society of America and National Speleological Society and Past President of the International Association of Geo Chemistry. Andrew Parker is an environmental geochemist, and was formerly Head of the Postgraduate Research Institute for Sedimentology, University of Reading, UK. He has supervised 60 Ph D students from many countries, and is Fellow of the Royal Society of Chemistry, the Geological Society, and the Mineralogical Society.