Longest sediment flows yet measured show how major rivers connect efficiently to deep sea by Talling, PJ, Baker, ML, Pope, EL, Ruffell, SC, Jacinto, RS, Heijnen, MS, Hage, S, Simmons, SM, Hasenhündl, M, Heerema, CJ, McGhee, C, Apprioual, R, Ferrant, A, Cartigny, MJB, Parsons, DR, Clare, MA, Tshimanga, RM, Trigg, MA, Cula, CA, Faria, R, Gaillot, A, Bola, G, Wallance, D, Griffiths, A, Nunny, R, Urlaub, M, Peirce, C, Burnett, R, Neasham, J, Hilton, R