[1] Ocean and Earth Science,Department of Earth Sciences
[2] National Oceanography Centre Southampton,undefined
[3] University of Southampton Waterfront Campus,undefined
[4] School of Earth and Ocean Sciences,undefined
[5] Cardiff University,undefined
[6] School of Earth Sciences,undefined
[7] Bristol University,undefined
[8] School of Geographical Sciences,undefined
[9] Bristol University,undefined
[10] University of California,undefined
[11] Organic Geochemistry Unit,undefined
[12] School of Chemistry,undefined
[13] University of Bristol,undefined
[14] Cantock’s Close,undefined
[15] Cabot Institute,undefined
[16] University of Bristol,undefined
[17] †Present addresses: School of Geography,undefined
[18] Earth Science and Environment,undefined
[19] University of the South Pacific,undefined
[20] Suva,undefined
[21] Fiji (E.H.J.); School of Geography,undefined
[22] Earth and Environmental Sciences,undefined
[23] University of Birmingham,undefined
[24] Birmingham B15 2TT,undefined
[25] UK (K.M.E.).,undefined