<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Beaupreacute, S. R.</style></author><author><style face="normal" font="default" size="100%">Druffel, E. R. M.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Constraining the propagation of bomb-radiocarbon through the dissolved organic carbon (DOC) pool in the northeast Pacific Ocean</style></title><secondary-title><style face="normal" font="default" size="100%">Deep-Sea Research Part I: Oceanographic Research Papers</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">1705</style></keyword><keyword><style  face="normal" font="default" size="100%">Druffel Research Group</style></keyword><keyword><style  face="normal" font="default" size="100%">Keck / AMS Lab</style></keyword><keyword><style  face="normal" font="default" size="100%">Research</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2009</style></year><pub-dates><date><style  face="normal" font="default" size="100%">10/2009</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://dx.doi.org/10.1016/j.dsr.2009.05.008</style></url></web-urls></urls><number><style face="normal" font="default" size="100%">10</style></number><volume><style face="normal" font="default" size="100%">56</style></volume><isbn><style face="normal" font="default" size="100%">0967-0637</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">This study extends the 1991-1995 records of marine dissolved organic carbon (DOC) concentrations and Delta 14C values at hydrographic Station M (34deg50'N, 123deg00'W) with new measurements from a frozen (-20degC) archive of samples collected between April 1998 and October 2004. The magnitudes and synchronicity of major Delta 14C anomalies throughout the time-series imply transport of DOC from the surface ocean to depths of at least 450 m on the timescale of months. Keeling plots of all measurements at Station M predict a continuum of possible background DOC compositions containing at least 21 muM of -1000 0/ 00 (i.e., ges 57,000 14C years) DOC, but are more consistent with mean deep DOC (38 muM, -549 0/ 00; i.e., ~6,400 14C years). These results and coral records of surface dissolved inorganic carbon (DIC) Delta 14C were used to estimate pre-bomb DOC Delta 14C depth profiles. The combined results indicate that bomb- 14C has penetrated the DOC pool to depths of ges450 m, though the signal at that depth is obscured by short-term variability. [All rights reserved Elsevier].</style></abstract><accession-num><style face="normal" font="default" size="100%">INSPEC:11083226</style></accession-num></record></records></xml>