|
|
| Kienast, M; Higginson, Mj; Mollenhauer, G; Eglinton, Ti; Chen, Mt; Calvert, Se. |
| The bulk sedimentary nitrogen isotopic composition of two cores from nearby sites on the northern slope of the South China Sea ( Site 17940 and Ocean Drilling Program (ODP) Site 1144) differs by up to > 2 parts per thousand during the last glacial period. Given their close proximity, both core sites are located in the same biogeographic zone and nutrient regime, and it is thus unlikely that this offset is due to a true gradient in surface ocean conditions. In an attempt to resolve this offset, we have investigated the possible effects of two sedimentological parameters that can affect bulk sedimentary delta(15)N, namely, the variable contribution of inorganic N to bulk N in the sediment and the grain-size dependence of bulk delta(15)N. We find that... |
| Tipo: Text |
|
| Ano: 2005 |
URL: https://archimer.ifremer.fr/doc/00230/34076/32639.pdf |
| |
