(Table 1) Sample description and tetrapyrrole pigment yield at DSDP Leg 60 Holes@en

In order to provide a better understanding of the fate of sedimentary chlorophyll and chlorophyll degradation products in all kinds of environments, we have recently expanded our studies to include examination of sediments returned from Legs which are not rich in organic matter, nor are even primarily biogenic. Eight core samples from the Mariana Basin and Trench, obtained from DSDP Leg 60, were analyzed for products of chlorophyll diagenesis. To date, the sediment samples from the South Philippine Sea have been the most organically barren examined. Through elimination of the bias of examining only sediments rich in organic matter, we hope that the fate of chlorophyllous material on a more global scale will eventually be elucidated.为深入阐明沉积叶绿素及其降解产物在各类环境中的沉积归宿，我们近期将研究范畴拓展至对那些既非富含有机质、亦非主要由生物成因的钻探航次获取的沉积物开展分析。本次研究针对深海钻探计划（Deep Sea Drilling Project, DSDP）第60航次采自马里亚纳海盆与海沟的8个岩芯样品，开展了叶绿素成岩产物的检测分析。截至当前，南菲律宾海的沉积物样品为我们所检测过的有机质最为贫乏的样本。通过规避仅分析富含有机质沉积物的研究偏倚，我们期望最终明确叶绿素类物质在全球尺度下的沉积归宿。