| 摘要 | 第4-6页 |
| Abstract | 第6-8页 |
| Acknowledgement | 第9-18页 |
| Chapter 1 Introduction | 第18-43页 |
| 1.1 Oceanographic settings of the East China Sea and eastern Equatorial Atlantic | 第20-26页 |
| 1.1.1 East China Sea modern oceanographic settings | 第20-22页 |
| 1.1.2 Eastern Equatorial Atlantic and West Africa's climates-Modern conditions | 第22-26页 |
| 1.2 Organic molecular markers overview | 第26-39页 |
| 1.2.1 Persistent organic pollutants | 第26-29页 |
| 1.2.2 Organic geochemical tools | 第29-39页 |
| 1.3 Aim, objectives and outline of this thesis | 第39-43页 |
| 1.3.1 Aim and objectives | 第39-40页 |
| 1.3.2 Thesis outline | 第40-41页 |
| 1.3.3 Outline of the author's contribution | 第41-43页 |
| Chapter 2 Distribution and ecological risk of organic pollutants in thesediments and seafood of Yangtze Estuary and Hangzhou Bay,East China Sea | 第43-64页 |
| 2.1 Materials and methods | 第44-49页 |
| 2.1.1 Sample collection and pretreatment | 第44-45页 |
| 2.1.2 Chemicals | 第45-47页 |
| 2.1.3 POPs analysis | 第47-48页 |
| 2.1.4 Quality Assurance/Quality Control | 第48页 |
| 2.1.5 Data analysis of POPs in surface sediment samples | 第48-49页 |
| 2.2 Results and discussion | 第49-62页 |
| 2.2.1 PAHs in sediments | 第49-54页 |
| 2.2.2 PCBs in sediments | 第54-55页 |
| 2.2.3 OCPs in sediments | 第55-59页 |
| 2.2.4 Potential ecological risks of POPs in sediments | 第59-60页 |
| 2.2.5 Concentration of POPs in marine organisms | 第60-62页 |
| 2.3 Conclusions | 第62-64页 |
| Chapter 3 A 50 kyr record of terrigenous organic matter composition fromthe eastern Equatorial Atlantic: Insights from lignin and carbon isotopes | 第64-91页 |
| 3.1 Material and methods | 第65-70页 |
| 3.1.1 Stratigraphy of core | 第66-67页 |
| 3.1.2 Radiocarbon dating | 第67页 |
| 3.1.3 Core chronology | 第67页 |
| 3.1.4 Elemental analyses and stable carbon isotope analyses | 第67-69页 |
| 3.1.5 Extraction and analysis of lignin oxidation products | 第69-70页 |
| 3.2 Results | 第70-77页 |
| 3.2.1 Sediment lithology | 第70-71页 |
| 3.2.2 Stratigraphy | 第71-72页 |
| 3.2.3 Age model | 第72-74页 |
| 3.2.4 Elemental and stable carbon isotope results | 第74页 |
| 3.2.5 Lignin-derived phenol composition and related indices | 第74-77页 |
| 3.3 Discussion | 第77-90页 |
| 3.3.1 Characterization of OM based on elemental, stable carbon isotope andsource specific biomarker | 第77-81页 |
| 3.3.2 Lignin phenol, related indices and p-hydroxy benzenes composition | 第81-87页 |
| 3.3.3 Estimate of marine, soil and plant OM fractions using a threeend member mixing model | 第87-89页 |
| 3.3.4 Geochemical and paleoclimatic implications | 第89-90页 |
| 3.4 Conclusions | 第90-91页 |
| Chapter 4 n-alkane parameters from the eastern Equatorial Atlantic sedimentsreflect continental vegetation and climate conditions for the past 50 kyr | 第91-115页 |
| 4.1 Material and methods | 第92-96页 |
| 4.1.1 Samples and geological setting | 第92-93页 |
| 4.1.2 Radiocarbon dating | 第93-94页 |
| 4.1.3 Sample extraction and compound isolation | 第94页 |
| 4.1.4 Analysis of n-alkanes | 第94-95页 |
| 4.1.5 Stable carbon isotope analysis of n-alkanes | 第95页 |
| 4.1.6 Definitions | 第95-96页 |
| 4.2 Results and discussion | 第96-114页 |
| 4.2.1 Age model and sedimentation rate | 第96-98页 |
| 4.2.2 n-Alkane absolute abundance | 第98-99页 |
| 4.2.3 Carbon preference index (CPI) | 第99-100页 |
| 4.2.4 Chain length distribution | 第100-103页 |
| 4.2.5 Leaf wax n-alkanes carbon stable isotope composition in sediment | 第103-106页 |
| 4.2.6 Abundance(%)of C_4 plant contribution in sediment | 第106-107页 |
| 4.2.7 C_4 plant contributions based on δ~13C_(31),δ~(13)C_(WM29-33) and ACL_(27-33) values | 第107-110页 |
| 4.2.8 Factors controlling the abundance of C_4 plant | 第110-114页 |
| 4.3 Conclusions | 第114-115页 |
| Chapter 5 Conclusions and future work | 第115-119页 |
| 5.1 Conclusions | 第115-117页 |
| 5.1.1 Conclusions on POPs | 第115页 |
| 5.1.2 Conclusions on organic geochemical tools | 第115-117页 |
| 5.2 Future work | 第117-119页 |
| 5.2.1 Future work on POPs | 第117页 |
| 5.2.2 Future work on organic geochemical tools | 第117-119页 |
| References | 第119-150页 |
| Appendix | 第150-172页 |
| Biography | 第172页 |
