Call number:
AWI G2-18-91716
Type of Medium:
Monograph available for loan
Pages:
134 S
,
Ill., graph. darst
,
24 cm
Language:
English
Note:
CONTENTS:
1. Introduction. -
1.1. Research at the NEA dumpsite: CRESP and the DORA project. -
1.2. Acknowledgments. -
1.3. Source term: the radionuclides of interest. -
2. Material and methods. -
2.1. Cruises to the dumpsite. -
2.2. Sampling scheme. -
3. Geochemistry. -
3.1. Introduction. -
3.2. Methods. -
3.3. Recent sedimentological history. -
3.4. Elemental and mineralogical composition of the sediment. -
3.4.1. Mineralogical composition. -
3.4.2. Major elements. -
3.4.3. Trace elements. -
3.5. Early diagenetic reactions in the sediment. -
3.5.1. Mineralization of organic matter. -
3.5.1.1. Sequence of electron acceptors and changes in redox conditions. -
3.5.1.2. Oxygen reduction. -
3.5.1.3. Nitrate, manganese and iron reduction. -
3.5.1.4. Sulfate reduction. -
3.5.2. Cation exchange. -
3.5.3. Dissolution of carbonates. -
3.6. Trace element diagenesis. -
3.6.1. Trace metals. -
3.6.2. Mn, Fe, Co. -
3.6.3. Cu, Ni, Cd, Zn. -
3.6.4. Rare earth elements. -
3.6.5. Trace element mobility; the concept of distribution coefficients. -
3.7. Diagenetic modeling. -
3.8. Measurements in the nepheloid layer. -
3.9. Conclusions on the behaviour of each of the radionuclides of major concern. -
4. Biology. -
4.1. Introduction. -
4.2. Methods. -
4.2.1. Meiofauna. -
4.2.2. Macrofauna and large meiofauna. -
4.2.3. Megafauna. -
4.2.4. Diversity of Nematoda. -
4.2.5. Trophic structure of Nematoda. -
4.3. Results and discussion. -
4.3.1. Meiofauna. -
4.3.1.1. Density. -
4.3.1.2. Biomass. -
4.3.1.3. Horizontal distribution. -
4.3.1.4. Vertical distribution. -
4.3.1.5. Composition and trophic structure of the Nematoda fauna. -
4.3.1.6. Diversity of Nematoda. -
4.3.2. Macrofauna. -
4.3.3. Large meiofauna. -
4.3.4. Comparison of meio- and macrofauna. -
4.3.5. Megafauna. -
4.3.6. Chemical analyses of bottom fishes. -
4.4. Foodweb. -
4.5. Primary production. -
4.6. Conclusions. -
5. Bioturbation. -
6. Summary and conclusions regarding the fate of radionuclides released at the seafloor. -
7. References.
Location:
AWI Reading room
Branch Library:
AWI Library
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