Ph.D-The Influence of Early Diagenesis on Trace Element and Molybdenum Isotope

mmb32

国外关于成岩作用的博士论文。
This thesis focuses on molybdenum and molybdenum stable isotope geochemistry in
marine and lacustrine sedimentary settings. In addition, this work examines a number of
other redox-sensitive trace metals (e.g. U, Cd, and Re) whose behavior may also vary
through the range of environments captured in this study. The sites that are studied have
been chosen to represent a broad range in sedimentary oxidation-reduction (redox) potential.
Sediments have been analyzed from a variety of locations, including the California
continental margin, the Mexico margin, the Peru margin, and two Eastern Pacific hemipelagic
sites. Decades of previous research at all the study sites provide the necessary
diagenetic framework essential for interpreting redox-sensitive trace metal behavior. The
purpose of this chapter is to review what is known about Mo geochemistry, to summarize the
available geochemical data from these locations, and to provide a framework for the trace
metal and Mo isotope data discussed in subsequent chapters.