Although marine productivity is a key parameter in the global carbon cycle, reliable
estimation of productivity in ancient marine systems has proven difficult. In this study, we …

Publisher Summary This chapter discusses the elemental proxies for palaeoclimatic and
palaeoceanographic variability in marine sediments. Physical and biological processes …

This paper is a synthesis of the use of selected trace elements as proxies for reconstruction
of paleoproductivity and paleoredox conditions. Many of the trace elements considered here …

XRF core scanners, with their rapid and non-destructive analytical capability, have now
been used for two decades in the analysis of marine sediments. Initially they were used to …

The mineral barite (BaSO4) can precipitate in a variety of oceanic settings: in the water
column, on the sea floor and within marine sediments. The geological setting where barite …

Variations in the accumulation rate of barium in marine sediments are thought to be
indicative of variations in marine biological productivity through time. However, the use of Ba …

The Paleocene‐Eocene thermal maximum (PETM) is one of the best known examples of a
transient climate perturbation, associated with a brief, but intense, interval of global warming …

The Wufeng organic-rich shale is widespread in the Upper Yangtze platform, and it is one of
the most advantageous shale gas producers in China. Its deposition commenced with the …

Marine barite (BaSO4) is produced in the water column in association with decaying organic
matter; its distribution in the water column and in core-top sediments closely corresponds …

Evidence from sediments in cores collected from within the present oxygen-minimum zone
(OMZ; 600–1200 m) on the central and northern California margins record several episodes …