Quantifying the rates of biogeochemical processes in marine sediments is essential for
understanding global element cycles and climate change. Because organic matter …

Global cooling in the Cenozoic, which led to the growth of large continental ice sheets in
both hemispheres, may have been caused by the uplift of the Tibetan plateau and the …

For the past 3.8 billion years, the geochemistry of the Earth's surface-its atmosphere, waters
and exposed crust-has been determined by the presence of biota. Photosynthetic organisms …

Throughout Earth history, almost all preserved organic matter has been incorporated in
marine sediments deposited under oxygenated waters along continental margins. Given …

Over the past fifteen years a limited number of monographs concerned with the theory of
transport and reaction of substances in sediments (Berner, 1980; Lerman, 1979; and in part …

We analyzed the redox sensitive elements V, Mo, U, Re and Cd in surface sediments from
the Northwest African margin, the US Northwest margin and the Arabian Sea to determine …

Molybdenum and vanadium are relatively unreactive in seawater and are preferentially
concentrated in sediments overlain by anoxic or near-anoxic waters. We investigate the …

Manganese and iron reduction in marine sediments are known to play important roles in the
biogeochemical cycles of many elements, including carbon, sulfur, phosphorus and several …

Abstract The cycling of Fe, Mn, Ni, Co, Cu, Cr, V, and Mo during early diagenesis was
investigated in sediments from five different depositional environments in the California …

Use of sedimentary organic carbon concentrations as a record of paleoceanographic
conditions is complicated by an insufficient understanding of the mechanisms controlling …