Publisher Summary This chapter summarizes the recent applications of U-series nuclides to
study weathering and river transport. The chapter focuses on the determination of time …

Studies from the subtropical western and eastern Atlantic Ocean, using the 231Pa/230Th
ratio as a kinematic proxy for deep water circulation, provided compelling evidence for a …

Marine particles play key roles in the cycling of most elements in the ocean. Here we present
full water column sections of size-fractionated (1–51 μm;> 51 μm) concentrations of …

Trace elements serve important roles as regulators of ocean processes including marine
ecosystem dynamics and carbon cycling. The role of iron, for instance, is well known as a …

Since the 1960s, thorium isotopes occupy a special place in the oceanographer's toolbox as
tracers for determining rates and mechanisms of oceanic scavenging, particle dynamics …

A first study from the subtropical western Atlantic, using 231Pa/230Th ratios as a kinematic
proxy for deep water circulation, provided compelling evidence for a strong link between …

Publisher Summary The steady improvement in the understanding of the marine
biogeochemical cycles for many elements is intimately linked to the understanding of the …

The natural radionuclides 231 Pa and 230 Th are incorporated into the marine sediment
record by scavenging, or adsorption to various particle types, via chemical reactions that are …

Ocean circulation may have undergone reductions and reinvigorations in the past closely
tied to regional climate changes. Measurements of 231Pa/230Th ratios in a sediment core …

Soil and sediment solid/liquid partition coefficients (Kd) are used to indicate the relative
mobility of radionuclides and elements of concern from nuclear fuel waste, as well as from …