Natural waters universally show fractionation of uranium series (U-series) parent–daughter pairs, with the disequilibrium between U and U (U)/(U) commonly used as a tracer of groundwater flow. Because speleothems provide a temporal record of geochemical variations in groundwater precipitating calcite, (U)/(U) variations in speleothems provide a unique method of investigating water–rock interact...

Sedimentary phosphorus sPd composition was investigated in Effingham Inlet, a fjord located on the west coast of Vancouver Island in Barkley Sound. Solid-state P nuclear magnetic resonance sNMRd spectroscopy was applied to demineralized sediment samples from sites overlain by oxic and anoxic bottom waters. The two sites were similar in terms of key diagenetic parameters, including the mass accu...

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 show variations in oxidation state and solubility as a function of the redox status of the depositional environment. Redox-sensitive trace metals tend to be more soluble under oxidizing conditions and less solubl...

A reduced order numerical computational method based on flux tube modelling is proposed for the rapid electromagnetic analysis and design of electromechanical energy transducers using an example of a synchronous reluctance machine. The flux tube method is applied to establish flux linkage functions facilitating fast and accurate inductance estimation. The practical advantage is that the approac...