Determination of rhenium in marine waters and sediments by graphite furnace atomic absorption spectrometry

Koide, Minoru; Hodge, Vernon F.; Yang, Jae Sam; Goldberg, Edward D.

doi:10.1021/ac00141a014

Cited by 41 publications

(8 citation statements)

References 17 publications

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“…Despite the incorporation of Mo into nitrogenase (Kim and Rees, 1992;Einsle et al, 2002) and the bio-accumulation of Re in certain seaweeds (Fukai and Meinke, 1962;Yang, 1991) neither element is a major nutrient and both are conservative in seawater (Morris, 1975;Collier, 1985;Anbar et al, 1992;Colodner et al, 1993a;Tuit, 2003). The seawater concentrations of Mo and Re are 104 nmol kg À1 and 40 pmol kg À1 , respectively (Morris, 1975;Collier, 1985;Koide et al, 1987;Anbar et al, 1992;Colodner et al, 1993aColodner et al, , 1995.…”

Section: Background: Surface Cycling Of Molybdenum and Rheniummentioning

confidence: 99%

Re-assessing the surface cycling of molybdenum and rhenium

Miller

Peucker‐Ehrenbrink

Walker

et al. 2011

Geochimica et Cosmochimica Acta

258

174

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Section: Background: Surface Cycling Of Molybdenum and Rheniummentioning

confidence: 99%

Re-assessing the surface cycling of molybdenum and rhenium

Miller

Peucker‐Ehrenbrink

Walker

et al. 2011

Geochimica et Cosmochimica Acta

258

174

View full text Add to dashboard Cite

“…Despite the incorporation of Mo into nitrogenase (Anbar and Knoll, 2002) and the bio-accumulation of Re in certain seaweeds (Fukai and Meinke, 1962;Yang, 1991) both elements are considered to be conservative in seawater, and do not exhibit "nutrient-like" behavior (Morris, 1975;Collier, 1985;Anbar et al, 1992;Colodner et al, 1993a;Tuit, 2003). The concentration of Mo in seawater is 107 nM; that of Re is 40 pmol kg −1 (Morris, 1975;Collier, 1985;Koide et al, 1987;Anbar et al, 1992;Colodner et al, 1993aColodner et al, , 1995. Assuming an average seawater density of 1.028 g cm −3 -after Montgomery (1958); Millero and Poisson (1981) -the resulting Mo and Re concentrations are 104 nmol kg −1 and 41 pM.…”

Section: −mentioning

confidence: 99%

Surface-cycling of rhenium and its isotopes

Miller¹

2009

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The application of elemental and isotopic metal palaeoredox tracers to the geologic past rests on an understanding of modern metal cycles. This study reevaluates the surface-cycling of Mo and Re in near-surface reservoirs. Revised river averages of Mo and Re are 1.8-and 7.9-fold larger than previous estimates. The river concentrations of 8.0 nmol Mo kg −1 and 11.2 pmol Re kg −1 (pre-anthropogenic), result in shorter seawater response times of 4.4 × 10 5 yr (τ Mo ) and 1.3 × 10 5 yr (τ Re pre-anthropogenic). These metals, especially Re, are more sensitive to changing source and sink fluxes than previously thought.Evaluation of Mo and Re concentrations in high temperature fluids from the Manus Basin indicate that Re is essentially absent from the hydrothermal end member and Mo is present at concentrations considerably lower than ambient seawater. The sink fluxes represented by hydrothermal circulation are negligible in comparison to the revised river source fluxes.Anthropogenic contributions to the Re flux to seawater are seen in the high concentrations of certain impacted water samples such as those associated with mining sites. It may also be seen in a significant, variable, Re enrichment feature in the Hudson River estuary. This Re enrichment feature is not the result of estuarine mixing or the remobilization of sediment-hosted Re. On the basis of a Re -SO 2− 4 correlation we are able to quantify and correct for the anthropogenic Re, which corresponds to ∼33% of the modern river average.This study documents the development of an analytical method for stable Re isotopes. Though complicated by analyte requirements and 187 Re -187 Os decay, Re isotope measurements have a reproducibility of ±0.05 for analyte concentrations of 20 ng Re mL −1 . Total Re isotopic variability to date is 0.9 . This includes 0.3 across five commercially available Re products, and 0.5 across a black shale weathering profile. δ 187 Re variability across the weathering profile was systematic with the most weathered samples showing the most significant 187 Re depletions. The 3 Re isotopic weathering profile is well described by both two-component mixing and Rayleigh fractionation. There are currently insufficient data to discriminate between the two models.

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“…Re behaves conservatively in oceans [46,53,54] and is influenced by redox environments. The average residence time of Re in the ocean is 7:5 × 10 5 a.…”

Section: Geofluidsmentioning

confidence: 99%

Hydrochemical Characteristics and Evolution Mode of Cold Seeps in the Qiongdongnan Basin, South China Sea

et al. 2020

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Submarine cold seeps have recently attracted significant attention and are among the most effective indicators of gas hydrate in the oceans. In this study, remotely operated vehicle (ROV) observations, seismic profiles, core sediments, bottom seawater, and fluid vented from cold seeps in the deep-water Qiongdongnan Basin were used to investigate the origin and evolution of cold seeps and their relationships with gas hydrate. At stations A, B, and C, inactive cold seeps with dead clams, cold seep leakage with live clams, and active cold seeps with a rich mussel presence, respectively, were observed. The salinity and Na+ and Cl- concentrations of the cold seeps were different from those of typical seawater owing to gas hydrate formation and decomposition and fluid originating from various depths. The main ion concentrations of the bottom seawater at stations B and C were higher than those at station A, indicating the substantial effects of low-salinity cold seep fluids from gas hydrate decomposition. The Na+-Cl-, K+-Cl-, Mg2+-Cl-, and Ca2+-Cl- diagrams and rare earth element distribution curves of the water samples were strongly affected by seawater. The concentrations of trace elements and their ratios to Cl- in the bottom seawater were high at the stations with cold seeps, suggesting the mixing of other fluids rich in those elements. Biochemical reactions may also have caused the chemical anomalies. Samples of HM-ROV-1 indicated a greater effect of upward cold seep fluids with higher B/Cl-, Sr/Cl-, and Ba/Cl- values. Moreover, the Re/Cl- value varied between fluid vents, possibly due to differences in Re precipitation strength. Differences in cold seep intensity are also believed to occur between areas. The cold seep fluxes changed from large to small before finally disappearing, showing a close connection with gas hydrate formation and decomposition, and influenced the local topography and ecosystems.

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Determination of rhenium in marine waters and sediments by graphite furnace atomic absorption spectrometry

Abstract: The use of brand names is for identification purposes only and does not represent endorsement by the U.S. Geological Survey.

Cited by 41 publications

References 17 publications

Re-assessing the surface cycling of molybdenum and rhenium

Re-assessing the surface cycling of molybdenum and rhenium

Surface-cycling of rhenium and its isotopes

Hydrochemical Characteristics and Evolution Mode of Cold Seeps in the Qiongdongnan Basin, South China Sea

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