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• W2995410970 abstract "Glacial meltwater is an important source of bioessential trace elements to high latitude oceans. Upon delivery to coastal waters, glacially sourced particulate trace elements are processed during early diagenesis in sediments and may be sequestered or recycled back to the water column depending on local biogeochemical conditions. In the glaciated fjords of Svalbard, large amounts of reactive Fe and Mn (oxyhydr)oxides are delivered to the sediment by glacial discharge, resulting in pronounced Fe and Mn cycling concurrent with microbial sulfate reduction. In order to investigate the diagenetic cycling of selected trace elements (As, Co, Cu, Mo, Ni, and U) in this system, we collected sediment cores from two Svalbard fjords, Van Keulenfjorden and Van Mijenfjorden, in a transect along the head-to-mouth fjord axis and analyzed aqueous and solid phase geochemistry with respect to trace elements, sulfur, and carbon along with sulfate reduction rates. We found that Co and Ni associate with Fe and Mn (oxyhydr)oxides and enter the pore water upon reductive metal oxide dissolution. Copper is enriched in the solid phase where sulfate reduction rates are high, likely due to reactions with H2S and the formation of sulfide minerals. Uranium accumulates in the solid phase likely following reduction by both Fe- and sulfate-reducing bacteria, while Mo adsorbs to Fe and Mn (oxyhydr)oxides in the surface sediment and is removed from the pore water at depth where sulfidization makes it particle-reactive. Arsenic is tightly coupled to Fe redox cycling and its partitioning between solid and dissolved phases is influenced by competition with FeS for adsorption sites on crystalline Fe oxides. Differences in trace element cycling between the two fjords suggest delivery of varying amount and composition of tidewater glacier (Van Keulenfjorden) and meltwater stream (Van Mijenfjorden) material, likely related to oxidative processes occurring in meltwater streams. This processing produces a partially weathered, more reactive sediment that is subject to stronger redox cycling of Fe, Mn, S, and associated trace elements upon delivery to Van Mijenfjorden. With climate warming, the patterns of trace element cycling observed in Van Mijenfjorden may also become more prevalent in other Svalbard fjords as tidewater glaciers retreat into meltwater stream valleys." @default.
• W2995410970 created "2019-12-26" @default.
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• W2995410970 date "2020-02-01" @default.
• W2995410970 modified "2023-10-14" @default.
• W2995410970 title "Glacial controls on redox-sensitive trace element cycling in Arctic fjord sediments (Spitsbergen, Svalbard)" @default.
• W2995410970 cites W131781866 @default.
• W2995410970 cites W1503386610 @default.
• W2995410970 cites W1525830075 @default.
• W2995410970 cites W1586239332 @default.
• W2995410970 cites W1611928422 @default.
• W2995410970 cites W1736382717 @default.
• W2995410970 cites W1963985336 @default.
• W2995410970 cites W1964598401 @default.
• W2995410970 cites W1966688147 @default.
• W2995410970 cites W1968815940 @default.
• W2995410970 cites W1969270826 @default.
• W2995410970 cites W1969494113 @default.
• W2995410970 cites W1969609710 @default.
• W2995410970 cites W1972574970 @default.
• W2995410970 cites W1973962940 @default.
• W2995410970 cites W1974796396 @default.
• W2995410970 cites W1975589906 @default.
• W2995410970 cites W1981430608 @default.
• W2995410970 cites W1983399196 @default.
• W2995410970 cites W1983589967 @default.
• W2995410970 cites W1983951426 @default.
• W2995410970 cites W1984313307 @default.
• W2995410970 cites W1987261718 @default.
• W2995410970 cites W1987610679 @default.
• W2995410970 cites W1988461576 @default.
• W2995410970 cites W1988960405 @default.
• W2995410970 cites W1990538052 @default.
• W2995410970 cites W1991965571 @default.
• W2995410970 cites W1994318446 @default.
• W2995410970 cites W1995182573 @default.
• W2995410970 cites W1995737122 @default.
• W2995410970 cites W1996902491 @default.
• W2995410970 cites W1996958742 @default.
• W2995410970 cites W1999212097 @default.
• W2995410970 cites W2000419400 @default.
• W2995410970 cites W2000967738 @default.
• W2995410970 cites W2001156023 @default.
• W2995410970 cites W2001682399 @default.
• W2995410970 cites W2002240909 @default.
• W2995410970 cites W2002841870 @default.
• W2995410970 cites W2003186440 @default.
• W2995410970 cites W2005228297 @default.
• W2995410970 cites W2007181472 @default.
• W2995410970 cites W2008772238 @default.
• W2995410970 cites W2013398329 @default.
• W2995410970 cites W2014766704 @default.
• W2995410970 cites W2015008159 @default.
• W2995410970 cites W2015740476 @default.
• W2995410970 cites W2017522035 @default.
• W2995410970 cites W2019744506 @default.
• W2995410970 cites W2020080729 @default.
• W2995410970 cites W2020722679 @default.
• W2995410970 cites W2020848059 @default.
• W2995410970 cites W2021373240 @default.
• W2995410970 cites W2022872047 @default.
• W2995410970 cites W2023068580 @default.
• W2995410970 cites W2023419609 @default.
• W2995410970 cites W2025163281 @default.
• W2995410970 cites W2026829202 @default.
• W2995410970 cites W2027494351 @default.
• W2995410970 cites W2027901292 @default.
• W2995410970 cites W2028560040 @default.
• W2995410970 cites W2029048327 @default.
• W2995410970 cites W2033271069 @default.
• W2995410970 cites W2033294326 @default.
• W2995410970 cites W2033338965 @default.
• W2995410970 cites W2033704053 @default.
• W2995410970 cites W2034557601 @default.
• W2995410970 cites W2035041372 @default.
• W2995410970 cites W2035193662 @default.
• W2995410970 cites W2035398133 @default.
• W2995410970 cites W2035708421 @default.
• W2995410970 cites W2036501693 @default.
• W2995410970 cites W2036659957 @default.
• W2995410970 cites W2036923994 @default.
• W2995410970 cites W2038281478 @default.
• W2995410970 cites W2042505381 @default.
• W2995410970 cites W2043506634 @default.
• W2995410970 cites W2043668123 @default.
• W2995410970 cites W2044577729 @default.
• W2995410970 cites W2044781725 @default.
• W2995410970 cites W2045226822 @default.
• W2995410970 cites W2045312715 @default.

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