FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2082800178> ?p ?o ?g. }

• W2082800178 endingPage "157" @default.
• W2082800178 startingPage "133" @default.
• W2082800178 abstract "We describe transition metal behaviour during early diagenesis in sediments collected along a transect across the eastern flank of the East Pacific Rise (EPR) at 14°S overlying crust with magnetic ages of 0.36 Ma to 4.6 Ma. The sediments are lithologically simple and consist of biogenic carbonate, hydrothermal plume precipitates and minor basaltic debris. Sedimentation rates range from ∼1 cm/ka in the near-axis region (0.36 Ma) to ∼0.1–0.2 cm/ka across the young ridge flank (by 1.9 Ma, or within ∼142 km from axis). Redox indicators (porewater Mn(II)aq and solid phase Mo/Mn ratios) indicate fully oxic conditions in near-axis sediments, changing to mildly suboxic conditions across the ridge flank. Sequential extraction analysis of sediments from the 0.36 Ma site indicates that oxic alteration of Fe oxyhydroxides is dominated by transformation of ferrihydrite to goethite, implying that alteration occurs via dissolution followed by nucleation and precipitation. The extent of alteration (amorphous Fe/total plume-derived Fe) ranges from 0.3 to 0.8, and the time to half conversion is on the order of ∼100 ka. V associated with plume-derived ferrihydrite is strongly discriminated against during alteration to goethite and the distribution coefficient (DV = (V/Fe)goethite/(V/Fe)dissolved) is in the range 0.45–0.59. Cu, Zn and Ni are delivered to the sediment in association with both Fe oxyhydroxides and Mn oxides, where ∼70% of Cu and Zn and ∼10% of Ni are associated with Fe oxyhydroxides. The Fe-adsorbed Cu and Zn are incorporated quantitatively into the lattice structure of goethite during alteration. The Fe-associated Ni most likely represents Ni co-precipitated as Ni–Fe ferrihydrite and incorporated into goethite during alteration. Co is associated only with Mn oxides. The oxic alteration of hydrothermal Fe oxyhydroxides therefore represents a relatively permanent sink (where goethite dissolution is a prerequisite for metal release) for a maximum of ∼70% of plume-derived Cu and Zn, ∼50% of V, ∼10% of Ni and 0% of Co. In oxic sediments, the remaining plume-derived metals are retained in association with amorphous Fe oxyhydroxides and Mn oxides, although this fraction is highly susceptible to diagenetic remobilization under suboxic conditions." @default.
• W2082800178 created "2016-06-24" @default.
• W2082800178 creator A5036879257 @default.
• W2082800178 creator A5044906461 @default.
• W2082800178 date "2006-06-01" @default.
• W2082800178 modified "2023-09-27" @default.
• W2082800178 title "The impact of oxic alteration on plume-derived transition metals in ridge flank sediments from the East Pacific Rise" @default.
• W2082800178 cites W1971431820 @default.
• W2082800178 cites W1971708169 @default.
• W2082800178 cites W1972643755 @default.
• W2082800178 cites W1974846110 @default.
• W2082800178 cites W1975467093 @default.
• W2082800178 cites W1977312301 @default.
• W2082800178 cites W1983127264 @default.
• W2082800178 cites W1985221733 @default.
• W2082800178 cites W1985747057 @default.
• W2082800178 cites W1985902803 @default.
• W2082800178 cites W1987816523 @default.
• W2082800178 cites W1988863867 @default.
• W2082800178 cites W1990602614 @default.
• W2082800178 cites W1998485237 @default.
• W2082800178 cites W1999275314 @default.
• W2082800178 cites W2002133852 @default.
• W2082800178 cites W2002240909 @default.
• W2082800178 cites W2003091549 @default.
• W2082800178 cites W2007818656 @default.
• W2082800178 cites W2008755116 @default.
• W2082800178 cites W2013648174 @default.
• W2082800178 cites W2016246567 @default.
• W2082800178 cites W2018142035 @default.
• W2082800178 cites W2018713720 @default.
• W2082800178 cites W2024900433 @default.
• W2082800178 cites W2026282088 @default.
• W2082800178 cites W2028446963 @default.
• W2082800178 cites W2030534042 @default.
• W2082800178 cites W2031431776 @default.
• W2082800178 cites W2031963639 @default.
• W2082800178 cites W2034474737 @default.
• W2082800178 cites W2037689872 @default.
• W2082800178 cites W2042811947 @default.
• W2082800178 cites W2043668123 @default.
• W2082800178 cites W2046999093 @default.
• W2082800178 cites W2047113589 @default.
• W2082800178 cites W2047231721 @default.
• W2082800178 cites W2049873471 @default.
• W2082800178 cites W2055385703 @default.
• W2082800178 cites W2055862951 @default.
• W2082800178 cites W2056360069 @default.
• W2082800178 cites W2056807430 @default.
• W2082800178 cites W2057697588 @default.
• W2082800178 cites W2060169581 @default.
• W2082800178 cites W2060718840 @default.
• W2082800178 cites W2067177896 @default.
• W2082800178 cites W2068263664 @default.
• W2082800178 cites W2068480715 @default.
• W2082800178 cites W2073431828 @default.
• W2082800178 cites W2074361563 @default.
• W2082800178 cites W2075582650 @default.
• W2082800178 cites W2077753024 @default.
• W2082800178 cites W2077794133 @default.
• W2082800178 cites W2082135285 @default.
• W2082800178 cites W2082362203 @default.
• W2082800178 cites W2085767385 @default.
• W2082800178 cites W2086918142 @default.
• W2082800178 cites W2087438337 @default.
• W2082800178 cites W2089809744 @default.
• W2082800178 cites W2090655264 @default.
• W2082800178 cites W2091819788 @default.
• W2082800178 cites W2094142381 @default.
• W2082800178 cites W2096962492 @default.
• W2082800178 cites W2098107208 @default.
• W2082800178 cites W2109952707 @default.
• W2082800178 cites W2113294249 @default.
• W2082800178 cites W2129392281 @default.
• W2082800178 cites W2130008472 @default.
• W2082800178 cites W2142811243 @default.
• W2082800178 cites W2144283465 @default.
• W2082800178 cites W2159049505 @default.
• W2082800178 cites W2164333865 @default.
• W2082800178 cites W2167166182 @default.
• W2082800178 cites W2167758964 @default.
• W2082800178 cites W2168445832 @default.
• W2082800178 cites W2342371782 @default.
• W2082800178 cites W2473979272 @default.
• W2082800178 cites W2502783958 @default.
• W2082800178 doi "https://doi.org/10.1016/j.margeo.2006.03.007" @default.
• W2082800178 hasPublicationYear "2006" @default.
• W2082800178 type Work @default.
• W2082800178 sameAs 2082800178 @default.
• W2082800178 citedByCount "19" @default.
• W2082800178 countsByYear W20828001782013 @default.
• W2082800178 countsByYear W20828001782016 @default.
• W2082800178 countsByYear W20828001782017 @default.
• W2082800178 countsByYear W20828001782018 @default.
• W2082800178 countsByYear W20828001782019 @default.
• W2082800178 countsByYear W20828001782020 @default.
• W2082800178 countsByYear W20828001782021 @default.
• W2082800178 crossrefType "journal-article" @default.

• next