FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W4206160671> ?p ?o ?g. }

• W4206160671 endingPage "169" @default.
• W4206160671 startingPage "143" @default.
• W4206160671 abstract "The neodymium isotopic composition (εNd) of seawater is one of the most important geochemical tracers to investigate water mass provenance, which can also serve as a proxy to reconstruct past variations in ocean circulation. Nd isotopes have recently also been used to reconstruct past circulation changes in the Mediterranean Sea on different time scales. However, the modern seawater εNd dataset for the Mediterranean Sea, which these reconstructions are based on, is limited and up to now only 160 isotopic measurements are available for the entire basin. The lack of present-day data also limits our understanding of the processes controlling the Nd cycle and Nd isotopic distribution in this semi-enclosed basin. Here we present new εNd data from 24 depth profiles covering all Mediterranean sub-basins, which significantly increases the available dataset in the Mediterranean Sea. The main goal of our study is to better characterize the relationship between the dissolved Nd isotope distributions and major water masses in the Mediterranean Sea and to investigate the impact and relative importance of local non-conservative modifications, which include input of riverine particles and waters, aeolian-derived material and exchange with the sediments at continental margins. This comprehensive εNd dataset reveals a clear εNd – salinity correlation and a zonal and depth gradient with εNd systematically increasing from the western to the eastern Mediterranean basin (average εNd = −8.8 ± 0.8 and −6.7 ± 1 for the entire water column, respectively), reflecting the large-scale basin circulation. We have evaluated the conservative εNd behaviour in the Mediterranean Sea and quantified the non-conservative components of the εNd signatures by applying an Optimum Multiparameter (OMP) analysis and results from the Parametric Optimum Multiparameter (POMP) analysis of Jullion et al. (2017). The results of the present study combined with previously published Nd isotope values indicate that dissolved εNd behaves overall conservatively in the open Mediterranean Sea and show that its water masses are clearly distinguishable by their Nd isotope signature. However, misfits between measured and OMP- and POMP-derived εNd values exist in almost all sub-basins, especially in the eastern Levantine Basin and Alboran Sea at intermediate-deep depths, which can be explained by the influence of detrital lithogenic εNd signatures through interaction with highly radiogenic Nile sourced volcanic fractions and unradiogenic sediments, respectively. The radiogenic signature acquired in the eastern Levantine Basin is carried by the Levantine Intermediate Water and transferred conservatively to the entire Mediterranean at intermediate depths. Our measured εNd values and OMP- and POMP-derived results indicate that non-conservative contributions originating from sediment sources are then propagated by water mass circulation (with distinct preformed εNd) along the Mediterranean Sea through advection and conservative mixing. Mediterranean εNd effectively traces the mixing between the different water masses in this semi-enclosed basin and is a suitable water mass tracer." @default.
• W4206160671 created "2022-01-25" @default.
• W4206160671 creator A5001784726 @default.
• W4206160671 creator A5002064182 @default.
• W4206160671 creator A5009172948 @default.
• W4206160671 creator A5015463415 @default.
• W4206160671 creator A5033598915 @default.
• W4206160671 creator A5034314552 @default.
• W4206160671 creator A5045457888 @default.
• W4206160671 creator A5074548157 @default.
• W4206160671 creator A5080989824 @default.
• W4206160671 creator A5082176636 @default.
• W4206160671 creator A5082799330 @default.
• W4206160671 creator A5091635969 @default.
• W4206160671 date "2022-04-01" @default.
• W4206160671 modified "2023-09-25" @default.
• W4206160671 title "Dissolved neodymium isotopes in the Mediterranean Sea" @default.
• W4206160671 cites W1489917183 @default.
• W4206160671 cites W1583605648 @default.
• W4206160671 cites W1665947315 @default.
• W4206160671 cites W1860222927 @default.
• W4206160671 cites W1953195621 @default.
• W4206160671 cites W1965807239 @default.
• W4206160671 cites W1966143286 @default.
• W4206160671 cites W1967456631 @default.
• W4206160671 cites W1971932043 @default.
• W4206160671 cites W1972957344 @default.
• W4206160671 cites W1978952054 @default.
• W4206160671 cites W1987276983 @default.
• W4206160671 cites W1987375343 @default.
• W4206160671 cites W1995172428 @default.
• W4206160671 cites W1996055672 @default.
• W4206160671 cites W1997313056 @default.
• W4206160671 cites W2001990711 @default.
• W4206160671 cites W2003534224 @default.
• W4206160671 cites W2006481975 @default.
• W4206160671 cites W2010714875 @default.
• W4206160671 cites W2013541745 @default.
• W4206160671 cites W2015897045 @default.
• W4206160671 cites W2019410083 @default.
• W4206160671 cites W2023118744 @default.
• W4206160671 cites W2028007282 @default.
• W4206160671 cites W2031095070 @default.
• W4206160671 cites W2031887417 @default.
• W4206160671 cites W2032132733 @default.
• W4206160671 cites W2035231167 @default.
• W4206160671 cites W2038739260 @default.
• W4206160671 cites W2040778064 @default.
• W4206160671 cites W2042699471 @default.
• W4206160671 cites W2043241265 @default.
• W4206160671 cites W2046016545 @default.
• W4206160671 cites W2047871942 @default.
• W4206160671 cites W2050319095 @default.
• W4206160671 cites W2055433880 @default.
• W4206160671 cites W2058266905 @default.
• W4206160671 cites W2060342943 @default.
• W4206160671 cites W2063728128 @default.
• W4206160671 cites W2064559463 @default.
• W4206160671 cites W2066713372 @default.
• W4206160671 cites W2066889161 @default.
• W4206160671 cites W2067455580 @default.
• W4206160671 cites W2071071064 @default.
• W4206160671 cites W2073451667 @default.
• W4206160671 cites W2075928103 @default.
• W4206160671 cites W2076319956 @default.
• W4206160671 cites W2076566162 @default.
• W4206160671 cites W2078192666 @default.
• W4206160671 cites W2086764528 @default.
• W4206160671 cites W2087195094 @default.
• W4206160671 cites W2088223235 @default.
• W4206160671 cites W2089715838 @default.
• W4206160671 cites W2095320098 @default.
• W4206160671 cites W2101057003 @default.
• W4206160671 cites W2103838658 @default.
• W4206160671 cites W2110305043 @default.
• W4206160671 cites W2111737708 @default.
• W4206160671 cites W2124435412 @default.
• W4206160671 cites W2126233408 @default.
• W4206160671 cites W2129240824 @default.
• W4206160671 cites W2144613562 @default.
• W4206160671 cites W2152217615 @default.
• W4206160671 cites W2153421462 @default.
• W4206160671 cites W2160971919 @default.
• W4206160671 cites W2164456278 @default.
• W4206160671 cites W2171435093 @default.
• W4206160671 cites W2171483221 @default.
• W4206160671 cites W2231657165 @default.
• W4206160671 cites W2248237575 @default.
• W4206160671 cites W2331581156 @default.
• W4206160671 cites W2395738984 @default.
• W4206160671 cites W2397540863 @default.
• W4206160671 cites W2430008798 @default.
• W4206160671 cites W2461177776 @default.
• W4206160671 cites W2511400251 @default.
• W4206160671 cites W2598965167 @default.
• W4206160671 cites W2604479735 @default.
• W4206160671 cites W2626186332 @default.
• W4206160671 cites W2736514348 @default.

• next