% IMPORTANT: The following is UTF-8 encoded.  This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.

@ARTICLE{Sowakiewicz:825733,
      author       = {Słowakiewicz, Mirosław and Tucker, Maurice E. and
                      Hindenberg, Katja and Mawson, Mike and Idiz, Erdem F. and
                      Pancost, Richard D.},
      title        = {{N}earshore euxinia in the photic zone of an ancient sea:
                      {P}art {II} – {T}he bigger picture and implications for
                      understanding ocean anoxia},
      journal      = {Palaeogeography, palaeoclimatology, palaeoecology},
      volume       = {461},
      issn         = {0031-0182},
      address      = {Amsterdam [u.a.]},
      publisher    = {Elsevier Science},
      reportid     = {FZJ-2017-00045},
      pages        = {432 - 448},
      year         = {2016},
      abstract     = {Biomarker, palaeontological and isotopic evidence suggests
                      that the Late Permian carbonate seas, i.e. the Northern
                      (NPB) and Southern (SPB) Permian basins of northern Pangea,
                      were characterized by significant spatial and temporal
                      variations in the palaeowater-column redox state. This is
                      particularly the case with regard to the deposition of the
                      Lopingian Zechstein cycle 2 carbonate rocks. A shelf to
                      basin reconstruction of environmental conditions was
                      achieved by analysing nearly 400 core samples from 49 wells.
                      This allowed an evaluation of the spatial variations in
                      facies and broad oceanographic conditions at the basin
                      scale. Specifically, in the lower slope and shallow-basin
                      facies of the northern margin of the SPB (present-day
                      northern Poland and eastern Germany), highly variable
                      concentrations of the green sulphur bacterial biomarkers
                      chlorobactane and isorenieratane (and their likely
                      degradation products, C15 to C31 2,3,6-aryl isoprenoids,
                      indicative of photic zone euxinia) and homohopane indices
                      (indicative of anoxia), combined with the presence of a
                      benthic fauna and bioturbation, indicate a variable but
                      occasionally anoxic/euxinic water column. Locally in
                      lagoonal facies in the northern and southern margin of the
                      SPB, euxinic conditions also developed but these were likely
                      associated with localised conditions or benthic production
                      in association with microbialites. The presence of
                      gammacerane in the eastern SPB (south-eastern Germany and
                      eastern Poland) suggests elevated salinities there,
                      compatible with the restricted configuration of the basin.
                      However, a lack of these signatures in basinal settings of
                      the eastern SPB indicates that strongly reducing conditions
                      were restricted to the lower slope and shallow-basin
                      locations and restricted lagoons, and were not developed in
                      the basin centre. Moreover, this anoxia/euxinia in marginal
                      settings is restricted to the north-eastern part of the SPB.
                      The south-eastern part of the SPB (SE Poland), in contrast,
                      is devoid of evidence for PZE. The southern margin of the
                      SPB is also characterized by generally oxic-suboxic
                      conditions, with local anoxia limited to more restricted
                      embayments, and elevated salinities limited to restricted
                      oxic-anoxic lagoons. In the western SPB (NE England and
                      adjacent offshore) and the NPB (Outer Moray Firth, offshore
                      Scotland) the water columns were oxic-suboxic. Overall, it
                      appears that high but episodic primary bioproductivity of
                      organic matter was concentrated on (or even limited to) the
                      lower slopes of the SPB's north-eastern margin and the
                      restricted lagoons and shallow basin of its southern margin,
                      leading to the formation of source rocks for petroleum in
                      these areas. In addition, the temporal and geographical
                      restriction of anoxia appears to have prevented the
                      accumulation of large and more widespread quantities of
                      organic matter; in fact TOC contents exhibit a poor
                      correlation with ecological and anoxia indicators.
                      Crucially, this work confirms that the strong evidence for
                      PZE observed in shelf and lower slope/shallow-basin facies
                      of the north-eastern SPB need not be associated with
                      widespread, basin-scale anoxia; this conclusion has
                      implications for organic matter burial, carbon cycling and
                      biotic crises during other times in Earth history.},
      cin          = {IBG-3},
      ddc          = {550},
      cid          = {I:(DE-Juel1)IBG-3-20101118},
      pnm          = {255 - Terrestrial Systems: From Observation to Prediction
                      (POF3-255)},
      pid          = {G:(DE-HGF)POF3-255},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000385599900033},
      doi          = {10.1016/j.palaeo.2016.09.003},
      url          = {https://juser.fz-juelich.de/record/825733},
}