<p>Spatial distribution of different types of <b>marine sediments in the Southern Ocean</b>
(modified from Diekmann, 2007). The greenish area south of the Polar Front shows the extension of the subpolar opal belt where sediments have a significant portion of silicous plankton frustules. Sediments near Antarctica mainly consist of glacial debris in any grain size eroded and delivered by the Antarctic Ice.
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<ul><li>(1) Calcarous ooze/mud,</li>
<li>(2/3) biosiliceous/mud,</li>
<li>(4) coarse lithogenic sediments,</li>
<li>(5/6) lithogenic sand/mud.</li></ul>
Diekmann, B./AWI
CC BY 3.0
<ul><li>Diekmann, B. (2007). Sedimentary patterns in the late Quaternary Southern Ocean, Deep-Sea Res. II, 54, 2350-2366, <a href="https://en.wikipedia.org/wiki/Digital_object_identifier" class="extiw" title="w:Digital object identifier">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1016%2Fj.dsr2.2007.07.025">10.1016/j.dsr2.2007.07.025</a></li>
<li>Grobe, H., Diekmann, B., Hillenbrand, C.-D.(2009). The memory of the Polar Oceans, In: Hempel, G. (ed) Biology of Polar Oceans, <a rel="nofollow" class="external text" href="http://hdl.handle.net/10013/epic.33599.d001">hdl:10013/epic.33599.d001</a>, pdf 0.4 MB.</li></ul>