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<front>
<journal-meta>
<journal-id journal-id-type="publisher">CPD</journal-id>
<journal-title-group>
<journal-title>Climate of the Past Discussions</journal-title>
<abbrev-journal-title abbrev-type="publisher">CPD</abbrev-journal-title>
</journal-title-group>
<issn pub-type="epub">1814-9359</issn>
<publisher><publisher-name>Copernicus GmbH</publisher-name>
<publisher-loc>Göttingen, Germany</publisher-loc>
</publisher>
</journal-meta>
<article-meta>
<article-id pub-id-type="doi">10.5194/cpd-8-1169-2012</article-id>
<title-group>
<article-title>A 250 ka oxygen isotope record from diatoms at Lake El&apos;gygytgyn, far east Russian Arctic</article-title>
</title-group>
<contrib-group><contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Chapligin</surname>
<given-names>B.</given-names>
</name>
<xref ref-type="aff" rid="aff1">
<sup>1</sup>
</xref>
</contrib>
<contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Meyer</surname>
<given-names>H.</given-names>
</name>
<xref ref-type="aff" rid="aff1">
<sup>1</sup>
</xref>
</contrib>
<contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Swann</surname>
<given-names>G. E. A.</given-names>
</name>
<xref ref-type="aff" rid="aff2">
<sup>2</sup>
</xref>
</contrib>
<contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Meyer-Jacob</surname>
<given-names>C.</given-names>
</name>
<xref ref-type="aff" rid="aff3">
<sup>3</sup>
</xref>
</contrib>
<contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Hubberten</surname>
<given-names>H.-W.</given-names>
</name>
<xref ref-type="aff" rid="aff1">
<sup>1</sup>
</xref>
</contrib>
</contrib-group><aff id="aff1">
<label>1</label>
<addr-line>Alfred Wegener Institute for Polar and Marine Research, Research Unit Potsdam, Telegrafenberg A43, 14473 Potsdam, Germany</addr-line>
</aff>
<aff id="aff2">
<label>2</label>
<addr-line>School of Geography, University of Nottingham, University Park, Nottingham, NG7 2RD, UK</addr-line>
</aff>
<aff id="aff3">
<label>3</label>
<addr-line>Department of Ecology and Environmental Science, Umeå University, 90187 Umeå, Sweden</addr-line>
</aff>
<pub-date pub-type="epub">
<day>11</day>
<month>04</month>
<year>2012</year>
</pub-date>
<volume>8</volume>
<issue>2</issue>
<fpage>1169</fpage>
<lpage>1207</lpage>
<permissions>
<license xlink:type="simple">
<license-p>This is an open-access article ditributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.</license-p>
</license>
</permissions>
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<self-uri xlink:href="http://www.clim-past-discuss.net/8/1169/2012/cpd-8-1169-2012.pdf">The full text article is available as a PDF file from http://www.clim-past-discuss.net/8/1169/2012/cpd-8-1169-2012.pdf</self-uri>
<abstract>
<p>In 2003 sediment core Lz1024 was drilled at Lake El&apos;gygytgyn, far east
Russian Arctic, in an area of the Northern Hemisphere which has not been
glaciated for the last 3.6 Ma. Biogenic silica was used for analysing the
oxygen isotope composition (&amp;delta;&lt;sup&gt;18&lt;/sup&gt;O&lt;sub&gt;diatom&lt;/sub&gt;) in the upper
13 m long section dating back about 250 ka with samples dominated by one
taxa in the &lt;10 μm fraction (&lt;i&gt;Cyclotella ocellata&lt;/i&gt;).
Downcore variations in &amp;delta;&lt;sup&gt;18&lt;/sup&gt;O values show that glacial-interglacial
cycles are present throughout the core and &amp;delta;&lt;sup&gt;18&lt;/sup&gt;O&lt;sub&gt;diatom&lt;/sub&gt;
values are mainly controlled by &amp;delta;&lt;sup&gt;18&lt;/sup&gt;O&lt;sub&gt;precipitation&lt;/sub&gt;.
Changes reflect the Holocene Thermal Maximum, the Last Glacial Maximum and
the interglacial periods corresponding to MIS 5e and MIS 7 with a
peak-to-peak amplitude of &amp;delta;&lt;sup&gt;18&lt;/sup&gt;O = 5.3 &amp;permil;. Our record is
the first continuous &amp;delta;&lt;sup&gt;18&lt;/sup&gt;O&lt;sub&gt;diatom&lt;/sub&gt; record from an Arctic
lake sediment core directly responding to precipitation and dating back more
than 250 ka and correlates well with the stacked marine &amp;delta;&lt;sup&gt;18&lt;/sup&gt;O LR04
(&lt;i&gt;r&lt;/i&gt; = 0.58) and &amp;delta;D EPICA Dome-C record (&lt;i&gt;r&lt;/i&gt; = 0.69).
With &amp;delta;&lt;sup&gt;18&lt;/sup&gt;O results indicating strong links to both marine and
ice-core records, records from Lake El&apos;gygytgyn can be used to further
investigate the sensitivity of the Arctic climate to both past and future
global climatic changes.</p>
</abstract>
<counts><page-count count="39"/></counts>
</article-meta>
</front>
<body/>
<back>
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