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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-8-5429-2012</article-id>
<title-group>
<article-title>Greenland ice core evidence of the 79 AD Vesuvius eruption</article-title>
</title-group>
<contrib-group><contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Barbante</surname>
<given-names>C.</given-names>
</name>
<xref ref-type="aff" rid="aff1">
<sup>1</sup>
</xref>
<xref ref-type="aff" rid="aff2">
<sup>2</sup>
</xref>
</contrib>
<contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Kehrwald</surname>
<given-names>N. M.</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>Marianelli</surname>
<given-names>P.</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>Vinther</surname>
<given-names>B. M.</given-names>
</name>
<xref ref-type="aff" rid="aff4">
<sup>4</sup>
</xref>
</contrib>
<contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Steffensen</surname>
<given-names>J. P.</given-names>
</name>
<xref ref-type="aff" rid="aff4">
<sup>4</sup>
</xref>
</contrib>
<contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Cozzi</surname>
<given-names>G.</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>Hammer</surname>
<given-names>C. U.</given-names>
</name>
<xref ref-type="aff" rid="aff4">
<sup>4</sup>
</xref>
</contrib>
<contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Clausen</surname>
<given-names>H. B.</given-names>
</name>
<xref ref-type="aff" rid="aff4">
<sup>4</sup>
</xref>
</contrib>
<contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Siggaard-Andersen</surname>
<given-names>M.-L.</given-names>
</name>
<xref ref-type="aff" rid="aff4">
<sup>4</sup>
</xref>
</contrib>
</contrib-group><aff id="aff1">
<label>1</label>
<addr-line>Institute for the Dynamics of the Environmental Processes, CNR, University of Venice, 30123 Venice, Italy</addr-line>
</aff>
<aff id="aff2">
<label>2</label>
<addr-line>Department of Environmental Sciences, Informatics and Statistics, University of Venice, Ca&apos; Foscari, 30123 Venice, Italy</addr-line>
</aff>
<aff id="aff3">
<label>3</label>
<addr-line>Department of Earth Sciences, University of Pisa, 56126 Pisa, Italy</addr-line>
</aff>
<aff id="aff4">
<label>4</label>
<addr-line>Niels Bohr Institute, University of Copenhagen, 2100 Copenhagen, Denmark</addr-line>
</aff>
<pub-date pub-type="epub">
<day>07</day>
<month>11</month>
<year>2012</year>
</pub-date>
<volume>8</volume>
<issue>6</issue>
<fpage>5429</fpage>
<lpage>5454</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/8/5429/2012/cpd-8-5429-2012.pdf">The full text article is available as a PDF file from http://www.clim-past-discuss.net/8/5429/2012/cpd-8-5429-2012.pdf</self-uri>
<abstract>
<p>Volcanic tephra are indepenent age horizons and can synchronize strata of
various paleoclimate records including ice and sediment cores. Before such
paleoclimate records can be synchronized, it is essential to first
confidently identify individual independent marker horizons. The Greenland
Ice Core Project (GRIP) ice core from Central Greenland is often used as a
&quot;golden spike&quot; to synchronize Northern Hemisphere paleoclimte records. The
Holocene section of the GRIP ice core is dated by multi-parameter annual
layer counting, and contains peaks in acidity,
SO&lt;sub&gt;4&lt;/sub&gt;&lt;sup&gt;2&amp;minus;&lt;/sup&gt; and microparticle concentrations at
a depth of 428.4 to 429.6 m, which have not previously been definitively
ascribed to a volcanic eruption. Here, we identify tephra particles and
determine that volcanic shards extracted from a depth of 429.2 m in the GRIP
ice core are likely due to the 79 AD Vesuvius eruption. The chemical
compositon of the tephra particles is consistent with the K-phonolitic
composition of the Vesuvius juvinile ejecta and differs from the chemical
composition of other major eruptions (≥VEI 4) between 50–100 AD.</p>
</abstract>
<counts><page-count count="26"/></counts>
</article-meta>
</front>
<body/>
<back>
<ref-list>
<title>References</title>
<ref id="ref1">
<label>1</label><mixed-citation publication-type="other" xlink:type="simple"> Andersen,~K K., Svensson,~A., Johnsen,~S J., Rasmussen,~S O., Bigler,~M., Rothlisberger,~T., Ruth,~U., Siggard-Andersen,~M.-L., Peder Steffensen,~J., Dahl-Jensen,~D., Vinther,~B M., and Clausen,~H M.: The Greenland ice core chronology, 15–42 ka, Part~1: constructing the time scale, Quaternary Sci. Rev., 25, 3246–3257, 2006. </mixed-citation>
</ref>
<ref id="ref2">
<label>2</label><mixed-citation publication-type="other" xlink:type="simple"> Baker,~P E. and Condliffe,~E.: Compositional variation in submarine volcanic ashes from the vicinity of the Vanuatu island arc: a~reponse to ridge-arc collision?,~J. Volcanol. Geoth. Res., 72, 225–238, 1996 </mixed-citation>
</ref>
<ref id="ref3">
<label>3</label><mixed-citation publication-type="other" xlink:type="simple"> Balcone-Boissard,~H., Baker,~D R., Villemant,~B., and Boudon,~G.: F and Cl diffusion in phonolotic melts: influence of the Na/K ratio, Chem. Geol., 263, 89–98, 2009. </mixed-citation>
</ref>
<ref id="ref4">
<label>4</label><mixed-citation publication-type="other" xlink:type="simple"> Biass,~S. and Bonadonna,~C.: A~quantitative uncertainty assessment of eruptive parameters derived from tephra deposits: the example of two large eruptions of Cotopaxi volcano, Ecuador, Bull. Volcanol., 73, 73–90, 2011. </mixed-citation>
</ref>
<ref id="ref5">
<label>5</label><mixed-citation publication-type="other" xlink:type="simple"> Bigler,~M., Svensson,~A., Steffensen,~J P., and Kaufmann,~P.: A~new continuous high-resolution detection system for sulphate in ice cores, Ann. Glaciol., 45, 178–182, http://dx.doi.org/10.3189/172756407782282471doi:10.3189/172756407782282471, 2007. </mixed-citation>
</ref>
<ref id="ref6">
<label>6</label><mixed-citation publication-type="other" xlink:type="simple"> Blockley,~S P E., Lana,~C S., Lotter,~A F., and Pollard,~A M.: Evidence for the presence of the Vedde ash in Central Europe, Quaternary Sci. Rev., 26, 3030–3036, 2007. </mixed-citation>
</ref>
<ref id="ref7">
<label>7</label><mixed-citation publication-type="other" xlink:type="simple"> Bluth,~G J S., Schnetzler,~C C., Kruger,~A J., and Walter,~L S.: The contribution of explosive volcanism to global atmospheric sulpher dioxide concentrations, Nature, 366, 327–329, 1993. </mixed-citation>
</ref>
<ref id="ref8">
<label>8</label><mixed-citation publication-type="other" xlink:type="simple"> Briffa,~K R., Jones,~P D., Schweingruber,~F H., and Osborn,~T J.: Influence of volcanic eruptions on Northern Hemisphere summer temperature over the past 600~years, Nature, 393, 450–454, 1998. </mixed-citation>
</ref>
<ref id="ref9">
<label>9</label><mixed-citation publication-type="other" xlink:type="simple"> Carey,~S. and Sigurdsson,~H.: Temporal variations in column height and magma discharege rate during the 79 AD eruption of Vesuvius, Geol. Soc. Am. Bull., 99, 303–314, 1987. </mixed-citation>
</ref>
<ref id="ref10">
<label>10</label><mixed-citation publication-type="other" xlink:type="simple"> Cioni,~R.: Volatile content and degassing processes in the AD~79 magma chamber at Vesuvius (Italy), Contrib. Mineral. Petr., 140, 40–54, 2000. </mixed-citation>
</ref>
<ref id="ref11">
<label>11</label><mixed-citation publication-type="other" xlink:type="simple"> Cioni,~R., Marianelli,~P., and Sbrana,~A.: Dynamics of the AD~79 eruption: stratigraphic, sedimentological and geochemical data on the successions from the Somma-Vesuvius southern and eastern sectors, Acta Vulcanol., 2, 109–123, 1992. </mixed-citation>
</ref>
<ref id="ref12">
<label>12</label><mixed-citation publication-type="other" xlink:type="simple"> Cioni,~R., Civetta,~L., Marianelli,~P., Metrich,~N., Santacroce,~R., and Sbrana,~A.: Compositional layering and syn-eruptive mixing of a~periodically refilled shallow magma chamber: the AD~79 Plinian eruption of Vesuvius,~J. Petrol., 36, 739–776, 1995. </mixed-citation>
</ref>
<ref id="ref13">
<label>13</label><mixed-citation publication-type="other" xlink:type="simple"> Cioni,~R., Marianelli,~P., Santacroce,~R., and Sbrana,~A.: Plinian and subplinian eruptions, in: Encyclopedia of Volcanoes, edited by: Sigurdsson, H., Academic Press, San Diego, 477–494, 2000. </mixed-citation>
</ref>
<ref id="ref14">
<label>14</label><mixed-citation publication-type="other" xlink:type="simple"> Clausen,~H B. and Hammer,~C U.: The Laki and Tambora eruptions as revealed in Greenland ice cores from 11~locations, Ann. Glaciol., 10, 16–22, 1988. </mixed-citation>
</ref>
<ref id="ref15">
<label>15</label><mixed-citation publication-type="other" xlink:type="simple"> Clausen,~H B., Hammer,~C U., Hvidberg C S., Dahl-Jensen,~D., and Steffensen,~J P.: A~comparison of the volcanic recors over the past 4000~years from the Greenland ice core project and dye~3 Greenland ice cores,~J. Geophys. Res., 102, 27707–26723, 1997. </mixed-citation>
</ref>
<ref id="ref16">
<label>16</label><mixed-citation publication-type="other" xlink:type="simple"> Davies,~S M., Hoeck,~W Z., Bohncke,~S J P., Lowe,~J J., O&apos;Donnell,~S P., and Turney,~C S M.: Detection of lateglacial distal tephra layers in the Netherlands, Boreas, 34, 123–135, 2005. </mixed-citation>
</ref>
<ref id="ref17">
<label>17</label><mixed-citation publication-type="other" xlink:type="simple"> Davies,~S M., Wastegård, Abbott,~P M., Barbante,~C., Bigler,~M., Johnsen,~S J., Rasmusses,~T L., Steffensen,~J P., and Svensson,~A.: Tracing volcanic events in the NGRIP ice-core and synchronising North Atlantic marine records during the last glacial period, Earth Planet. Sc. Lett., 294, 69–79, 2010. </mixed-citation>
</ref>
<ref id="ref18">
<label>18</label><mixed-citation publication-type="other" xlink:type="simple"> Doubik,~P. and Hill,~B E.: Magmatic and hydrothermal conduit development during the 1975 Tolbachik eruption, Kamchatka, with implications for hazards assessmnet at Yucca mountain, N~V, J. Volcanol. Geoth. Res., 91, 43–64, 1999. </mixed-citation>
</ref>
<ref id="ref19">
<label>19</label><mixed-citation publication-type="other" xlink:type="simple"> Garrison,~J M., Davidson,~J P., Hall,~M., and Mothes,~P.: Geochemistry and petrology of the most recent deposits from Cotopaxi volcano, northern volcanic zone, Equador,~J. Petrol., 52, 1641–1678, 2011. </mixed-citation>
</ref>
<ref id="ref20">
<label>20</label><mixed-citation publication-type="other" xlink:type="simple"> Guest,~J E., Gaspar,~J L., Cole,~P D., Queiroz,~G., Duncan,~A M., Wallenstein,~N., Ferreira,~T., and Pacheco,~J.-M.: Volcanic geology of Furnas volcano, Sao Miguel, Azores, J. Volcanol. Geoth. Res., 92, 1–29, 1999. </mixed-citation>
</ref>
<ref id="ref21">
<label>21</label><mixed-citation publication-type="other" xlink:type="simple"> Hammer,~C U.: Traces of Icelandic eruptions in the Greenland ice sheet, Jökull, 34, 51–65, 1984. </mixed-citation>
</ref>
<ref id="ref22">
<label>22</label><mixed-citation publication-type="other" xlink:type="simple"> Hammer, C. U., Clausen, H. B., Dansgaard, W., Neftel, A., Kristinsdottir, P., and Johnson, E.: Continuous impurity analysis along the Dye-3 deep core, in: Greenland Ice Core: Geophysics, Geochemistry, and the Environment, edited by: Langway Jr., C. C., Oeschger, H., and Dansgaard, W., Geophys. Monogr 33, AGU, Washington, D.C., 90–94, 1985. </mixed-citation>
</ref>
<ref id="ref23">
<label>23</label><mixed-citation publication-type="other" xlink:type="simple"> Hammer,~C U., Andersen,~K K., Clausen,~H B., Dahl-Jensen,~D., Hvidberg,~C S., and Iversen,~P.: The stratigraphic dating of the GRIP ice core. Special report of the Geophysical Department, Niels Bohr Institute for Astronomy, Physics and Geophysics, University of Copenhagen, 1997. </mixed-citation>
</ref>
<ref id="ref24">
<label>24</label><mixed-citation publication-type="other" xlink:type="simple"> Hammer,~C U., Kurat,~G., Hoppe,~P., Grum,~W., and Clausen,~H B.: Thera eruption date 1645 BC confirmed by new ice core data?, in: Proc of SCIEM 2000, edited by: Bietak,~M., 87–94, 2003. </mixed-citation>
</ref>
<ref id="ref25">
<label>25</label><mixed-citation publication-type="other" xlink:type="simple"> Johnsen,~S J., Clausen,~H B., Dansgaard,~W., Gundestrup,~N S., Hammer,~C U., Andersen,~U., Andersen,~K K., Hvidberg,~C S., Dahl-Jensen,~D., Steffensen,~J P, Shoji,~H., Sveinbjörnsdóttir,~A E., White,~J., Jouzel,~J., and Fischer,~D.: The $\delta^18$O record along the Greenland ice core project deep ice core and the problem of possible Eemian climatic instability,~J. Geophys. Res., 102, 26397–26410, http://dx.doi.org/10.1029/97JC00167doi:10.1029/97JC00167, 1997. </mixed-citation>
</ref>
<ref id="ref26">
<label>26</label><mixed-citation publication-type="other" xlink:type="simple"> Kelly,~P M., Jones,~P D., and Pengqun,~J.: The spatial response of the climate system to explosive volcanic eruptions, Int J. Climatol., 16, 537–550, 1996. </mixed-citation>
</ref>
<ref id="ref27">
<label>27</label><mixed-citation publication-type="other" xlink:type="simple"> Kuehn,~S C., Froese,~D G., and Shane,~P A R.: INTAV intercomparison participants, the INTAV intercoparison of electron-beam microanalysis of glass by tephrochonology laboratories: results and recommendations, Quatern. Int., 246, 19–47, 2011. </mixed-citation>
</ref>
<ref id="ref28">
<label>28</label><mixed-citation publication-type="other" xlink:type="simple"> Kyle,~P., Ponomareva,~V V., and Schluep,~R R.: Geochemical characterization of marker tephra layers from major Holocene eruptions, Kamchatka Peninsula, Russia, Int. Geol. Rev., 53, 1059–1097, 2011. </mixed-citation>
</ref>
<ref id="ref29">
<label>29</label><mixed-citation publication-type="other" xlink:type="simple"> Lacasse,~C. and Garbe-Schonberg,~C D.: Explosive silicic volcanism in Iceland and the Jan mayen area during the last 6 Ma: sources and timing of major eruptions, J. Volcanol. Geoth. Res., 107, 113–147, 2001. </mixed-citation>
</ref>
<ref id="ref30">
<label>30</label><mixed-citation publication-type="other" xlink:type="simple"> Lamb,~H H.: Volcanic dust in the atmosphere, Philos. T. Roy. Soc. Lond A, 266, 426–533, 1970. </mixed-citation>
</ref>
<ref id="ref31">
<label>31</label><mixed-citation publication-type="other" xlink:type="simple"> Langway Jr.,~C C., Clausen,~H B., and Hammer,~C U.: An inter-hemispheric volcanic time-marker in ice cores from Greenland and Antarctica, Ann. Glaciol., 10, 102–108, 1988. </mixed-citation>
</ref>
<ref id="ref32">
<label>32</label><mixed-citation publication-type="other" xlink:type="simple"> Lerbekmo,~J F. and Campbell,~F A.: Distribution, composition, and source of the White River ash, Yukon territory, Can. J. Earth Sci., 6, 109–116, 1969. </mixed-citation>
</ref>
<ref id="ref33">
<label>33</label><mixed-citation publication-type="other" xlink:type="simple"> Machida,~H. and Arai,~F.: Extensive ash falls in and around the sea of Japan from large late quaternary eruptions, J. Volcanol. Geoth. Res., 18, 151–164, 1983. </mixed-citation>
</ref>
<ref id="ref34">
<label>34</label><mixed-citation publication-type="other" xlink:type="simple"> Macias,~J L., Espindola,~J M., Garcia-Palomo,~A., Scott,~K M., Hughes,~S., and Mora,~J C.: Late Holocene pelean-style eruption at Tacana volcano, Mexico and Guatemala: past, present, and future hazards, Geol. Soc. Am. Bull., 112, 1234–1249, 2000. </mixed-citation>
</ref>
<ref id="ref35">
<label>35</label><mixed-citation publication-type="other" xlink:type="simple"> Marianelli,~P. and Sbrana,~A.: Risultati di misure di standard di minerali e di vetri naturali in microanalisi a~dispersione di energia, Atti. Soc. Tosc. Sci. Nat., Mem., Serie~A, 105, 57–63, 1998. </mixed-citation>
</ref>
<ref id="ref36">
<label>36</label><mixed-citation publication-type="other" xlink:type="simple"> Messchumacher,~U.: Chemical variations of the AD~79 pumice deposits of Vesuvius, Eur J. Mineral., 6, 387–395, 1994. </mixed-citation>
</ref>
<ref id="ref37">
<label>37</label><mixed-citation publication-type="other" xlink:type="simple"> Newhall, C. G. and Self, S.: The volcanic explosivity index (VEI): an estimate of explosive magnitude for historical volcanism, J. Geophys. Res.-Oceans, 87, 1231–1238, 1982. </mixed-citation>
</ref>
<ref id="ref38">
<label>38</label><mixed-citation publication-type="other" xlink:type="simple"> Nielsen,~C H. and Sigurdsson,~H.: Quantitative methods for electron microscope analysis of sodium in natural and syntetic glasses, Am. Mineral., 66, 547–552, 1981. </mixed-citation>
</ref>
<ref id="ref39">
<label>39</label><mixed-citation publication-type="other" xlink:type="simple"> Palais,~J M., Kirchner,~S., and Delmas,~R J.: Identification of some global volcanic horizons by major element analysis of fine ash in Antarctic ice, Ann. Glaciol., 14, 216–220, 1990. </mixed-citation>
</ref>
<ref id="ref40">
<label>40</label><mixed-citation publication-type="other" xlink:type="simple"> Palais,~J M., Germani,~M S., and Zielinski,~G A.: Interhemispheric transport of volcanic ash from a 1259~AD volcanic eruption to the Greenland and Antarctic ice sheets, Geophys. Res. Lett., 18, 801–804, 1992. </mixed-citation>
</ref>
<ref id="ref41">
<label>41</label><mixed-citation publication-type="other" xlink:type="simple"> Rasmussen, S. O., Andersen, K. K., Svensson, A. M., Steffensen, J. P., Vinther, B. M., Clausen, H. B., Siggaard-Andersen, M.-L., Johnsen, S. J., Larsen, L. B., Dahl-Jensen, D., Bigler, M., Röthlisberger, R., Fischer, H., Goto-Azuma, K., Hansson, M. E., and Ruth, U.: A new Greenland ice core chronology for the last glacial termination, J. Geophys. Res., 111, D06102, http://dx.doi.org/10.1029/2005JD006079doi:10.1029/2005JD006079, 2006. </mixed-citation>
</ref>
<ref id="ref42">
<label>42</label><mixed-citation publication-type="other" xlink:type="simple"> Robin,~C., Eissen,~J P., and Monzier,~M.: Giant tuff cone and 12-km-wide associated caldera at Ambrym volcano (Vanuatu, New Hebrides Arc),~J. Volcanol. Geotherm. Res., 55, 225–238, 1993. </mixed-citation>
</ref>
<ref id="ref43">
<label>43</label><mixed-citation publication-type="other" xlink:type="simple"> Robin,~C., Smaniego,~P., Le Pennec,~J.-L., Mothes,~P., and van der Plicht,~J.: Late Holocene phases of dome growth and Plinian activity at Guagua Pichincha volcano (Ecuador),~J. Volcanol. Geoth. Res., 176, 7–15, 2008. </mixed-citation>
</ref>
<ref id="ref44">
<label>44</label><mixed-citation publication-type="other" xlink:type="simple"> Roden,~M F., Frey,~F A., and Clague,~D A.: Geochemistry of tholeitiic and alkalik lavas from the Koolau range, Oahu, Hawaii: implications for Hawaiian volcanism, Earth Planet. Sc. Lett., 69, 141–158, 1984. </mixed-citation>
</ref>
<ref id="ref45">
<label>45</label><mixed-citation publication-type="other" xlink:type="simple"> Santacroce,~R., Cioni,~R., Marianelli,~P., Sbrana,~A., Sulpizio,~R., Zanchetta,~G., Donahue,~D J., and Joron,~J L.: Age and whole rock-glass compositions of proximal pyroclastics from the major explosive eruptions of Somma-Vesiuvius: a~review as a~tool for distal tephrostratigraphy, J. Volcanol. Geoth. Res., 177, 1–18, 2008. </mixed-citation>
</ref>
<ref id="ref46">
<label>46</label><mixed-citation publication-type="other" xlink:type="simple"> Shane,~P. and Wright,~I C.: Late Quaternary tephra layers around Raoul and Macauly island, Kermadec arc: implications for volcanic sources, explosive volcanism and tephrochronology, J. Quaternary Sci., 26, 422–432, 2011. </mixed-citation>
</ref>
<ref id="ref47">
<label>47</label><mixed-citation publication-type="other" xlink:type="simple"> Sheridan,~M F., Barberi,~F., Rosi,~M., and Santacroce,~R.: A~model of Plinian eruptions of Vesuvius, Nature, 289, 282–285, 1981. </mixed-citation>
</ref>
<ref id="ref48">
<label>48</label><mixed-citation publication-type="other" xlink:type="simple"> Sigurdsson,~H., Carey,~S., Cornell,~W., and Pescatore,~T.: The eruption of Vesuvius in 79~AD, Natl. Geogr. Res., 1, 1–37, 1985. </mixed-citation>
</ref>
<ref id="ref49">
<label>49</label><mixed-citation publication-type="other" xlink:type="simple"> Sigurdsson,~H., Cornell,~W., and Carey,~S.: Influence of magma withdrawal on compositional gradients during the AD~79 Vesuvius eruption, Nature, 345, 519–521, 1990. </mixed-citation>
</ref>
<ref id="ref50">
<label>50</label><mixed-citation publication-type="other" xlink:type="simple"> Soden,~B J., Wetherald,~R T., Stenchikov,~G L., and Robock,~A.: Global cooling after the eruption of Mount Pinatubo: a~test of climate feedback by water vapor, Science, 296, 727–730, 2002. </mixed-citation>
</ref>
<ref id="ref51">
<label>51</label><mixed-citation publication-type="other" xlink:type="simple"> Stothers,~R B.: The great Tampora eruption in 1815 and its aftermath, Science, 224, 1191–1198, 1984. </mixed-citation>
</ref>
<ref id="ref52">
<label>52</label><mixed-citation publication-type="other" xlink:type="simple"> Stothers,~R B. and Rampino,~M R.: Volcanic eruptions in the Mediterranean before, A.D 630 from written and archaeological sources, J. Geophys. Res., 88, 6357–6371, 1983. </mixed-citation>
</ref>
<ref id="ref53">
<label>53</label><mixed-citation publication-type="other" xlink:type="simple"> Steffensen,~J P.: The size distribution of microparticles from selected segments of the Greenland ice core project ice core representing different climatic periods,~J. Geophys. Res., 102, 26755–26763, 1997. </mixed-citation>
</ref>
<ref id="ref54">
<label>54</label><mixed-citation publication-type="other" xlink:type="simple"> Svensson,~A., Andersen,~K K., Bigler,~M., Clausen,~H B., Dahl-Jensen,~D., Davies,~S M., Johnsen,~S J., Muscheler,~R., Parrenin,~F., Rasmussen,~S O., Röthlisberger,~R., Seierstad,~I., Steffensen,~J P., and Vinther,~B M.: A 60 000~year Greenland stratigraphic ice core chronology, Clim. Past, 4, 47–57, http://dx.doi.org/10.5194/cp-4-47-2008doi:10.5194/cp-4-47-2008, 2008. </mixed-citation>
</ref>
<ref id="ref55">
<label>55</label><mixed-citation publication-type="other" xlink:type="simple"> Taylor,~K C., Alley,~R B., Lamorey,~G W., and Mayewski,~P.: Electical measurments on the Greenland ice sheet project~2 core,~J. Geophys. Res., 102, 26511–26517, 1997. </mixed-citation>
</ref>
<ref id="ref56">
<label>56</label><mixed-citation publication-type="other" xlink:type="simple"> Vinther,~B M., Clausen,~H B., Johnsen,~S J., Rasmussen,~S O., Andersen,~K K., Buchardt,~S L., Dahl-Jensen,~D., Seierstad,~I K., Siggaard-Andersen,~M.-L., Steffensen,~J P., Svensson,~A., Olsen,~J., and Heinemeier,~J.: A~synchronized dating of three Greenland ice cores throughout the Holocene,~J. Geophys. Res., 111, D13102, http://dx.doi.org/10.1029/2005JD006921doi:10.1029/2005JD006921, 2006. </mixed-citation>
</ref>
<ref id="ref57">
<label>57</label><mixed-citation publication-type="other" xlink:type="simple"> Wolff,~J A. and Storey,~M.: The volatile component of some pumice-forming alkaline magmas from the Azores and Canary islands, Contrib. Mineral. Petr., 82, 66–74, 1983. </mixed-citation>
</ref>
<ref id="ref58">
<label>58</label><mixed-citation publication-type="other" xlink:type="simple"> Zielinski,~G A.: Stratospheric loading and optical depth estimates of explosive volcanism over the last 2100~years derived from the Greenland ice sheet project~2 ice core, J. Geophys. Res., 100, 20937–20955, 1995. </mixed-citation>
</ref>
<ref id="ref59">
<label>59</label><mixed-citation publication-type="other" xlink:type="simple"> Zielinski,~G A. and Germani,~M S.: New Ice-Core Evidence Challenges the 1620s BC age for the Santorini (Minoan) eruption, J. Archaeol. Sci., 25, 279–289, 1998. </mixed-citation>
</ref>
<ref id="ref60">
<label>60</label><mixed-citation publication-type="other" xlink:type="simple"> Zielinski,~G A., Mayewski,~P A., Meeker,~L D., Whitlow,~S., Twickler,~M S., Morrison,~M., Meese,~D., Alley,~R B., and Gow,~A J.: Record ofvolcanism since 7000 B.C from the GISP2 Greenland ice core and implications for the volcano-climate system, Science, 264, 984–952, 1994. </mixed-citation>
</ref>
<ref id="ref61">
<label>61</label><mixed-citation publication-type="other" xlink:type="simple"> Zielinski,~G A., Mayewski,~P A., Meeker,~L D., Whitlow,~S., and Twickler,~M S.: A 110,000~year record of explosive volcanism from the GISP~2 (Greenland) ice core, Quaternary Res., 45, 109–118, 1996. </mixed-citation>
</ref>
</ref-list>
</back>
</article>