<html> <head> <meta http-equiv=Content-Type content="text/html; charset=unicode"> <meta name=Generator content="Microsoft Word 12 (filtered)"> <style> <!-- /* Font Definitions */ @font-face {font-family:[SO; panose-1:2 1 6 0 3 1 1 1 1 1;} @font-face {font-family:"Cambria Math"; panose-1:2 4 5 3 5 4 6 3 2 4;} @font-face {font-family:Cambria; panose-1:2 4 5 3 5 4 6 3 2 4;} @font-face {font-family:"\@[SO"; panose-1:2 1 6 0 3 1 1 1 1 1;} /* Style Definitions */ p.MsoNormal, li.MsoNormal, div.MsoNormal {margin:0cm; margin-bottom:.0001pt; font-size:12.0pt; font-family:[SO;} h3 {mso-style-link:"h 3 Char"; margin-right:0cm; margin-left:0cm; font-size:13.5pt; font-family:[SO; font-weight:bold;} h4 {mso-style-link:"h 4 Char"; margin-right:0cm; margin-left:0cm; font-size:12.0pt; font-family:[SO; font-weight:bold;} p.MsoHeader, li.MsoHeader, div.MsoHeader {mso-style-link:"u w Char"; margin:0cm; margin-bottom:.0001pt; text-align:center; layout-grid-mode:char; border:none; padding:0cm; font-size:9.0pt; font-family:[SO;} p.MsoFooter, li.MsoFooter, div.MsoFooter {mso-style-link:"u Char"; margin:0cm; margin-bottom:.0001pt; layout-grid-mode:char; font-size:9.0pt; font-family:[SO;} a:link, span.MsoHyperlink {color:blue; text-decoration:underline;} a:visited, span.MsoHyperlinkFollowed {color:purple; text-decoration:underline;} p {margin-right:0cm; margin-left:0cm; font-size:12.0pt; font-family:[SO;} span.3Char {mso-style-name:"h 3 Char"; mso-style-link:"h 3"; font-family:[SO; font-weight:bold;} span.4Char {mso-style-name:"h 4 Char"; mso-style-link:"h 4"; font-family:"Cambria","serif"; font-weight:bold;} p.msochpdefault, li.msochpdefault, div.msochpdefault {mso-style-name:msochpdefault; margin-right:0cm; margin-left:0cm; font-size:10.0pt; font-family:[SO;} span.Char {mso-style-name:"u w Char"; mso-style-link:u w; font-family:[SO;} span.Char0 {mso-style-name:"u Char"; mso-style-link:u; font-family:[SO;} .MsoChpDefault {font-size:10.0pt;} /* Page Definitions */ @page WordSection1 {size:595.3pt 841.9pt; margin:72.0pt 90.0pt 72.0pt 90.0pt;} div.WordSection1 {page:WordSection1;} --> </style> <!-- --> </head> <body lang=ZH-CN link=blue vlink=purple> <div class=WordSection1> <div id=mainContent> <h3><span lang=EN-US style='font-family:"Arial","sans-serif";color:blue'>GSSP for Visean Stage</span></h3> <p class=MsoNormal><span lang=EN-US style='font-family:"Arial","sans-serif"; color:red'>&nbsp;</span></p> <h4><span lang=EN-US style='font-family:"Arial","sans-serif";color:red'>Definition:</span></h4> <p class=MsoNormal style='text-autospace:none'><span lang=EN-US style='font-family:"Arial","sans-serif";color:red'>The GSSP for the base of the Visean Stage is defined on t</span><span lang=EN-US style='font-family:"Arial","sans-serif"; color:red'>he first appearance of </span><i><span lang=EN-US style='font-family: "Arial","sans-serif";color:red'>Eoparastaffella simplex</span></i><span lang=EN-US style='font-family:"Arial","sans-serif";color:red'> in the lineage <i>Eoparastaffella ovalis  Eoparastaffella simplex</i> (foraminifers), at the Pengchong section, Guangxi, South China</span><span lang=EN-US style='font-family:"Arial","sans-serif"; color:red'>. </span></p> <p class=MsoNormal style='text-autospace:none'><span lang=EN-US style='font-family:"Arial","sans-serif";color:red'>&nbsp;</span></p> <table class=MsoNormalTable border=0 cellpadding=0> <tr> <td style='padding:.75pt .75pt .75pt .75pt'> <h4><span lang=EN-US style='font-family:"Arial","sans-serif"'>Location:</span></h4> <p class=MsoNormal><span lang=EN-US style='font-family:"Arial","sans-serif"'>At the Pengchong section, Guangxi, South China</span><span lang=EN-US style='font-family:"Arial","sans-serif"'>. </span></p> </td> <td valign=bottom style='padding:.75pt .75pt .75pt .75pt'></td> </tr> </table> <p class=MsoNormal style='margin-bottom:12.0pt'><span lang=EN-US style='font-family:"Arial","sans-serif"'>&nbsp;</span></p> <table class=MsoNormalTable border=0 cellpadding=0> <tr> <td style='padding:.75pt .75pt .75pt .75pt'> <h4><span lang=EN-US style='font-family:"Arial","sans-serif"'>Sedimentology:</span></h4> <p class=MsoNormal><span lang=EN-US style='font-family:"Arial","sans-serif"'>The Pengchong Member is composed of dark grey limestone beds of various thicknesses (mainly in the range 20-150 cm) interbedded with subordinate thin- to medium-bedded (d"10 cm but up to 60 cm locally) dark calcareous shales that become more abundant and thicker towards the top. The member is organized in decametre-thick parasequences, either thinning and shalier or conversely thickening and more limestone-rich upwards.</span></p> </td> <td valign=bottom style='padding:.75pt .75pt .75pt .75pt'></td> </tr> </table> <p class=MsoNormal style='margin-bottom:12.0pt'><span lang=EN-US style='font-family:"Arial","sans-serif"'>&nbsp;</span></p> <h4><span lang=EN-US style='font-family:"Arial","sans-serif"'>Primary Markers:</span></h4> <p class=MsoNormal style='margin-bottom:12.0pt'><span lang=EN-US>Benthic Foraminifer FAD <i>Eoparastaffella simplex</i></span><span lang=EN-US style='font-family:"Arial","sans-serif"'>.</span></p> <h4><span lang=EN-US style='font-family:"Arial","sans-serif"'>Secondary Markers:</span></h4> <h4><span lang=EN-US style='font-family:"Arial","sans-serif";font-weight:normal'>&nbsp;</span></h4> <p class=MsoNormal style='margin-bottom:12.0pt'><b><span lang=EN-US style='font-family:"Arial","sans-serif"'>Radiometric Dating:</span></b></p> <p class=MsoNormal style='margin-bottom:12.0pt'><span lang=EN-US style='font-family:"Arial","sans-serif"'><br> <br> <b>Stable Carbon Isotopes:</b><br> <br> </span></p> <h4><span lang=EN-US style='font-family:"Arial","sans-serif"'>Correlation Events:</span></h4> <p class=MsoNormal style='margin-bottom:12.0pt'><span lang=EN-US>Benthic Foraminifer FAD <i>Eoparastaffella simplex.</i></span></p> <h4><span lang=EN-US style='font-family:"Arial","sans-serif"'>Other Locations around the World:</span></h4> <p class=MsoNormal style='margin-bottom:12.0pt'><span lang=EN-US style='font-family:"Arial","sans-serif"'>&nbsp;</span></p> <h4><span lang=EN-US style='font-family:"Arial","sans-serif"'>Notes on Derivation of Age:</span></h4> <p class=MsoNormal style='margin-bottom:12.0pt'><span lang=EN-US style='font-family:"Arial","sans-serif"'>&nbsp;</span></p> <h4><span lang=EN-US style='font-family:"Arial","sans-serif"'>References:</span></h4> <p style='margin-left:36.0pt;text-indent:-36.0pt'><span lang=EN-US style='font-family:"Arial","sans-serif"'><a href="Visean.pdf">Devuyst,<span style='font-family:[SO;color:windowtext;text-decoration:none'> </span>F.-X., Hance, L., Hou,<span style='font-family:[SO;color:windowtext;text-decoration:none'> </span>H.F., Wu,<span style='font-family:[SO;color:windowtext;text-decoration:none'> </span>X.H., Tian,<span style='font-family:[SO;color:windowtext;text-decoration:none'> </span>S.G., Coen,<span style='font-family:[SO;color:windowtext;text-decoration:none'> </span>M., Sevastopulo,<span style='font-family:[SO;color:windowtext;text-decoration:none'> </span>G. 2003. A proposed Global Stratotype Section and Point for the base of the Visan Stage (Carboniferous): the Pengchong section, Guangxi, South China. Episodes, 26(2): 105-115.</a></span></p> <p class=MsoNormal><span lang=EN-US style='font-family:"Arial","sans-serif"'>&nbsp;</span></p> <p class=MsoNormal><span lang=EN-US style='font-family:"Arial","sans-serif"'><br> <a href="index.html">Back to GSSP Table</a></span></p> </div> </div> <!-- --> </body> </html>