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type="text/css"></style> <div id="ct" class="ct2 wp cl"> <div class="mn"> <div class="bm_haa cl"> <div class="bm_h cl"> <a href="http://www.oecr.com/portal.php?mod=rss&catid=58" class="y xi2 rss" target="_blank" title="RSS">订阅</a><h1 class="xs2">文章</h1> </div></div> <div class="kjkjb"> <div class="bm vw" style="margin-bottom:0;"> <div class="h hm"> <div class="zxtoux"><img src="http://www.oecr.com/uc_server/avatar.php?uid=54876&size=small" /></div> <h1 class="ph">8万多年前化石：人类离开非洲时间可能更早 </h1> <p class="xg1"> 时间：2018-4-11 09:59<a class="zz" href="home.php?mod=space&uid=54876">作者：update</a> 阅读<em id="_viewnum">(999)</em> 评论: <a href="http://www.oecr.com/portal.php?mod=comment&id=6481&idtype=aid" title="查看全部评论"><em id="_commentnum">5</em></a></p> <div class="zxfb" ><a href="http://www.oecr.com/portal.php?mod=rss&catid=58" class="y xi2 rss" target="_blank" title="RSS">订阅</a></div> </div> <!--[diy=diysummarytop]--><div id="diysummarytop" class="area"></div><!--[/diy]--> <div class="s"> <div class="ss"><div><span>导读： </span>现代人逾30万年前出现在非洲。很长时间以来，人们认为人类在大约6万年前才离开其“出生的摇篮”。</div> </div> <!--[diy=diysummarybottom]--><div id="diysummarybottom" class="area"></div><!--[/diy]--> <div class="d"> <!--[diy=diycontenttop]--><div id="diycontenttop" class="area"></div><!--[/diy]--> <table cellpadding="0" cellspacing="0" class="vwtb"><tr><td id="article_content"><div> 现代人逾30万年前出现在非洲。很长时间以来，人们认为人类在大约6万年前才离开其“出生的摇篮”。但最近几年，包括此次研究一起的许多发现对这个<a href="http://theory.oecr.com" target="_blank" class="relatedlink">理论</a>提出了质疑。据法国《费加罗报》4月9日报道，根据英国杂志《自然•生态学与进化》4月9日发布的一份研究，沙特阿拉伯大内夫得沙漠发现的手指骨化石表明，现代人早在8.5万年前就已经到达了半岛地区。</div><div><br></div><div><p style="text-align: center;"><a href="data/attachment/portal/201804/11/095918b4n369pnf69a68j6.png" target="_blank"><img src="data/attachment/portal/201804/11/095918b4n369pnf69a68j6.png"></a></p></div><div><br></div><div> 发现于2016年的这块化石长仅为3.2厘米，可能是一位成人的中指骨头。为了确定化石的年份，格鲁卡特及其团队使用了放射性<a href="http://opticaltest.oecr.com" target="_blank" class="relatedlink">测量</a>的方法。该团队认为，这可能是非洲以外发现的、能够直接确定日期的最古老化石，其他的化石均需借助周围的沉积物来确定时间。</div><div><br></div><div><p style="text-align: center;"><a href="data/attachment/portal/201804/11/095928xm76ml6vs9gk3wm7.png" target="_blank"><img src="data/attachment/portal/201804/11/095928xm76ml6vs9gk3wm7.png"></a></p></div><div><br></div><div> 根据这份最新研究，所发现的指骨毫无疑问属于现代人，至少已有8.5万年，甚至9万年。</div><div><br></div><div> 研究的共同作者、牛津大学专家霍•格鲁卡特(Huw Groucutt)称，此次发现意味着，人类分散至非洲以外地区的时间比此前认为的更早。</div><div><br></div><div> 研究的另外一位作者指出，根据主流理论，大约6万年前，现代人沿着地中海海岸向东，大规模离开非洲。但这个化石表明，现代人前往的地方是欧亚大陆，而非地中海沿岸。</div><div><br></div><div><p style="word-wrap: normal; margin: 0px; padding: 0px; color: rgb(143, 143, 143); font-family: Tahoma, "Microsoft Yahei", Simsun; background-color: rgb(255, 255, 255); text-align: center;"><b style="word-wrap: normal;"><font size="5" style="word-wrap: normal;">欢迎关注OECR公众号</font></b></p><p style="word-wrap: normal; margin: 0px; padding: 0px; color: rgb(143, 143, 143); font-family: Tahoma, "Microsoft 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name="comment_anchor_16643"></a> <dl id="comment_16643_li" class="ptm pbm bbda cl"> <dt class="mbm"> <span class="y xw0 xi2"> <a href="javascript:;" onclick="portal_comment_requote(16643, '6481');">引用</a> </span> <a href="http://club.oecr.com/space-uid-47142.html" class="xi2 xw1" c="1">19760106zz</a> <span class="xg1 xw0">2018-4-11 21:30</span> </dt> <dd>顶起来，希望大家都喜欢讨论啊。</dd> </dl><a name="comment_anchor_16633"></a> <dl id="comment_16633_li" class="ptm pbm bbda cl"> <dt class="mbm"> <span class="y xw0 xi2"> <a href="javascript:;" onclick="portal_comment_requote(16633, '6481');">引用</a> </span> <a href="http://club.oecr.com/space-uid-70508.html" class="xi2 xw1" c="1">alexhw614</a> <span class="xg1 xw0">2018-4-11 17:00</span> </dt> <dd>世界变化了，大家不爱帮助人了。</dd> </dl><a name="comment_anchor_16624"></a> <dl id="comment_16624_li" class="ptm pbm bbda cl"> <dt class="mbm"> <span class="y xw0 xi2"> <a href="javascript:;" onclick="portal_comment_requote(16624, '6481');">引用</a> </span> <a href="http://club.oecr.com/space-uid-82432.html" class="xi2 xw1" c="1">goto_mainloop</a> <span class="xg1 xw0">2018-4-11 12:29</span> </dt> <dd>挺好，有希望了。</dd> </dl><a name="comment_anchor_16622"></a> <dl id="comment_16622_li" class="ptm pbm bbda cl"> <dt class="mbm"> <span class="y xw0 xi2"> <a href="javascript:;" onclick="portal_comment_requote(16622, '6481');">引用</a> </span> <a href="http://club.oecr.com/space-uid-48227.html" class="xi2 xw1" c="1">鹰扬风舞</a> <span class="xg1 xw0">2018-4-11 11:29</span> </dt> <dd>鼎力支持！！</dd> </dl><a name="comment_anchor_16619"></a> <dl id="comment_16619_li" class="ptm pbm bbda cl"> <dt class="mbm"> <span class="y xw0 xi2"> <a href="javascript:;" onclick="portal_comment_requote(16619, '6481');">引用</a> </span> <a href="http://club.oecr.com/space-uid-70676.html" class="xi2 xw1" c="1">helixd</a> <span class="xg1 xw0">2018-4-11 09:59</span> </dt> <dd>楼下的接上</dd> </dl></div> </div> <!--[diy=diycontentcomment]--><div id="diycontentcomment" 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