萨格登

至于花粉，萨格登说从未有人精确地测定过它的年代，也许它是源于更早的温和时期。

As for the pollen , Sugden says it has never been accurately dated and may come from a much earlier clement period .

但是萨格登说，浮游生物可能来自南极洲沿岸的海水，是被风吹到山里的。

But Sugden says the plankton could instead have come from sea ice off the Antarctic coast and been blown into the mountains by wind .

萨格登说，假如气候曾经像一些研究者所宣称的那么暖和，那些冰无论如何也已融化了。

Had the climate ever gotten as warm as some researchers have claimed , though , Sugden argues , the ice would have melted anyway .

萨格登认为当覆盖在这个地区的冰大多被汽化时，就只剩下了悬在冰川中的碎石。

Sugden believes that as most of the ice that once covered this area sublimed , the rocky debris suspended in the glacier was left behind .

萨格登说：“发现这么古老的东西令人振奋，它确实使我们很激动并有机会去了解那个时代的气候和大气状况。”

Says sugden : " it 's rather exciting to find something that old , and it does give us the very exciting chance to have a look at the climate and atmosphere of the time . "