Could these massive reservoirs of methane, he now wondered, be the source of the carbon 12 found in Permian rocks 他现在想知道，这些大型甲烷矿藏是否就是二叠纪岩层中碳-12的来源， and if it was, how did it get there? 如果是...
The key to the puzzle would come from a totally unexpected quarter. 解谜的密钥来自一个出人意料的地方。 Gerry Dickens is a geologist working on new sources of energy. Gerry Dickens是一位研究能源开采的地质学家。 He had n...
Three long, slow phases, sprawled over at least 80,000 years, 3个漫长缓慢的过程总共延续了8万年之久， very different from how the meteor theorists had seen it. 与先前的天体碰撞论大相径庭。 Yet Wignall was still no close...
There was just a huge range of little tiny fossils in these rocks, 这些岩石中包藏着大量微小的化石， which were telling us in fantastic detail just what was going on at this time 含有关于那个时期相当丰富的信息， and the...
Wignall now suspected he was onto something big. Wignall希望他能有大的发现。 The expedition spent a month amassing samples. 考察队花了几个月收集标本。 They shipped back 20 crates of rock to Britain. 他们寄回英国的标本多...
We were astounded by just how much, how much cliff there was to examine. 我们都很吃惊竟然要测定这么宽的崖壁。 The whole Permian extinction story seemed to be spread through tens of meters of cliff, 看起来这几十米的崖壁应该...
It's a country known to contain Permian rock, but always considered too difficult to explore. 那里以富含二叠纪岩石而闻名，但一直被认为是一个探索的艰险之地。 In the late 1990s, he took a gamble and flew out there. 上世纪...
No traces of iridium dust and not much shattered quartz. It didn't add up. 既没有铱元素的踪迹，也没有多少破碎石英。这完全说不通。 For a meteor to kill 95% of all life on earth, it should have been the size of Manhattan. 既然...
This quartz had a very strange set of parallel fracture-like fused planes, running through it at several angles. 这种石英中有非常奇怪的平行裂丝状结构，从各个角度贯穿晶体。 Something had shuttered the quartz. 看来有什么...
Greg Retallack was one of those involved in the search. Greg Retallack是其中一位搜寻者。 He concentrated his efforts in Antarctica. 他的工作重点是在南极洲。 There was definitely a missing piece to this whole thing, 整件事中的确...
