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So this layer up here has nothing to do with the lower level,
所以這里的上層地層和下層地層絲毫不相干，
the two are separated by time, and by a considerable amount of time.
它們因為時間而分隔，而且肯定是很長一段時間。
The next awkward fact was the existence of layers of muddy sedimentary rock, interspersed in the sandstone.
下一個反面事實則是泥沙沉積巖層的存在，它們散布在沙巖中。
These they thought would have taken a long time to form.
他們認為它需要很長一段時間才能形成。
They are made of fine grains which tend to build up slowly on the sea floor.
它們由在海底慢慢堆積的細小顆粒組成。
So these fine grains needed some time to settle, in fact an awful lot of time
這些泥沙需要一段時間沉淀，實際上是相當長的一段時間，
and in that case these sandstones would be separated by some time.
就這點而言，這些沙巖應該分為不同的時間段。
Then, near the bottom of the outcrop, they discovered their third awkward fact -- a layer of limestone.
接著，他們在裸露巖層的底部找到了第三個反面事實：石灰巖層。
Limestone is given away by its violent reaction to acid.
石灰巖很容易和酸反應并被溶解。
It can also take a very long time to form.
它的形成也需要長久的年份。
Finally, Keller and Stinnesbeck discovered their most awkward fact of all.
最后，Keller和Stinnesbeck找到了最有力的反面證據。
It lay eight metres below the outcrop. It was another layer of spherules.
它位于裸露巖層下方8米的地方。它是另一個小球體層。
Chemical analysis suggested, these remains of tiny meteorites like the layer higher up could only have come from the Chicxulub crater.
化學分析顯示，這些隕石殘留體和上方的小球體層一樣，只有可能來自希克蘇魯伯隕石坑。
For Keller and Stinnesbeck, this changed everything.
對于Keller和Stinnesbeck來說，這將改變整個局面。
