評(píng)論
打印
In the rocks there were brown layers which came from old riverbeds.
巖石中有古老河床形成的褐色地層
Above this were grey layers made up of lake muds.
上面是湖泊泥渣形成的灰色地層
These two layers seemed to be evidence for a very wet climate,
這兩個(gè)地層證明了當(dāng)時(shí)的濕潤(rùn)氣候
but nearby in the same formation there were very different rocks, fossilised sand-dunes.
但是在附近同樣的地質(zhì)結(jié)構(gòu)中，卻存在著完全不同的巖層，石化沙丘
This was evidence for a very dry climate. It didn't seem to make sense.
它是干旱氣候的證據(jù)。這真是莫名其妙
You might see one report that said it was desert
可能一篇報(bào)導(dǎo)說(shuō)這是沙漠
and then you might see another report that said it was tropical rainforest in the same place,
而另一篇報(bào)導(dǎo)卻說(shuō)這是熱帶雨林都在同一個(gè)地方，
but clearly both of those can't be right.
顯然這兩種說(shuō)法都不正確
Well you wouldn't think they could both be right
既然這些觀點(diǎn)都不對(duì)
and so it was just sort of trying to figure out what that all meant,
那我們要做的就是找出這里的事實(shí)真相
how you could, how these two radically different signals in the same piece of geology that,
同樣地質(zhì)條件下存在著兩種截然不同的情況
that really was one of the things that made this so interesting and surprising.
這確實(shí)是讓人感到奇怪和好奇的事
But as she studied these contradictory signals,
隨著Judy研究這些矛盾的事實(shí)
Judy realised there was one answer that would solve the riddle.
她意識(shí)到只有一種解釋能解開(kāi)謎團(tuán)
The climate had to be two things at once, a hot, dry season and a short but very intense wet season.
當(dāng)時(shí)這兩種氣候必然一起發(fā)生，即炎熱的旱季和短暫而強(qiáng)烈的雨季
This would explain how rivers and deserts could appear at the same time.
這就能解釋為什么河流和沙漠會(huì)在同一時(shí)期出現(xiàn)。
