向深海出发（2008）

It's worth going for.
值得一试
Yeah, I agree.
同意
Next morning they set out for the sea caves
第二天早上 他们向海洞进发
and a dive that could allow them to investigate
这次潜水将允许他们探明
the birth of the Southern Ocean.
南海的诞生
Every metre they descend will take them further back in geological time.
他们每下潜一米就会更加深入地质时期
They're searching these cliffs for fossils of ancient sea creatures
他们来到达些悬崖里寻找古代海洋生物的化石
that lived over 300 million years ago
生活在三亿年前的…
and might hold clues to the Southern Ocean's formation.
化石也许具有南海形成的线素
We're kind of looking for small boulders that we can pick up
我们要找一些小石头带回去
because the idea is to bring them back out of the caves,
就是把它们从洞穴里拿出来
send them up on a lift bag
装在袋子里升上去
and then have a look at them on the back of the deck
然后放在后甲板研究它们
because our time down there is so limited.
因为我们潜水的时间有限
This time the surge is much more manageable.
这次的湖水更加容易应付
This is the entrance, this is it.
这是入口 就是这
But the power of this sea can never be underestimated.
但是南海的力量永远不能低估
I can feel myself being pushed in by the waves.
我能感觉到自己被冲进洞穴里
Once they enter the cave system,
旦他们进入洞穴系统
all communications with the surface will be lost.
所有的通信将会中断
Gosh, it's so narrow.
天啊 真狭窄
Yeah, you're right. It looks very tight indeed
对 看起来非常狭窄
but I do think it's worth going for.
但是我觉得值得一试
They only have enough air to dive for 30 minutes
他们的氧气只够呼吸三十分钟
so they need to find the fossils as fast as these treacherous tunnels will allow.
所以他们得尽快在危险的洞穴里找到化石
It's hard work swimming against this surge.
逆流潜泳很困难
With metres of solid rock above them,
由于他们头顶上都是巨石
escape to the surface is not an option.
直接逃上水面不是选择
It's pretty tight in here as well.
这里也是很狭窄
There are now 40 metres of tunnels behind them.
他们现在已经进入隧♥道♥里40米
They've got just 20 minutes of usable air left.
氧气还够20分钟
But then they emerge into a much bigger cave strewn with rocks.
但是他们进入了满是碎石的大洞里
The trick with finding these fossils is I'm not quite sure
我不是很清楚寻找化石有什么窍门
what to look for because there's just loads of boulders.
因为这里都是大石头
Well, we spot them by looking for something exactly like that.
我们就找这样的石头
Oh, hey!
嘿
There's a great depression in that one.
这块石头的凹痕很大啊
Looks exactly like the markings of a cockle, doesn't it? See?
看起来像是海后壳的斑纹吧？
That's exactly what we want,
我们就要这个
an indication that there is something more enticing inside.
有迹象表明里边有更加迷人的东西
This is a fossil brachiopod,
这是腕足动物的化石
a type of shellfish that lived over 300 million years ago.
是一种生活在三亿年前的贝类动物
It's an important clue to the Southern Ocean's past.
这是了解南海的过去的重要线素
Look at that one.
看那个
It looks like a mollusc almost, it looks something like a scallop.
看起来像是软体动物 是干贝
I think that's probably enough. It's quite heavy, that.
足够了 很沉了
I'm just going to put some air in this bag and lift them a little bit.
我要在这个袋子装上一些空气让它拾起袋子
They're too heavy for us to swim it up.
太重了 带着袋子不好游上去
Perfect, come on, buddy.
太好了 伙计
Paul, surface. This is Lucy. Have you found the fossils. Over?
保罗 我是露西找到化石了吗？完毕
Yeah, hi, Lucy, we're about to send her up actually.
找到了 露西 我们就要送上去了
Here she goes!
上去了
Here they are, here they are!
他们来了
You've got them? Here they are.
接到化石了吗？ 在这里
Wow, well done.
好样的
Was it good, was it good? Oh, it was a great dive.
有用吗？ 出色的潜水
There's the one, there it is. You can see pretty much
就是这个 看得很清楚
every crenulation of the shell.
贝壳每个齿状
Yeah, that's fantastic. I wonder, can we hit into these?
太棒了 不知道能不能砸开它
You might find... We're just going to stick our masks on quick
你会发现…我们得戴上面具
so look out for your eyes, Lucy.
当心眼睛 露西
That is a beauty. You can see the real delicate pattern in the shell.
太漂完了 可以看到贝壳里的花绞
What is it?
是什么？
Those are brachiopods
是腕足动物
and they used to be very, very abundant
它们在浅海里有很多
in sort of shallow seas, basically where you find a lot of mussels now.
就像蚌一样
But there's something else that's remarkable about these fossils.
但是这些化石还有其它的奥秘
They're identical to fossils found in Antarctica, almost 2,000 miles away,
它们和在2000英里外的南极洲发现的化石一样
clear evidence that this coast and Antarctica were once joined together.
显然 这证明这个海岸和南极洲原来是结合在一起的
So as Tasmania split from the Antarctic,
所以塔斯马尼亚岛是从南极洲脱高出来的
that was the birth of the Southern Ocean and we've found evidence of it.
这就是我们所找到的能证明南海的诞生的证据
The separation of these two land masses
两块大♥陆♥开始脱高
started around 53 million years ago.
始于5300万年前
They took 15 million years to tear apart.
它们用了1500万年才分开
This was the final stage in the Southern Ocean's formation
这是南海形成的最终阶段
and it created a body of water
创造了一个水体
with some of the most unpredictable weather in the world.
具有世界上最难以预测的天气
It feels like five minutes ago it was a beautiful day.
五分钟前还是好天气
You can't guarantee a day's perfect weather here in the Southern Ocean.
但是你无法保证南海这里一整天都是好天气
Yeah, just as soon as we turn around we get more weather coming in
是的 刚转身就风云突变
and that's exactly what's happened
就是这么回事
so we are going to have to pull out of here 'cause it's going to be rough.
我们要离开这里了 不然会很辛苦的
It's amazing. I mean, I knew it was going to change quick,
太神奇了 我就知道天气会突变
but maybe not quite that quick.
但是也许没那么快
From now it'll be a bit dodgy and then it'll ease off again.
从现在起 雨会有点涪花然后又减缓
Ease off? Yeah.
减缓 是的
As you can see there is clear sky coming again now.
现在天空又要放睛了
The extreme weather is largely caused by one uniQue feature.
极端天气主要是由一个特点造成
With the South Pole at its centre, the winds and waves of the Southern Ocean
南海以南极点为中心 它的风浪
circle continuously eastward without any land to slow them down.
不停往东循环 没有陆地的遮挡
Here, the world's longest current flows around the globe for 1 3,000 miles,
这里 世界最长的洋流在全球横行长达13000英里
driven by the world's strongest winds.
由世界上最猛烈的大风驱动
It creates the notorious Roaring Forties from 40 to 50 degrees south.
它在南纬40到50度处创造了臭名昭著的咆哮西风带
Even today these often violent waters
就算是现在 这些凶猛的水域
keep much of Tasmania virtually inaccessible.
依然让塔斯马尼亚岛难以接近
The south-western tip is home to some biZarre sea creatures,
西南端是一些海洋怪物的家
so difficult to reach that they've barely been studied.
那里难以进入 所以它们几乎没有被研究过
However, the team is hoping to do just that.
但是 探险队希望能做到
But to get there the weather will have to be perfect.
但是要想去那里 天气一定要很好
We've got probably a chance here of a two or three day decent weather window,
我们可能有两三天的好天气
and I'm not sure if, in our expedition period, we're going to get that again.
我不确定 在我们探险期间我们还会再进去
But I think it would be such a good use of time if we took this weather window
但是我觉得 我们最好还是好好利用现在的好天气
and Tooni and me went round to the southwest
托妮和我绕道西南角
and got the target of the sunken valley because it's a remote spot.
找到凹陷谷的目标因为那是很偏远的地点
It strikes me as such a unique place
我觉得它是一个独特的地方
that if we've got the opportunity to go now, we should just grab it.
要是我们现在抓住机会去那里的话我们应该可以下去
But what that would mean though is that you two then could get on
但是与此同时 你们两个
with the other expedition targets based from here.
可以开展其它的探险 从这里寻找目标
We could push off and try and get the sunken valley done
我们高开这里 进入凹陷谷
and then link up again in two or three days.
然后两三天后再碰头
Yeah. That's a good tactic.
好战术
Thanks, guys, I'll give you a hand. What's first?
谢谢你们 我来帮你们先做什么？
Tooni and Paul are heading for a place known as the sunken valley.
托妮和保罗朝着凹陷谷出发
Here, deep sea animals, normally living hundreds of metres below the surface,
通常生活在几百米深海的海洋生物
can be found thriving in shallow water.
在这里可以在浅海里找到
The deep sea is so inaccessible, it's so difficult to get to,
深海运不可及 难以进入
it's so difficult to work in the deep sea, you know.
在深海开展工作很难
And so being able to get to the sunken valley
所以进入凹陷谷
and to be able to personally witness what's happening
亲自见证那里的情况
in a deep sea environment in six or seven metres of water, it's my ideal.
在六七米深的浅海里看到深海环境是我的理想
Their journey takes them far away from civilisation.
他们的旅程使得他们远高文明
My first impressions are very much that Tasmania is an untouched place.
我的第一印象就是塔斯马尼亚岛运不可及
I mean, the water's clean, the air feels clean and fresh.
这里海水干净 空气洁新
You know, round on the southwest out there, there's no access at all.
西南角那里根本就无法进入
And it's a remote, pristine, true wilderness down there.
这下边是荒凉的 质朴的 真实的狂野
They round the southwest tip of Tasmania.
他们绕到塔斯马尼亚岛的西南角
Here the sheltered waters of Bathurst Channel
巴瑟斯特运河的保护水域
lead to the final passage into the sunken valley.
是通往凹陷谷的最后通道
Well, we're here. Look, we've just slowed down. We're here.
我们到了 看啊 我们放慢速度
This is our site, this is our first site.
这就是我们的第一个点