In between are several layers of dense shale rock.

中间是几层致密的页岩。

The land at the bottom of the sea was black shale rock.

海底的土地是黑色页岩岩石。

That shale is now at the bottom of the Badlands.

这个页岩现在位于荒地的底部。

Experts believe Europe might have trillions of cubic meters of shale gas. Shale is a kind of rock.

专家认为欧洲可能有数万亿平方米的页岩气，页岩是种岩石。

A wave of consolidation could be coming to the US shale oil industry.

美国页岩油行业可能迎来合浪潮。

Southeast shore of Lake Erie, lots of shale on the cliffs.

伊利湖东南岸，悬崖上有大量页岩。

It is often used to recover these fossil fuels from rock called shale.

这种技术通常用于从页岩中提取石化燃料。

What are the economic realities that are really giving shale executives pause here?

是什现实让页岩行业的高管们犹豫不决？

So the Burgess Shale specimens weren't so spectacular after all.

所以，布尔吉斯页岩标本原来并非那不可思议。

The shale deposit there has proven to be a treasure for the study of ancient life.

当地页岩矿床已被证明是研究古代生命的宝库。

The real wild card is shale.

真正的不确定性因素是页岩。

Tommotian and Burgess Shale formations give clues about Precambrian evolution.

早间，Tommotian和伯吉斯页岩化石群为前寒武纪进化提供了线索。

He said agriculture and oil and gas from rocks, called shale, can help the economy.

他说，农业和来自页岩的石油和天然气可以帮助发展。

Chevron's boss remarked that " the shale game has become a scale game."

“页岩油开采已然成为个规模游戏。”

It also reveals the idea that shale oil might guarantee energy security to be a fallacy.

这也揭示了页岩油可能保障国家能源安全的观点是种谬论。

When they do, some of the new supplies will be used to generate electricity.

等这些国家开始开采时，新供应页岩气中的部分将用于发电。

So analysts view this as a big step in consolidating the shale oil industry in the US.

分析师认为，这是合美国页岩油行业的大步。

But do you think we'll see a renewed investment in shale eventually?

但你认为我们最终会看到对页岩的重新投资吗？

Concerns about earthquakes have also been raised in connection with the practice of hydraulic fracking to produce shale gas.

人们开始担心液压破碎法开发页岩的做法会导致地震。

Clay is also a rock; and when it has been pressed a great deal, it is called shale.

粘土也是种石头，过大力挤压之后，叫做“页岩”。