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[探索发现] 【整理】2010-02-12 地球的起源 EarthMade—6

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[探索发现] 【整理】2010-02-12 地球的起源 EarthMade—6

本帖最后由 sylvia_qian 于 2010-2-15 14:48 编辑

 

  How The Earth Was Made  

The series of HOW THE EARTH WAS MADE travels the globe to reveal the geological processes that have shaped our planet. We will look at a single location and examine how the features that we see today have formed over millions of years—whether by colliding continents, volcanic eruption or the abrasive power of vast ice sheets. These processes, which intimately affect the way we live today, have been lost in the mists of time. Using the clues that were left behind, combined with expert evidence from geologists in the field, this series rolls back the millennia to see how the slow but immensely powerful forces of geology have shaped our world.

 

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【整理】sylvia_qian

For refence only

 

-Sand travels slowly and doesn’t go all that far, but the finer particles will actually travel further, and so dust-size particles actually can get carried out into the Atlantic.

 

The Sahara is the largest source of dust on the planet. 500 million tons of it ends up in the Atlantic every year. Some of it reaches as far as Florida and creates spectacular red sunsets. But much of it, settles on the ocean floor, are treasure trove of information about the Sahara’s past.

 

-What’s wonderful about work with the ocean sediments is that they capture everything, they are this very faithful recorder of the sediments had raining down from the surface.

 

In 1995, deMenocal drilled down into the ocean floor through layers of mud, dating back millions of years. Each layer of sediment is like a time capsule. Shallow levels show plenty of this dust blown over from the desert. So deMenocal extracted deeper core samples from over a million years ago. Still, there was desert dust. Finally, he dug down to a layer that was laid down 3 million years ago, and there, the dust finally stopped. It had taken a voyage to the ocean floor to uncover the turning point from human tropical landscape into searing desert.

 

-That’s a pretty amazing change, you don’t think of something as large and expansive and fixed as the Sahara Desert, as being something capable of such profound changes. And yet, this is what the geologic record was telling us.

 

deMenocal had finally solved the riddle of the sands. The Sahara has been a desert wasteland for 3 million years.

 

In the search to discover the age of the Sahara, geologists have unearthed two startling clues. Yardangs showed that windblown sand has been blasting across the desert for at least 1 million years. Deep-sea cores give a more exact date. The Sahara first turned from swamp to sand 3 million years ago. From that moment on, the Sahara became the searing wasteland we see today. It seemed that geology alone could explain the creation of the world’s largest desert. Then, a new radar, fitted to the space shuttle revealed a striking clue that the desert once harbored a slash of green across its burning sands.


 

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Homework

-Sand travels slowly and doesn’t go all that far. But the final particles will actually travel further. And so dust-size particles actually can get carried out into the Atlantic.

The Sahara is the largest source of dust on the planet. 500 million tons of it ends up in the Atlantic every year. Some of it reaches as far as Florida and creates spectacular red sunsets. But much of it settles on the ocean floor, a treasure troll of information about the Sahara’s past.

-What’s wonderful about what were the ocean settlements are they capture everything, they are very faithful record of the settlement set raining down from the surface.

In 1995, de** droll down into the ocean floor, droll layers of mud dating back millions of years. Each layer of settlement is like a time capsule. Shallow levels show plenty of this dust blown over from the desert. So de** extracted deeper cause samples from over a million years ago. Still, there was desert dust.

Finally, he dug down to a layer that was laid down three million years ago, and there the dust finally stopped. It’d taken a voyage to the ocean floor to uncover the turning point from human tropical landscape into searing desert.

-It’s a pretty amazing change. You don’t think that something as large, expensive, and fixed as the Sahara Desert as being something capable of such profound changes, and yet this is what geology is telling us.

The de** had finally solved the riddle of the sands, the Sahara has been a desert, wasteland for three million years.

In the search to discover the age of the Sahara, geologists unearth two startling clues: yardangs show that wind blown sand has been blasting across the desert for at least one million years; deep sea cores give more exacting, the Sahara first turn from swamp to sand three million years ago.

From that moment on, the Sahara became the searing wasteland we see today. It seems that geology alone could explain the creation of the world’s largest desert. Then a new radar fit to the space shadow reveal the striking clue that the desert once harbored a slash of grim across its burning sands.
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hw

Sand travel slowly and doesn’t go all that far, but the finer particules will actually travel further, and so dust size particles actually can get carried out into the Atlantic.

The Sahara is the largest source of dust on the planet. 500 million tons of it ends up in Atlantic every year. Some of it reaches as fall as Florida and creates spectacular red sunsets. But much of it, settles on the ocean floor, are treasure trove of information about the Sahara’s past.

What’s wonderful about working with the ocean sediments is that they capture everything, they are these very faithful recorder of the sediments had raining down from the surface.

In 1995, / drilled down into the ocean floor through layers of mud, dating back millions of years. Each layer of sediment is like a time capture. Shallow levels show plenty of these dust blown over from the desert. So / extracted deeper core samples from over a million years ago. Still, there was desert dust. Finally, he dug down to a layer that was lay down 3 million years ago, and there, the dust finally start. It had taken a voyage to the ocean floor to uncover the turning point by human tropical landscape into searing desert.

That’s a pretty amazing change, you don’t think of something as large and expansive and fixed as the Sahara desert. As being something capable of such profound changes. And yet, this is what the geologic record was telling us.

The / had finally solved the riddle of the sands. The Sahara has been a desert waste land for 3 million years.

In the search to discovery the age of the Sahara, geologists have unearthed two startling clues. Yadands show wind blown sand has been blasting across the desert for at least 1 million years. Deep sea cores give more exact date. The Sahara first turned from swamp to sand 3 million years ago. From that moment on, the Sahara became the searing waste land we see today. It’s seemed the geology alone could explain the creation of the world’s largest desert. Then, a new radar, fitted to the space shuttle revealed a striking clue that the desert once harbored a slash of green across its burning sands.
1

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从不满足只做一朵追随太阳的葵花. 于是,选择行走,永不停歇的行走. 因为,人,总归是要有信念的. 于是,我相信, 在经历千山万水,长途跋涉之后, 自己终会触碰到最直接最温暖的阳光.

实现无障碍英语沟通
Homework
Then ,travel slowly ,and doesn’t go all that far ,but the final part goes , who actually travel further ,and saw dust ????partakers actually can get carried out into the Atlantic slowly .this aero is the largest soils of dust on the plant .500 millions towns in it ends up  in the Atlantic every year .some of the reaches’ far explore and creates particular red sunsets .
But much of settlers on the ocean flow ,a treasure information about this aero’s past . what’s wonderful about what the ocean segment is they capture everything ,they ,there’re ,  this is very fame for recorder , they set the raining down from the surface . In 1995 , demagnicour??  dropped down into the ocean flour through the layers of mud dating back to millions of years .Each layer of segment is like a time capsule , shower lever show plenty of this dust blown over from  the desert . so  demagnicour??  extracted deep records  from sanvor for over million years ago .still , there was desert  dust . finally he dugged  down to a layer that was   laid down to 3million years ago ,and there , the dust finally stopped .it’is taken avoid to the ocean flour to the uncovered turning point to the human draft of landscape into serene desert .
That’s a pretty amazing change .you don’t think of something as large and expensive and fixed as they  the harangued desert ,as being something capable of such profound changes , and it is the   geology telling us . the demagnicour has finally saw the radio of the sands ,this aero has been desert of waste land for 3million years .
In the surge to discover the age of this aero ,geologists two startling clues .Yardangs show that the wind blow sand has been blasting across the desert for at least 1 million years .Deep-sea cores give more exact ,this aero first turn from swarm into sands 3million years ago . from now moment on  ,this aero became serene desert we see today . It seemed the geology alone could explain the creation of the world’s largest desert .then ,a new radio of fidded ??to space ???? reveal the striking  clue that  the desert once harbor a slash of breed  across to ???burning sands .
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[Homework]2010-02-12 地球的起源 EarthMade—6

Sand traveled slowly and doesn't go all that far. But the finer particles will actually travel further. And so dust-sized particles actually can get carried out into the Atlantic.

The Sahara is the largest source of dust on the planet. 500 million tons of it ends up in the Atlantic every year. Some of it reaches as far as Florida and creates spectacular red sunsets. But much of it settles on the ocean floor, a tressure trove of information about the Sahara's past.

What's wonderful about work with the ocean settlement is that they capture everything, they're thus very faithful recorder of the settlements * down from the surface.

In 1995, DeMenocal drilled dowm into the ocean floor through layers of mine dating back millions of years. Each layer of settlement is like a time capsule. Shallow levels show plenty of this dust blown over from the desert. So DeMenocal extracted deeper core samples from over a million years ago. Still, there was desert dust. Finally, he dug down to a layer that was laid down 3 million years ago and there, the dust finally stopped. It's taken a voyage to the ocean floor to uncover the turning point from human tropical  landscape into searing desert.

That's a pretty amazing change. We don't think of something as large and expansive and fixed as the Sahara desert as being something capable of such profound changes. And, yeah, this is what the geological record is telling us.

DeMenocal has finally solved the riddle of the sand. The Sahara has been a desert wasteland for 3 millon years. In the search to discover the age of the Sahara, geologists have unearthed two startling clues. Yardangs show that wind-blown sand has been blasting across the desert for at least one million years. Deep-sea cores gives a more exacting. The Sahara first turn swamp to sand 3 million years ago. From that moment on, the Sahara became the searing wasteland we see today. It seems that geology alone could explain the creation of the world's largest desert. Then, a new radar fitted to the space shuttle reveal a striking clue that the desert once harbored a slash of green across its burning sands.

This post was generated by put listening repetition system,  Check the original dictation thread!
on csufor

Sand travel slowly and doesn’t go all that far, but the finer particules will actually travel further, and so dust size particles actually can get carried out into the Atlantic.

The Sahara is the largest source of dust on the planet. 500 million tons of it ends up in the Atlantic every year. Some of it reaches as far as Florida and creates spectacular red sunsets. But much of it, settles on the ocean floor, are treasure trove of information about the Sahara’s past.

What’s wonderful about working with the ocean sediment is that they capture everything, they are this very faithful recorder of the sediments had raining down from the surface.

In 1995, / drilled down into the ocean floor through layers of mud, dating back millions of years. Each layer of sediment is like a time capture. Shallow levels show plenty of this dust blown over from the desert. So / extracted deeper core samples from over a million years ago. Still, there was desert dust. Finally, he dug down to a layer that was lay down 3 million years ago, and there, the dust finally start. It had taken a voyage to the ocean floor to uncover the turning point from human tropical landscape into searing desert.

That’s a pretty amazing change, you don’t think of something as large and expansive and fixed as the Sahara desert. As being something capable of such profound changes. And yet, this is what the geologic record was telling us.

The / had finally solved the riddle of the sands. The Sahara has been a desert waste land for 3 million years.

In the search to discovery the age of the Sahara, geologists have unearthed two startling clues. Yadands showed that wind blown sand has been blasting across the desert for at least 1 million years. Deep sea cores give more exact date. The Sahara first turned from swamp to sand 3 million years ago. From that moment on, the Sahara became the searing waste land we see today. It’s seemed the geology alone could explain the creation of the world’s largest desert. Then, a new radar, fitted to the space shuttle revealed a striking clue that the desert once harbored a slash of green across its burning sands.
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on skywalk

-Sand travels slowly and doesn’t go all that far, but the final particles will actually travel further, and so dust-size particles actually can get carried out into the Atlantic.

The Sahara is the largest source of dust on the planet. 500 million tons of it ends up in the Atlantic every year. Some of it reaches as far as Florida and creates spectacular red sunsets. But much of it, settles on the ocean floor, are treasure trove of information about the Sahara’s past.

-What’s wonderful about work/ with the ocean sediments is that they capture everything, they are this very faithful recorder of the sediments had raining down from the surface.

In 1995, deMenocal drilled down into the ocean floor through layers of mud, dating back millions of years. Each layer of sediment is like a time capsule. Shallow levels show plenty of this dust blown over from the desert. So deMenocal extracted deeper core samples from over a million years ago. Still, there was desert dust. Finally, he dug down to a layer that was laid down 3 million years ago, and there, the dust finally start. It had taken a voyage to the ocean floor to uncover the turning point from human tropical landscape into searing desert.

-That’s a pretty amazing change, you don’t think of something as large and expansive and fixed as the Sahara Desert, as being something capable of such profound changes. And yet, this is what the geologic record was telling us.

deMenocal had finally solved the riddle of the sands. The Sahara has been a desert wasteland for 3 million years.

In the search to discover/ the age of the Sahara, geologists have unearthed two startling clues. Yardangs showed that windblown sand has been blasting across the desert for at least 1 million years. Deep-sea cores give a more exact date. The Sahara first turned from swamp to sand 3 million years ago. From that moment on, the Sahara became the searing wasteland we see today. It/ seemed that geology alone could explain the creation of the world’s largest desert. Then, a new radar, fitted to the space shuttle revealed a striking clue that the desert once harbored a slash of green across its burning sands.
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on qianqian

-Sand travels slowly and doesn’t go all that far, but the finer particles will actually travel further, and so dust-size particles actually can get carried out into the Atlantic.

The Sahara is the largest source of dust on the planet. 500 million tons of it ends up in the Atlantic every year. Some of it reaches as far as Florida and creates spectacular red sunsets. But much of it, settles on the ocean floor, are treasure trove of information about the Sahara’s past.


-What’s wonderful about work/ with the ocean sediments is that they capture everything, they are this very faithful recorder of the sediments had raining down from the surface.

In 1995, deMenocal drilled down into the ocean floor through layers of mud, dating back millions of years. Each layer of sediment is like a time capsule. Shallow levels show plenty of this dust blown over from the desert. So deMenocal extracted deeper core samples from over a million years ago. Still, there was desert dust. Finally, he dug down to a layer that was laid down 3 million years ago, and there, the dust finally stopped. It had taken a voyage to the ocean floor to uncover the turning point from human tropical landscape into searing desert.

-That’s a pretty amazing change, you don’t think of something as large and expansive and fixed as the Sahara Desert, as being something capable of such profound changes. And yet, this is what the geologic record was telling us.

deMenocal had finally solved the riddle of the sands. The Sahara has been a desert wasteland for 3 million years.

In the search to discover/ the age of the Sahara, geologists have unearthed two startling clues. Yardangs showed that windblown sand has been blasting across the desert for at least 1 million years. Deep-sea cores give a more exact date. The Sahara first turned from swamp to sand 3 million years ago. From that moment on, the Sahara became the searing wasteland we see today. It/ seemed that geology alone could explain the creation of the world’s largest desert. Then, a new radar, fitted to the space shuttle revealed a striking clue that the desert once harbored a slash of green across its burning sands.
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普特听力大课堂

[Homework]2010-02-12 地球的起源 EarthMade—6

Sand travels slowly and doesn't go all that far,but the final particles goes.We actually travel further.So dust size particles actually can get carried out into the Atlantic.The Sahara is the largest source of dust on the planet.Five hundred million tons of it end up in the atlantic every year.Some of it reaches as far as Florida and creates spectacular red sunsets.But much of it settles on the ocean floor ,a treasure troll of information about the Sahara 's past.
What’s wonderful about what were the ocean settlements are they capture everything, they are very faithful record of the settlement set raining down from the surface.
In 1995,Demeaning cow drewn down into the floor through layers of mud dating back to millions of years.Each layer of the sediment is like a time capture.Shallow level shows plenty of the dust was blowed over from the desert.So Demeaning cow extracted a deeper cool sample from about a million years ago.Still ,it was desert dust.Fianlly he dug down into  the layer that was lay down three million years ago.And there ,the dust finally stopped.It takes  a voyage into the ocean floor to uncover the turning point from human tropical landscape into searing desert.
That's a pretty amazing change .You don't think of something as large ,expansive and fixed as the Sahara desert ,as being something capable of such profound changes.And yet this is what the geologic record was telling us.
Demeaning cow has finally solve the riddle of the sand.The Sahara has been a desert waste land for three million years.
In the search to discover the age of the Sahara,geologists have unearthed  two startling clue.
Yaoda,shows that the wind-blowing sand has been blasting across the desert for at least one billion years.
Deep sea core gives more exact dates.The Sahara first turn from swamp to sand three million years ago.From that moment on ,the Sahara became the searing waste land we see today.I seems the geology alone can explain the creation of the world's largest desert.Then a new radar, fitted to the space shuttle revealed the striking clue that the desert once harbored a slash of green across its burning sands.

This post was generated by put listening repetition system,  Check the original dictation thread!
好栏目推荐之美国口语俚语
Sand travels slowly and doesn't go all that far,but the final particles goes.We actually travel further.So dust size particles actually can get carried out into the Atlantic.The Sahara is the largest source of dust on the planet.Five hundred million tons of it end up in the atlantic every year.Some of it reaches as far as Florida and creates spectacular red sunsets.But much of it settles on the ocean floor ,a treasure troll of information about the Sahara 's past.

What’s wonderful about what were the ocean settlements are they capture everything, they are very faithful record of the settlement set raining down from the surface.

In 1995,Demeaning cow drewn down into the floor through layers of mud dating back to millions of years.Each layer of the sediment is like a time capture.Shallow level shows plenty of the dust was blowed over from the desert.So Demeaning cow extracted a deeper cool sample from about a million years ago.Still ,it was desert dust.Fianlly he dug down into  the layer that was lay down three million years ago.And there ,the dust finally stopped.It takes  a voyage into the ocean floor to uncover the turning point from human tropical landscape into searing desert.

That's a pretty amazing change .You don't think of something as large ,expansive and fixed as the Sahara desert ,as being something capable of such profound changes.And yet this is what the geologic record was telling us.

Demeaning cow has finally solve the riddle of the sand.The Sahara has been a desert waste land for three million years.

In the search to discover the age of the Sahara,geologists have unearthed  two startling clue.

Yaoda,shows that the wind-blowing sand has been blasting across the desert for at least one billion years.

Deep sea core gives more exact dates.The Sahara first turn from swamp to sand three million years ago.From that moment on ,the Sahara became the searing waste land we see today.I seems the geology alone can explain the creation of the world's largest desert.Then a new radar, fitted to the space shuttle revealed the striking clue that the desert once harbored a slash of green across its burning sands.

[Homework]【整理】2010-02-12 地球的起源 EarthMade—6

HMW
sand travel slowly and dosen't go that far, but the final part goes who actually travel futher, and so dustsize part goes actually carry out into the Atlantic.
The sahara is lagest source of dust on the planet,   500million tons of it ends up Atlantic every year, some of it reaches far to Florida and  creats spectacular red sunsets. But much of it settles on the oceam floor, a treasure tool infermation about sahara past
what's wonderful about what were the ocean are they capture everything, they are very faithful record down the surface.
in 1995,dexx  drew down into the ocean floor, they are dating back million of years, each layer of  sediment is like a time capsuel, Shallow levels show plenty of this dust,over from desert, so extected  deeper core samples million years ago, still,there was desert dust.Finally he dug down to the layer   that was lay down 3million years ago and there the finally dust stopped. It's taken a voyage to the ocean floor  to uncover the turning point from the human tropical landscape into season desert
that's a pretty amazing change, you don't think something as large and expensive and fixed as the sahara desert, as being something captable of such proxx changes,  and yet this is geologic was telling us.
had finally solved the riddle of sands,and the sahara has been a desert weastland for 3 million years.
in the search of discovery the age of sahara, geologist two starting of clues, yardan showed that wind blow sand has been blasting across the desert for at least 1million years,deep sea cores give more  exact date, the sahara first turned from swamp to sand 3million years ago, from that moment on, the sahara became the searing weastland we see today, it seemed that geology  along could explaintion the world largest desert, than, a new rader,xx to the space shuttle   review the stracking clue the desert once harbored a slesh of green across its buring sand.



This post was generated by put listening repetition system,  Check the original dictation thread!
HOMEWORK

“Sand travels slowly and doesn’t go all that far, but the finer particles will actually travel further. And so dust size particles actually can get carried out into the Atlantic.”

The Sahara is the largest source of dust on the planet. 500 million tons of it ends up in the Atlantic every year. Some of it reaches as far as Florida and creates spectacular red sunsets. But much of it settles on the ocean floor, a treasure trove of the information about the Sahara’s past.

“What’s wonderful about work with the ocean sediments is that they capture everything. They are this very faithful recorder of the sediments had raining down from the surface.”

In 1995, deMenocal drilled down into the ocean floor through layers of mud dating back millions of years. Each layer of sediment is like a time capsule. Shallow levels show plenty of this dust blown over from the desert. So deMenocal extracted deeper core sample from over a million years ago. Still there was desert dust. Finally he dug down to a layer that was laid down three million years ago. And there the dust finally stopped. It had taken a voyage to the ocean floor to uncover the turning point from human tropical landscape into searing desert.

“That’s a pretty amazing change. You don’t think something as large and expansive and fixed as the Sahara Desert, as being something capable of such profound changes, and yet this is what the geological record was telling us.”

DeMenocal had finally solved the riddle of the sands. The Sahara has been a desert wasteland for three million years.

In the search to discover the age of the Sahara, geologists have unearthed two startling clues. Yardang showed that wind blown sand has been blasting across the desert for at least 1 million years. Deep-sea cores give a more exact date. The Sahara first turned from a swamp to sand three million years ago. From that moment on, the Sahara became the searing wasteland we see today. It seemed that geology alone could explain the creation of the world’s largest desert. Then a new radar fitted to the space shuttle revealed the striking clue that de desert once harbored a slash of green across its burning sands.
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Sand travels slowly and doesn’t go all that far, for the finer particles were actually travel further, and so dust size particles actually can get carried out into the Atlantic.
The Sahara is the largest source of dust on the planet, 500 millions tons of it ends up in the Atlantic every year, some of it reaches as far as Florida and creates spectacular red sunsets, but much of it, settles on the ocean floor, a treasure trove of information about the Sahara’s past.
What’s wonderful about work with the ocean sediments is that they capture everything, they, there is very faithful record of the sediment had raining down from the surface.
In 1995, deMenocal drilled down into the ocean floor, through layers and mud dating back millions of years, each layer of sediments is like time capsule, shallow levels show plenty of this dust blown over from the desert, so deMenocal extracted the deeper core samples from over a million years ago, still there was desert dust. Finally he dug down to a layer that was laid down three million years ago, and there dust finally stopped. It had taken a voyage to the ocean floor to uncover the turning-point from human tropical landscape into searing desert.
That’s pretty amazing change, you don’t think of something as large expansive and fixed as the Sahara desert as being something cable of such profound changes, and yet this is what geologic record was telling us.
DeMenocal had finally solved the riddle of the sands, the Sahara has been the desert wasteland for three million years. In the search to discover the age of the Sahara, geologists have unearthed two startling clues, Yardang show that wind blow sand has been blast(强劲气流) across the desert for at least one million years. Deep sea cores give more exact day that Sahara first turned from swamp to sand three million years ago. From that moment on, the Sahara became searing wasteland we see today, it seemed that geology alone could explain the creation of the world’s largest desert, then a new radar fitted it the space shuttle reveal the striking clue that the desert once harbored a slash of green across its burning sands.
sands travel slowly and doesn't go all that far, but the final particles would actually
travel further, and so dust size particles actually can get carried out into the atlantic,

the sahara is the largest source of dust on the planet, 500 million tons of it ends up
in the atlantic every year, some of it reaches as far as florida, and create spectacular
red sunset, but much of it settles on the ocean floor, a treasure trove of information
about the sahara's past.

"what's wounderful about work with the ocean sediments is that they capture everything,
they are this very faithful record of the sediment xxx raining down from the surface."

in 1995, DeMandcal drill down into the ocean floor, through the layer of mud dating back
millions of years, each layer of sediment is like the time capture, shallow levels show
plenty of these dust blown over from the desert, so the Demandcal extracted deeper core
samples from over a million years ago, still there was desert dust, finally he dug down
to a layer that was laid down 3 million years ago, and there the dust finally stopped,
it had taken a voyage to the ocean floor to uncover the turning point from human tropic
landscape into serene desert.

"that's a pretty amazing change, you don't think something as large and expensive
and fixed as the sahara desert, as being something capable of such profound change,
and yet this is what the geologic record was telling us"

Demandelcal had finally solved the riddle of the sands, the sahara has been a desert
waste land for 3 million years.

in the search to discover the age of sahara, geologists have unearthed two startling
clues, "Yandangs" show that wind-blown sand has been blasting across the desert for
at least one million years, deep sea cores give more exact date, the sahara first
turn from swamp to sand 3 million years ago, from that moment on, the sahara became
the serene wasteland we see today, it seems the geology alone could explain the creation of the world largest desert, then a new radar, fitted to the space shuttle
review the striking clue that the desert once harbored a slash green across its  burning sand.
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