Slide Shows | Energy & Sustainability

Birth of an Ocean: The Evolution of Ethiopia's Afar Depression

Formation of an ocean is a rare event, one few scientists have ever witnessed. Yet this geophysical nativity is unfolding today in one of the hottest and most inhospitable corners of the globe. Visit the site in safety through this extraordinary photographic essay

  • Share
  • Email
  •  2 of 17  
AFAR DEPRESSION
thumb: AFAR DEPRESSION

AFAR DEPRESSION

This area marks the north end of the East African Rift, a3,500-kilometer-long zone of tectonic turmoil that is tearing the continent in two ( arrows on globe ) The detail shows a segment of the depression....[More]

GHOSTLY SALT DEPOSITS
thumb: GHOSTLY SALT DEPOSITS

GHOSTLY SALT DEPOSITS

Near Afdera volcano testify to ancient inundations in Ethiopia's Afar region. In the past 200,000 years the Red Sea flooded Afar's lowlands at least three times; the salt stayed behind as the seawater evaporated....[More]

RISING ABOVE
thumb: RISING ABOVE

RISING ABOVE

The highest point in sunken Afar is Erta Ale, or "smoking mountain" in the language of the local people. Erta Ale is the northernmost volcano in a long chain that follows the so-called East African Rift....[More]

LAKE OF LAVA
thumb: LAKE OF LAVA

LAKE OF LAVA

Atop Erta Ale is one of the earth's few quasi-permanent lava lakes. The flux of heat from the earth's interior is rarely sufficient to keep rock molten under the cooling effect of the atmosphere....[More]

LAKE OF LAVA
thumb: LAKE OF LAVA
LAKE OF LAVA Typically, though, blocks of basalt float like icebergs on the fiery liquid rock, which reaches 1,200 degrees C (2,190 degrees F). [Link to this slide]
Eitan Haddok
LAKE OF LAVA
thumb: LAKE OF LAVA
LAKE OF LAVA Most of the Afar people do not approach the volcano, because it is thought to harbor evil spirits. Seeing an Afar warrior on the volcano's summit is unusual; this man, Ibrahim, was my guide. [Link to this slide]
Eitan Haddok
LAKE OF LAVA
thumb: LAKE OF LAVA
LAKE OF LAVA Lava emerging from cracks in the lake is particularly spectacular at night, when the sight evokes the phantoms of local lore. [Link to this slide]
Eitan Haddok
HELLISH HEAT
thumb: HELLISH HEAT

HELLISH HEAT

One hundred kilometers north of Erta Ale, near the Eritrea border, is the Dallol crater. There molten magma simmering below the surface fuels a vast plumbing network of superheated water....[More]

HELLISH HEAT
thumb: HELLISH HEAT

HELLISH HEAT

The mineral sulfur produces the lemon-yellow color in this earthly palette ( left ); blended with the signature red of oxidized iron, the sulfur stains turn orange ( center )....[More]

LETHAL FUMES
thumb: LETHAL FUMES

LETHAL FUMES

The surreal landscape of the Dallol crater results as rain-water percolates deep underground, heats up as it contacts hot magma and rises to the surface through thick layers of salt, dissolving the salt as it travels....[More]

POISON OR ELIXIR?
thumb: POISON OR ELIXIR?

POISON OR ELIXIR?

Near reddish pools of bubbling-hot, iron-rich water, the strong odor of hydrocarbon is a telltale sign of danger. Animals sometimes stop for a drink--not realizing it will be their last....[More]

FATEFUL FLOODS
thumb: FATEFUL FLOODS

FATEFUL FLOODS

The salt sculptures on the opposite page and others that decorate Afar serve as a reminder that the birth of an ocean is not a singular event but rather an ongoing saga....[More]

FATEFUL FLOODS
thumb: FATEFUL FLOODS

FATEFUL FLOODS

When sea level dropped and Afar was once again cut off from the sea, the floodwaters evaporated. Wind and water sculpted the salty traces of these past inundations over the ensuing millennia, sometimes carving bizarre formations called salt mushrooms....[More]

FATEFUL FLOODS
thumb: FATEFUL FLOODS
FATEFUL FLOODS In other areas, alternating layers of salt and reddish marine sediment are visible in eroded canyon walls. [Link to this slide]
Eitan Haddok
SALT OF THE EARTH
thumb: SALT OF THE EARTH

SALT OF THE EARTH

Salty traces of past deluges give the modern people of Afar a modest means to benefit from their baked and barren homeland. These nomadic herders collect the salt by hand, wielding wooden stakes and hatchets to break the thick layers into manageable blocks....[More]

SALT OF THE EARTH
thumb: SALT OF THE EARTH
SALT OF THE EARTH The closest places to sell or exchange the salt are located in the Ethiopian highlands to the west--about a six days' walk for the camel caravans used to transport this unlikely export. [Link to this slide]
Eitan Haddok
MIRAGE OR HALLUCINATION?
thumb: MIRAGE OR HALLUCINATION?

MIRAGE OR HALLUCINATION?

Most years the greatest concern for the Afar people is finding adequate water. But the rains were unusually heavy in late 2006, and many of the salt fields remained flooded throughout my visit in January 2007....[More]

risk free title graphic

YES! Send me a free issue of Scientific American with no obligation to continue the subscription. If I like it, I will be billed for the one-year subscription.

cover image
ADVERTISEMENT

24 Comments

Add Comment
View
  1. 1. emil47 12:16 PM 9/17/08

    After me, these pictures compete in beauty with the best images taken by Hubble from Cosmos. What a pity that this beauty is constantly threatened by poverty and war!

    Reply | Report Abuse | Link to this
  2. 2. yanghuansailing 08:54 AM 9/29/08

    As for any beauty , if it is stained by politics and unpeace, it will be deteriorated and never displayed the orginal features any more.

    Reply | Report Abuse | Link to this
  3. 3. DrDu123 09:50 AM 9/29/08

    That has to be the dumbest first sentence ever published in SciAm.

    Reply | Report Abuse | Link to this
  4. 4. rdholland 11:01 AM 9/29/08

    How can the waters of the Red Sea rise and fall 80,000 years ago when the SUV was not even invented? How many times has Al Gore saved us from rising ocean levels?

    Reply | Report Abuse | Link to this
  5. 5. Trent1492 03:14 PM 9/29/08

    "How can the waters of the Red Sea rise and fall 80,000 years ago when the SUV was not even invented? "

    Could you point out to me who is saying the Earth's climate does not fluctuate over geological time? Geophysicist are very well aware that climate changes. They even have a mechanisms to explain these changes in climate. Why don't you go and read about Milankovitch cycles e.g.

    Reply | Report Abuse | Link to this
  6. 6. sunpeiaron 01:05 AM 9/30/08

    DSSSSSSSSS

    Reply | Report Abuse | Link to this
  7. 7. fire1fl 02:21 PM 9/30/08

    What an incredible exploration!!! Beautiful photos of a place I will likely not visit in my lifetime. Interesting that the primitive people of the region have no knowledge of the energy resource available to them - non-carbon geothermal energy that is almost unlimited.

    Reply | Report Abuse | Link to this
  8. 8. samuelEyassu in reply to fire1fl 06:10 PM 9/30/08

    It is vivid that lack of knowledge and laziness to read would lead one to write, qoute, "the primitive people of the region have no knowledge ..." in this thread.
    We 've an obligation to correct such erroneous streotypes.
    Do you know this is the place of human-origin? Where ancient civilization ignited? where modern civilization started?where you get ancient Ethiopic scripts of profound maths, astronomy and ethic and other philosphy thoughts written thousands years ago? Do you know this the place where modern architecture was invented? Do you know these people never exercised paganism?Do you know these "primitive people" are the first coloured people to defeat colonialism and fashism?
    No You don't. As your only source of information is CNN or the intentional hate bubbling in your head?
    Read brother\sister! Reading is a good stuff!
    The unfortunate manmade-natural events doesn't make people primitive!

    Reply | Report Abuse | Link to this
  9. 9. samuelEyassu 06:19 PM 9/30/08

    Thanks Eitan Haddok for all yor hard work!
    Also Thanks for adding this great article to the pool of human knowledge!
    Politely yours,
    Samuel

    Reply | Report Abuse | Link to this
  10. 10. abatireg eritrawiwelde 10:16 PM 9/30/08

    well said sami. Some people do not know any thing about the world. They only think they are the only people who are civilized,yet they are the dumpest people in the world. They do not know even the name of the state bordering them. The problem with them is they do not read. Had they done so they would know that source of civilization was the red sea area, where the great Lucy is from. I am sure they need some explanetion who this Lucy is. They won't believe that the first written scripts where from Axum.

    Reply | Report Abuse | Link to this
  11. 11. CLusterTim 11:19 PM 9/30/08

    Wow, Etheopia rocks dude. Beautiful place and people.

    Jiff
    www.privacy.es.tc

    Reply | Report Abuse | Link to this
  12. 12. gramethio 03:04 AM 10/1/08

    wel said Mr. Samuel, and I have nothing to add to it. I wish this ignorant could have thought of his vulgar words before pointing them to the people and nation that has contributed a lot than most of the nations in every respect, than his idols. I wonder how he managed to get into this website where little minded cretures like him don't bother much. Lastly, I would like to pass my appreciation to Eitan Haddok for his contributions and dedication to have taken all the hardships and introduce his observations to the world of intelects.
    G. Abesha

    Reply | Report Abuse | Link to this
  13. 13. maor in reply to fire1fl 08:30 AM 10/1/08

    "... the primitive people of that region..." What a refreshingly racist point of view.

    Reply | Report Abuse | Link to this
  14. 14. georgepradhan mb 08:40 AM 10/2/08

    = why did sci am reject my comment

    Reply | Report Abuse | Link to this
  15. 15. georgepradhan mb 08:56 AM 10/2/08

    Yes ,SamEyassu and Abatireg, appreciated . Reading makes a complete man. but grade 1 pseudo scientists like me need lots of material to read. but where is the time? was there nothing before Axum? As for climate changes Was the NPole not at Colombo and the equator round iceland once, if not due to wobble, then to a catastrophe, or shifts in the core centers? 2008 even BigBang is seeing modifications??? so what is knowlej? what dogma? ParallelUniverses say that right now there are other people jus like me typing this letter to you. Indian Vedas say this earth is the 14th one with 13 like me gone before ?All this is Illusion?

    Reply | Report Abuse | Link to this
  16. 16. North49 in reply to samuelEyassu 11:50 AM 10/2/08

    What strange and wierd place do you live? These people are barely out of the stone age, still have a magicical view of how the world works. My advice to you is to buy your plane ticket and take a lesson plan with you let us know how it goes. Just like everything else over time it all changes and you can't do anything about it. Naive innocence, arn't you lucky.

    Reply | Report Abuse | Link to this
  17. 17. jhboettcher 11:23 PM 10/3/08

    Would the red deposits between the salts be Halobacterium halobium residues? It is an extreme halophile. Near where I live in Oregon USA there are great lava deposits layered with organic residues which also make a red layer between the lava layers.
    I appreciate Mr. Eyassu's comments. Xenophobia is common to most human cultures, as is the ignorance which fuels such things, so sad to say. I always hope to keep the discussion scientific, but often this is most difficult. Being rational requires work. People are lazy.

    Reply | Report Abuse | Link to this
  18. 18. gaerbyl 04:51 PM 10/5/08

    Well, if the area is already sinking and will become an ocean, why not build a canal to let the water in now? This might slow down the wars in the region. We could auction off the right to name the new ocean on ebay with the proceeds to be used to improve the living conditions of the peoples around the infant ocean. Instead of giving the people a fish to feed them for a day, we could teach them to fish the new ocean to feed them for life. There would probably be a huge influx of tourists with money to spend who want to see the new ocean form. The locals could build a tourist trap (resort) to separate the tourists from their money. This would fuel the local economy and pay for schools, agricultural developement, and infrastructure for further developement.

    Reply | Report Abuse | Link to this
  19. 19. randy the monkey 08:50 AM 10/6/08

    the ocean is a wonderful place and we should keep it pure and clean no matter what.also check out my website to enjoy interesting sites from around the world.it is updated every 2-weeks.

    http://ran-the-monkey.livejournal.com/3805.html

    also click on previous entry button on the top left page.

    Reply | Report Abuse | Link to this
  20. 20. pnh 09:30 AM 10/6/08

    "Formation of an ocean is a rare event, one few scientists have ever witnessed."

    Precisely who are these scientists who have witnessed the formation of an ocean? Even if there are only a "few," the existence of any such long-lived superbeings would seem like quite a journalistic scoop. I think Scientific American should come clean with us.

    Reply | Report Abuse | Link to this
  21. 21. Dana 08:13 AM 10/8/08

    I enjoyed these amazing photos and article very much!
    (I subscribe to Scientific American's printed issue).
    Thanks. Also I can tell you that the word 'afar' means
    land, dirt, dust - in Hebrew.
    Sincerely,
    Israeli subscriber

    Reply | Report Abuse | Link to this
  22. 22. yadamzer 01:40 AM 12/30/09

    if it is true, we are lucky!

    Reply | Report Abuse | Link to this
  23. 23. yadamzer 01:42 AM 12/30/09

    IF IT IS TRUE WE ARE LUCKY !

    Reply | Report Abuse | Link to this
  24. 24. orion 09:22 AM 6/27/10

    SciAm's rhetorical style is increasingly popular in tone, albeit civilized and entertaining. One would expect this rhetoric in an esteemed popular magzine like National Geographic. In a scientific journal, however, I am looking for something more than the obvious, more than great photography, certainly more than "personal experiences" of the reporter. I am looking for detailed scientific explanations of phenonmena and that I found lacking in this otherwise very enjoyable photo essay.

    Reply | Report Abuse | Link to this
Leave this field empty

Add a Comment

You must sign in or register as a ScientificAmerican.com member to submit a comment.
Click one of the buttons below to register using an existing Social Account.
Advertisement

Email this Article

X
Scientific American Magazine

Subscribe Today

Save 66% off the cover price and get a free gift!

Learn More >>

X

Please Log In

Forgot: Password

X

Account Linking

Welcome, . Do you have an existing ScientificAmerican.com account?

Yes, please link my existing account with for quick, secure access.



Forgot Password?

No, I would like to create a new account with my profile information.

Create Account
X

Report Abuse

Are you sure?

X

Institutional Access

It has been identified that the institution you are trying to access this article from has institutional site license access to Scientific American on nature.com. To access this article in its entirety through site license access, click below.

Site license access
X

Error

X

Share this Article

X