Ancient Continent FOUND under Indian ...

Ancient Continent FOUND under Indian Ocean

Posted in the African-American Forum

First Prev
of 2
Next Last

Level 3

Since: Dec 12

Location hidden

#1 Feb 26, 2013
Ker Than
for National Geographic News
Published February 25, 2013
Evidence of a drowned "microcontinent" has been found in sand grains from the beaches of a small Indian Ocean island, scientists say.
A well-known tourist destination, Mauritius (map) is located about 1,200 miles (2,000 kilometers) off the coast of Africa, east of Madagascar. Scientists think the tiny island formed some nine million years ago from cooling lava spewed by undersea volcanoes.
But recently, researchers have found sand grains on Mauritius that contain fragments of the mineral zircon that are far older than the island, between 660 million and about 2 billion years old.
In a new study, detailed in the current issue of the journal Nature Geoscience, scientists concluded that the older minerals once belonged to a now vanished landmass, tiny bits of which were dragged up to the surface during the formation of Mauritius.(Also see "World's Oldest Rocks Suggest Early Earth Was Habitable.")
"When lavas moved through continental material on the way towards the surface, they picked up a few rocks containing zircon," study co-author Bjørn Jamtveit, a geologist at the University of Oslo in Norway, explained in an email.
Most of these rocks probably disintegrated and melted due to the high temperatures of the lavas, but some grains of zircons survived and were frozen into the lavas [during the eruption] and rolled down to form rocks on the Mauritian surface."
Prehistoric Atlantis
Jamtveit and his colleagues estimate that the lost microcontinent, which they have dubbed Mauritia, was about a quarter of the size of Madagascar (map).
Furthermore, based on a recalculation of how the ancient continents drifted apart, the scientists concluded that Mauritia was once a tiny part of a much larger "supercontinent" that included India and Madagascar, called Rodinia.
The three landmasses "were tucked together in one big continent prior to the formation of the Indian Ocean," Jamtveit said.
But like a prehistoric Atlantis, Mauritia was eventually drowned beneath the waves when India broke apart from Madagascar about 85 million years ago.(Also see "Slimmer Indian Continent Drifted Ten Times Faster.")
Ancient Rocks
Scientists have long suspected that volcanic islands might contain evidence of lost continents, and Jamtveit and his team decided to test this hypothesis during a layover in Mauritius as part of a longer research trip in 1999.(See volcano pictures.)
The stop in tropical Mauritius "was a very tempting thing to do for a Norwegian in the cold month of January," Jamtveit said.
Mauritius was a good test site because it was a relatively young island and, being formed from ocean lava, would not naturally contain zircon, a tough mineral that doesn't weather easily.
If zircon older than 9 million years was found on Mauritius, it would be good evidence of the presence of buried continental material, Jamtveit explained.(See lava and rock pictures.)
At first, the scientists crushed rocks from Mauritius to extract the zircon crystals, but this proved difficult because the crushing equipment contained zircon from other sites, raising the issue of contamination.

Level 3

Since: Dec 12

Location hidden

#2 Feb 26, 2013
"That was a show stopper for a while," Jamtveit said.
A few years later, however, some members of the team returned to Mauritius and this time brought back sand from two different beaches for sampling.
The scientists extracted 20 zircon samples and successfully dated 8 of them by calculating the rate that the elements uranium and thorium inside of the samples slowly break down into lead.
"They all provided much older ages than the age of the Mauritius lavas," Jamtveit said. "In fact they gave ages consistent with the ages of known continental rocks in Madagascar, Seychelles, and India."
Missing Evidence?
Jérôme Dyment, a geologist at the Paris Institute of Earth Physics in France, said he's unconvinced by the work because it's possible that the ancient zircons found their way to the island by other means, for example as part of ship ballast or modern construction material.
"Extraordinary claims require extraordinary evidence, which are not given by the authors so far," said Dyment, who did not participate in the research.
"Finding zircons in sand is one thing, finding them within a rock is another one ... Finding the enclave of deep rocks that, according to the author's inference, bring them to the surface during an eruption would be much more convincing evidence."
Dyment added that if Mauritia was real, evidence for its existence should be found as part of a joint French and German experiment that installed deep-sea seismometers to investigate Earth's mantle around Réunion Island, which is situated about 120 miles (200 kilometers) from Mauritius.(Learn what's inside the Earth.)
"If a microcontinent lies under Réunion, it should be depicted by this experiment," said Dyment, who is part of the project, dubbed RHUM-RUM.
More Dismembered Continents to Be Found?
But Conall Mac Niocaill, a geologist at the University of Oxford in the U.K. who was also not involved in the study, said "the lines of evidence are, individually, only suggestive, but collectively they add up to a compelling story."
The zircons "produce a range of ages, but all yield ages older than 660 million years, and one is almost 2 billion years old," he added.
"There is no obvious source for them in Mauritius, and they are unlikely to have been blown in by the wind, or carried in by human activity, so the obvious conclusion is that the young volcanic lava sampled some older material on their way through the crust."
Based on the new findings, Mac Niocaill and others think other vanished microcontinents could be lurking beneath the Indian Ocean.
In fact, analyses of Earth's gravitational field have revealed other areas in the world's oceans where the rock appears to be thicker than normal and could be a sign of continental crusts.
"We know more about the topography of Mars than we do about the [topography] of the world's ocean floor, so there may well be other dismembered continents out there waiting to be discovered."
DA TRAP

Louisville, KY

#3 Feb 26, 2013
and they were all african where the black man invented technology, society, food, medicine, language, religion huh but then after the black man taught the white man these things the white man nuked the continent (using the superior black man's technology, of course) and continued with the superior black mans way of life

right..?

Level 3

Since: Dec 12

Location hidden

#4 Feb 26, 2013
DA TRAP wrote:
and they were all african where the black man invented technology, society, food, medicine, language, religion huh but then after the black man taught the white man these things the white man nuked the continent (using the superior black man's technology, of course) and continued with the superior black mans way of life
right..?
calm down

Level 3

Since: Dec 12

Location hidden

#5 Feb 26, 2013
DA TRAP wrote:
and they were all african where the black man invented technology, society, food, medicine, language, religion huh but then after the black man taught the white man these things the white man nuked the continent (using the superior black man's technology, of course) and continued with the superior black mans way of life
right..?
I posted this because posters on this site talked about this sunken continent before.
Axe-Me-Anything

Providence, UT

#6 Feb 26, 2013
DA TRAP wrote:
and they were all african where the black man invented technology, society, food, medicine, language, religion huh but then after the black man taught the white man these things the white man nuked the continent (using the superior black man's technology, of course) and continued with the superior black mans way of life
right..?
You forgot the most plausible part of your story...

Right after the white man "stole" all that knowledge from the superior black kings, the black man forgot he ever had that knowledge and duly returned to a stone age way of life.
Axe-Me-Anything

Clifton, NJ

#8 Feb 26, 2013
sand_-cracker wrote:
This continent and its capital, R'lyeh are Cthulhu's domain. White people were created by Cthulhu, though they will now vigorously deny that.
And here I thought you were just an intolerant Muslim pig...

...but you're fxcking insane!

“I'm out hunting”

Level 8

Since: Jan 10

For your mind and soul

#9 Feb 26, 2013
Maybe that was th real Atlantis?

Level 3

Since: Dec 12

Location hidden

#10 Feb 26, 2013
sand_-cracker wrote:
This continent and its capital, R'lyeh are Cthulhu's domain. White people were created by Cthulhu, though they will now vigorously deny that.
when were they created? and when did this continent sink into the ocean?

Level 3

Since: Dec 12

Location hidden

#11 Feb 26, 2013
emperorjohn wrote:
Maybe that was th real Atlantis?
could be. I would like the posters who have knowledge of this sunken continent to chime in, this was discussed in detail on this board in the past.

Since: Feb 13

Location hidden

#12 Feb 26, 2013
these scientists Always just "discovering" something that others have always known about.
Wes

Bronx, NY

#13 Feb 26, 2013
Geez don't some of you know anthropology? Nope sorry, no humans were around when this "continent" sank like 85 million!! years ago.

Level 3

Since: Dec 12

Location hidden

#16 Feb 26, 2013
sand_-cracker wrote:
<quoted text>
I believe that the continent sunk about 300 mln. years ago, but have to re-read Lovecraft to be sure.
funny

Level 3

Since: Dec 12

Location hidden

#17 Feb 26, 2013
Wes wrote:
Geez don't some of you know anthropology? Nope sorry, no humans were around when this "continent" sank like 85 million!! years ago.
this was discussed before on this board, and it was stated that humans in fact were around on this ancient continent.
Wes

Bronx, NY

#18 Feb 26, 2013
Superior Man wrote:
<quoted text>
this was discussed before on this board, and it was stated that humans in fact were around on this ancient continent.
Nonsense. There were no humans around nearly 85 million years ago when this "continent" sank. Humans most common ancestors only arose nearly 200,000 years ago.

Level 3

Since: Dec 12

Location hidden

#19 Feb 26, 2013
Wes wrote:
<quoted text>
Nonsense. There were no humans around nearly 85 million years ago when this "continent" sank. Humans most common ancestors only arose nearly 200,000 years ago.
well first off you are not able to verify this 85 million years ago number; secondly you cant verify this 200,000 years ago number that humans first arose.
Wes

Bronx, NY

#20 Feb 26, 2013
Superior Man wrote:
<quoted text>
well first off you are not able to verify this 85 million years ago number; secondly you cant verify this 200,000 years ago number that humans first arose.
Yes they are both verified. The article you posted verified this "continent" sunk 85 million years ago and science has repeatly verified that humans most common ancestors only came to exist nearly 200,000 years ago.

Level 3

Since: Dec 12

Location hidden

#21 Feb 26, 2013
lol they didnt even know the thing existed, how in the hell are they going to know when it sunk? These "scientists" change their "verifications" every 10 seconds, lol
moor83

Chicago Heights, IL

#22 Feb 26, 2013
i keep telling people you can't tell how old the earth was...soon as you find something you label oldest this or that something much more significantly older pops up. Time is an invention an illusion and we're still finding out...we've been here for a very long time..and all this we originated in africa lol...we also don't know what landmass we originated from either.
moor83

Chicago Heights, IL

#23 Feb 26, 2013
does it really matter what landmass...the entire planet is our home...

Tell me when this thread is updated:

Subscribe Now Add to my Tracker
First Prev
of 2
Next Last

Add your comments below

Characters left: 4000

Please note by submitting this form you acknowledge that you have read the Terms of Service and the comment you are posting is in compliance with such terms. Be polite. Inappropriate posts may be removed by the moderator. Send us your feedback.

African-American Discussions

Title Updated Last By Comments
News Barack Obama, our next President (Nov '08) 2 min Grey Ghost 1,274,468
Egyptians in Egypt 5 min African AE 374
The u S A era (1945 - 2008) in retrospect 7 min THX00451 15
What music are you listening to right now? (Sep '08) 9 min freddie47 33,741
NEANDERTHALS made WHITES more INTELLIGENT (Apr '13) 9 min iknowthetruth 1,268
White men are better lovers? 15 min Beautiful Creole 400
News UM hosts last listening session for chancellor ... 15 min Change needed 4
VA shooting is a hoax 1 hr ThatBlackGuy 33
REPARATIONS: They Will Be Paid Sooner Or Later (Jan '15) 4 hr ohReally 1,032
More from around the web