Posted on 06/28/2014 6:53:52 PM PDT by 2ndDivisionVet
A team from Harvard University presented a study this month that remnants from an ancient Earth exists, right now, inside contemporary Earth. The group believes that their comparisons of isotopic ratios of noble gases from materials deep inside Earth with those near the surface provide testimony that the deep-down material is actually from the Earth that existed before its massive collision with another planet. That immense impact – the largest in geologic history – is what many believe led to creation of the Moon.
The currently favored theory about how the Moon originated says that it was formed 4.5 billion years ago when Earth collided with something enormous. However, this theory also states that the heat generated by such a collision would have been so great as to melt the entirety of Earth, even before some of the debris had a chance to spin off to create the Moon.
Such an impact and its related energy would have been enormous and Sujoy Mukhopadhyay, a Harvard associate professor and leader of the research team, says the the energy released would have been enough to turn the whole planet to liquid. Critically, however, he went on to say that such energy was not distributed evenly throughout the ancient pre-Earth planet. A major portion of the hemisphere that took the impact “would probably have been completely vaporized,” he said, but the other hemisphere would have been somehow shielded and thus “not have undergone complete melting.”
Mukhopadhyay and his group presented their work at the Goldschmidt geochemistry conference in Sacramento, California. Conference organizers describe the gathering as “the prime forum for all recent developments in Geochemistry and related fields.” It was there that the team announced it had uncovered evidence not only that much of Earth had indeed melted as a result of the collision but also that an even more ancient Earth still exists within the mantle of contemporary Earth.
The team recognized that the differences between the isotope ratios in different areas of the Earth required explanation. According to the study, remnants of the ancient Earth that existed before the current still survive. This implies that, despite the incredible drama of the impact event, a thorough mixing of the mantle’s magma did not occur. The idea that such a cataclysmic event did not completely homogenize Planet Earth challenges some of the assumptions about Earth’s formation, as well as the dynamics of such gargantuan impacts. Mukhopadhyay says that if the theory is correct, “then we may be seeing echoes of the ancient Earth, from a time before the collision.”
Richard Carlson, a past president of the conference’s organizer, the Geochemical Society, characterizes the findings of the study as “exciting.” He notes that it builds on existing evidence that some major parts of Earth’s composition were created out of extreme violence. The study provides “a new look at the physical processes by which this can occur.”
The team from Harvard compared noble gas isotope ratios from Earth’s mantle to ratios closer to Earth’s surface. Specific findings showed that the 3He to 22Ne ratio from above is much higher than the same ratio from obtained from deep-mantle samples. An additional ratio, 129-Xenon to 120-Xenon, provided further confirmation when, once again, measurements showed lower ratios from deep inside Earth than those found near its surface. The 129-Xenon that came from the ancient Earth section informed the scientists that the remnant material had been formed before the current Earth, as early as the first 100 million years of the planet’s history.
IT is conjecture, base in a preconceived idea. Then research to see if you can form the data to fit your notion.
He making an interesting point, and it may work out mathematically but then reality intrudes and it begets the question: What are the statistically probabilities of such an event occurring in the manner described....
Rapidly approaching nil.
Nice try though, good Doctor.
Earth is the only planet in our solar system to have a plate tectonics system. Something has allowed the interior of the earth to retain sufficient heat for this to work. We are larger than the other rocky planets who no longer exhibit volcanics though the did do so (Venus and Mars) earlier in their histories. Some of the moons of Saturn and Jupiter exhibit similar effects to tectonics but not quite due to the influence of the gas giants.
Some geologists believe the extra heat / energy of our moon creating collision gave us the extra energy to create an ongoing plate tectonic system.
btw, whatever happened to that ‘hollow earth’ expedition anyway?
Aren’t Jupiter and Saturn dwarf suns that never ignited, according to some scientists?
Well said!
The Nazis and aliens drove them off. Don’t you ever watch the History Channel?
Quercus Ardens.
settled science... right? 8^)
No such species.
huh,, that’s the channel that has american nosepickers, pawn my junk and many more shows? I seen most of the old history stuff anyway.. so reckun it don’t make much difference.
as to the occult and otherworldly connections to Nazis and aliens, who knows maybe this is the original earth them aryan fellas raised so much stink over.
“One of the professional hunters of the abominable snowman told me that the goal of their activities was to convert the earth’s human population to Atheism...”
The goal of the abominable snowman is to convert the earth’s human population to atheism?
(LOL)
I have no idea what you just wrote...
... again and again and again for each planet that we know of that has a moon(s)?
That’s always what I heard. At least when I was in high school a couple thousand years ago, or so it seems.
"We live not a hundred million years but four thousand five hundred million years since the Earth was spun from dust and rock around the sun. The evidence comes not from our planet but from its satellite. The Moon flew off its parent after a giant impact. Because it stayed small, cold and undisturbed it gives a better picture of the past than does its parent. A quick trip by the Apollo XI mission was enough to date it. The Earth's turmoil makes it harder to trace its own origin. It's oldest rocks, found in Greenland and Western Australia are just under four billion years old."
Oh OK. Need to brush up on my Latin.
Quercus Ardens. If you knew what you were saying, the specific epithet would not be capitalized and the entire generic name would be italicized as per convention. Just a point in the grand scheme of things, I guess. No big deal but at least be believable.
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