Posted on 08/05/2019 8:20:16 AM PDT by SunkenCiv
Research reveals that plate tectonics started on Earth 600 million years before what was believed earlier...
Where it was previously thought that plate tectonics started about 2.7 billion years ago, a team of international scientists used the microscopic leftovers of a drop of water that was transported into the Earth's deep mantle - through plate tectonics - to show that this process started 600 million years before that. An article on their research that proves plate tectonics started on Earth 3.3 billion years ago was published in the high impact academic journal, Nature, on 16 July...
For their research, the team analysed a piece of rock melt, called komatiite - named after the type occurrence in the Komati river near Barberton in Mpumalanga - that are the leftovers from the hottest magma ever produced in the first quarter of Earth's existence (the Archaean). While most of the komatiites were obscured by later alteration and exposure to the atmosphere, small droplets of the molten rock were preserved in a mineral called olivine. This allowed the team to study a perfectly preserved piece of ancient lava.
"We examined a piece of melt that was 10 microns (0.01mm) in diameter, and analysed its chemical indicators such as H2O content, chlorine and deuterium/hydrogen ratio, and found that Earth's recycling process started about 600 million years earlier than originally thought," says Wilson. "We found that seawater was transported deep into the mantle and then re-emerged through volcanic plumes from the core-mantle boundary."
(Excerpt) Read more at eurekalert.org ...
Funny! You can probably see Wakanda from there. :)
Mpumalanga is what the Eastern Transvaal was renamed after apartheid ended. Very beautiful area on the border of Swaziland; Kruger National Park is close to this town. I traveled there some years ago.
Gosh, you got me.
And if we believe THAT, they’ll tell us another one.
When can we reunite Pangaea? Then we’ll really be able to take the train everywhere!
I have a feeling that these people have no idea what actual proof of something is.
If you add up all the uncertainties underlying claims of events said to happen hundreds of millions of years ago or more, they add up to north of 99%.
You can’t hand-wave accumulated uncertainty and declare the outcome to be a proof, not if you want to be taken seriously by serious people.
have no idea what actual proof of something is
Right back at ya. And no, the word "proof" doesn't even occur in the article, which was written by a journalist.
But the word “proves” does occur, in the third sentence, and is the object of my criticism.
Failures in the acknowledgement of uncertainty turn science into cultism.
What planet is this?
Regardless, it's an article by a science journalist, not by the authors of the paper.
I didn’t want to look it up, luckily someone came through for us:
http://www.freerepublic.com/focus/chat/3769334/posts?page=21#21
Given how frequent this practice is among science journalists, it’s amazing scientists don’t object and correct more often, don’t you think?
No one buys your fake concern about the state of science, don't you get it?
Seems there is more agreement here for my point of view on the matter than yours.
Count ‘em... if you can.
Trolls in science topics? I don't count 'em, because they don't count.
put the cultish nonsense in Religion where it belongs and you can have your troll-free environment
Ridiculous, since this is a science topic, and you are a troll.
Ah yes, mysticism about things allegedly happening hundreds of years ago, with no possibility of experimental proof whatsoever, is “science”.
Take your religion and file it properly in the future and you won’t get pushback from people who know what science is.
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