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Rescooped by Sara Lee from Evolution
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Last dinosaur before mass extinction discovered | Science Codex

Last dinosaur before mass extinction discovered | Science Codex | Earth Sciences | Scoop.it

New Haven, Conn.—A team of scientists has discovered the youngest dinosaur preserved in the fossil record before the catastrophic meteor impact 65 million years ago. The finding indicates that dinosaurs did not go ...


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Earth's oldest impact crater found in Greenland - environment - 29 June 2012 - New Scientist

Earth's oldest impact crater found in Greenland - environment - 29 June 2012 - New Scientist | Earth Sciences | Scoop.it
A gigantic asteroid smashed into Greenland 3 billion years ago, making the crater it left behind the oldest on Earth – but the finding is (RT @TSXPennyStocks: $NAN up 10% Drilling Has Commenced On Earth's Oldest Nickel Bearing Meteor Impact Crater...
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Rescooped by Sara Lee from Forests, Ecosystem Services, and Climate Change.
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Soils in newly forested areas store substantial carbon that could help offset climate change

Soils in newly forested areas store substantial carbon that could help offset climate change | Earth Sciences | Scoop.it
Surface appearances can be so misleading: In most forests, the amount of carbon held in soils is substantially greater than the amount contained in the trees themselves.

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Mapping meteor impacts | Google Earth Blog

Mapping meteor impacts | Google Earth Blog | Earth Sciences | Scoop.it

Meteor crater kmls!  The Carolina Bays unwrapped!  And a link to an amazing map of every meteorite fall on earth!

 

If that doesn't satisfy your inner meteor geek, nothing will.

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Rock samples suggest meteor caused Siberian Tunguska blast, biggest Earth impact in recorded history

Rock samples suggest meteor caused Siberian Tunguska blast, biggest Earth impact in recorded history | Earth Sciences | Scoop.it

A meteor explosion in the atmosphere still seems the most likely cause for the 1908 disaster that flattened a forest in Siberia — and a new analysis of rock fragments appears to support that conclusion. Grains from Siberian peat bog now suggest to be remnants of the biggest Earth impact in recorded history.

 

They came from outer space. Fragments of rock retrieved from a remote corner of Siberia could help to settle an enduring mystery: the cause of the Tunguska explosion.

 

On 30 June 1908, a powerful blast ripped open the sky near the Podkamennaya Tunguska river in Russia and flattened more than 2,000 square kilometres of forest. Eyewitnesses described a large object tearing through the atmosphere and exploding before reaching the ground, sending a wave of intense heat racing across the countryside.

 

At an estimated 3 to 5 megatonnes of TNT equivalent, it was the biggest impact event in recorded history. By comparison, the meteor that struck the Russian region of Chelyabinsk earlier this year 'merely' packed 460 kilotonnes of TNT equivalent.


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Underwater forest? 'Enchanted forest' provides tantalizing hints to past climate.

Underwater forest? 'Enchanted forest' provides tantalizing hints to past climate. | Earth Sciences | Scoop.it
Underwater forest: An underwater forest discovered in the Gulf of Mexico contains trees that lived for hundreds or maybe thousands of years, and died over 50,000 years ago.

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