#  Science Mag News: Record grooves on ocean floor document Earth’s ice ages 

 





February 05, 2015

 

 

As the pressure on the ocean floor eases, magma erupts more readily at the spreading centers, thickening the plates and creating the abyssal hills, say the authors of two new studies, one published online this week in Science (scim.ag/JCrowley)...([more](http://news.sciencemag.org/earth/2015/02/record-grooves-ocean-floor-document-earth-s-ice-ages))



 

 

 



 

 

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