#  Comment on “Glacial cycles drive variations in the production of oceanic crust” 

 





September 04, 2015

 

 

by John Goff

Abstract: Crowley *et al*. (Reports, 13 March 2015, p. 1237) propose that abyssal hill topography can be generated by variations in volcanism at mid-ocean ridges modulated by Milankovitch cycle–driven changes in sea level. Published values for abyssal hill characteristic widths versus spreading rate do not generally support this hypothesis. I argue that abyssal hills are primarily fault-generated rather than volcanically generated features. [Full Text (PDF)](/file_url/291)



 

 

 



 

 

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