OH. OH OH OH.
Sep. 16th, 2014 03:59 pm![[personal profile]](https://www.dreamwidth.org/img/silk/identity/user.png){kind=small}
kaberettnts: Rhodri Davies on LLSVPs as purely thermal; statistical analysis --> plumes actually initiate prompted by downgoing slabs
pattern of downgone slabs? ages? association with age of AOC? globally widespread? modern-day plumes shouldn't care about 2.5Ga subducted slabs - but enough subducted crap lying around to explain it? Rather than LLSVPs, entrain mix of wossnames from lower mantle ("slab graveyard") allowing for more interesting complexity than LLSVP?
pattern of downgone slabs? ages? association with age of AOC? globally widespread? modern-day plumes shouldn't care about 2.5Ga subducted slabs - but enough subducted crap lying around to explain it? Rather than LLSVPs, entrain mix of wossnames from lower mantle ("slab graveyard") allowing for more interesting complexity than LLSVP?