Talk:Core–mantle boundary
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[edit] Bullen Discontinuity?
On About.com, I saw the D’’ refered to as the "Bullen Layer". I've seen "Bullen Discontinuity" used for the D” as well. However, the orignal Bullen Discontinuity article here described the term as if it were the Lehmann discontinuity (in between outer & inner core). So, which is which? I find myself confused right now. Iotha 02:58, 3 November 2005 (UTC)
- If you do a Google search on "Bullen Layer" with the quotes, Google returns a grand total of 4 hits including the about.com ref you mentioned and another is an iranian? edu copy of the about.com article. A third is to "Bullen's Layer [C3]... and the fourth is a UK quiz member only site. Given that I'd say the "Bullen Layer" hasn't been overwhelmingly adopted. Vsmith 03:40, 3 November 2005 (UTC)
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- I've googled about and it seems to me now that "Bullen Discontinuity" is just another term for the Lehmann one. The latter returns more results though, so I'll stick to using it either way. Sorry for any mix up. Iotha 04:59, 3 November 2005 (UTC)
[edit] What happens after 500million-1billion years
when the core grows to the surface?If it increases each year by 1cm its going to happen. —Preceding unsigned comment added by MidNiteNeko (talk • contribs) 13:38, 6 October 2007 (UTC)
