Talk:Core–mantle boundary: Difference between revisions

Content deleted Content added

Inline

Revision as of 07:57, 6 December 2008

Geology Stub‑class

	Geology portal This article is within the scope of WikiProject Geology, an attempt at creating a standardized, informative, comprehensive and easy-to-use geology resource. If you would like to participate, you can choose to edit this article, or visit the project page for more information.GeologyWikipedia:WikiProject GeologyTemplate:WikiProject GeologyGeology
Stub	This article has been rated as Stub-class on Wikipedia's content assessment scale.
???	This article has not yet received a rating on the project's importance scale.

Physics Stub‑class

	Physics portal This article is within the scope of WikiProject Physics, a collaborative effort to improve the coverage of Physics on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.PhysicsWikipedia:WikiProject PhysicsTemplate:WikiProject Physicsphysics
Stub	This article has been rated as Stub-class on Wikipedia's content assessment scale.
???	This article has not yet received a rating on the project's importance scale.

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)[reply]

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)[reply]

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)[reply]

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)[reply]

@@ Line 7: / Line 7: @@
 |old-peer-review=
 }}
+{{Physics|class=stub|importance=|auto=yes}}
 ==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. [[User:Iothiania|Iotha]] 02:58, 3 November 2005 (UTC)