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
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
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. Iotha02:58, 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. Vsmith03:40, 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. Iotha04:59, 3 November 2005 (UTC)[reply]
.jpg){kind=small}
