Talk:Plate tectonics

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Can somebody correct the spelling of the title, please? It's tectonics.--OmnusErudito 18:40, 23 March 2007 (EDT)

Copyright

The overview text is almost a direct copy of the article 'Plate tectonics' in Wikipedia. When you use direct quotes you should at least mention the source. Shame on you.

http://en.wikipedia.org/wiki/Plate_tectonics

BR Jhie

I don't know why it's taken so long for someone to notice and/or act on this, but you were correct, and I have now deleted the introduction. Philip J. Rayment

Centre of the Earth

Surely the centre of the Earth is, in fact, the core? And if you look at a map of Pangea, such as at http://geology.com/pangea.htm then the 'centre' of Pangea is rather hard to guage. Either in the middle of the Sea of Tethys or somewhere in the middle of North Africa? Darkmind1970 11:41, 4 January 2008 (EST)

To defend that claim, I'd point out that (a) the reference is talking about the centre of the surface, or of the landmass, not the centre of the globe as one my legitimately infer from the phrase, and that it does seem that the middle east would have originated near the point of what was later termed the Sea of Tethys, which is arguably around the centre of the landmass. However, the claim itself is tenuous, probably only one person's view (I've never heard it before in over 30 years of studying creation), and not worthy of inclusion, so I've deleted it.

The state of this article

I've just deleted the introduction which was lifted from Wikipedia (see separate discussion above), leaving a very rudimentary introduction in it's place.

Most of the rest was copied from a USGS site (I'll link that on the article shortly), but from only one section of that site. Therefore it talks about Wegener as though he has already been mentioned, which he hasn't in this article, but was in other sections of the USGS site.

Although copying from U.S. Government sites is both legal and within the rules of Conservapedia, I'm not a fan of doing that, so won't myself fix that problem by copying more from there. But the article clearly needs more work.

There's also a couple of other issues (such as the centre of the Earth one discussed above), but I'll attend to them shortly.

Philip J. Rayment 22:16, 4 January 2008 (EST)

Proposed new introduction

I have written a slightly longer introduction for this article. It's a small edit, but I hope a step in the right direction. If no one disapproves, I'll make the edit and add some sources:

Plate tectonics describes the slow movement and reconfiguration of the Earth's crust. The crust itself is broken up into numerous tectonic plates which float above the mantle and push and grind against one another. The major plates -- the African, Antarctic, Australian, Indian, Eurasian, North American, South American, and Pacific -- are the largest, and their movement generally dominates the process. Plate tectonics is the cause of mountain formation as well as earthquakes, while another obvious sign of the process is vulcanism, most notably the Ring of Fire and the Hawaiian Islands. Over many hundreds of millions years, the movement of the tectonic plates has continually rearranged the continents, and at it is theorized that at several times in the past they combined to form much larger landmasses. The most recent of these supercontinents was Pangea, which existed about 250 million years ago.

Thanks. --SStaples 00:15, 6 March 2009 (EST)