This is the
talk page for discussing improvements to the
Gneiss article. This is not a forum for general discussion of the article's subject. |
Article policies
|
Find sources: Google ( books · news · scholar · free images · WP refs) · FENS · JSTOR · TWL |
This
level-4 vital article is rated Start-class on Wikipedia's
content assessment scale. It is of interest to the following WikiProjects: | |||||||||||||||||||||||||||||||
|
Second picture looks like a migmatite, not gneiss. I think that it's better to remove it. Siim 19:30, 16 September 2005 (UTC)
Your article says that gneisses do not carry large quantities of micas, then it goes on to say that a gneiss may be classified as biotite gneiss. These two statements are contradictory because biotite is a mica. I suggest deleting the reference to micas.
The article on biotite actually says that it is found in gneisses.
When shales and mudstones are metamorphosed they turn initially to slates and then to coarse-grained foliated rocks rich in shiny mica called schists, and finally to coarse-banded rocks called gneisses. The Geology of Britain, Peter Toghill.
I think this means that if it is foliated or in 'leaves' like a mica then it's a schist, if it is banded (maybe blocky?) it's a gneiss. I would appreciate comments and clarification here. PeterGrecian 12:22, 31 October 2006 (UTC)
I don't have time to fix it but "metamorphic Dwayne Johnsons"? I get it, it is kind of funny but could be confusing to people without a geology learnin. —Preceding unsigned comment added by 71.103.202.224 ( talk) 21:26, 6 April 2009 (UTC)
Can anyone help expand this article. -- Extra999 ( Contact me + contribs) 03:26, 28 April 2010 (UTC)
What is the origin of Rhyolite & Gneiss? — Preceding unsigned comment added by 68.186.22.149 ( talk) 17:16, 10 November 2011 (UTC)
I've been familiar with gneiss for many years but not once have I ever heard any geologist refer to it as 'the old boy' - though this useage appears to be referenced. Does anyone have a copy of Murray from which this phrase uttered by some geologists purports to come? cheers Geopersona ( talk) 17:16, 28 August 2012 (UTC)
Here is an idea. Why not use the section titled "Composition" to actually discuss the composition of the various gneisses? What a concept! This section is poor. It is NOT useful to tell the reader what gneiss is NOT. 216.96.77.42 ( talk) 22:23, 15 November 2012 (UTC)
We need more info about gneiss in the Infobox. If anyone has more info about gneiss that could be added to the Infobox, please add it to the Infobox. Punk4orchrist ( talk) 17:57, 13 January 2015 (UTC)
This is the
talk page for discussing improvements to the
Gneiss article. This is not a forum for general discussion of the article's subject. |
Article policies
|
Find sources: Google ( books · news · scholar · free images · WP refs) · FENS · JSTOR · TWL |
This
level-4 vital article is rated Start-class on Wikipedia's
content assessment scale. It is of interest to the following WikiProjects: | |||||||||||||||||||||||||||||||
|
Second picture looks like a migmatite, not gneiss. I think that it's better to remove it. Siim 19:30, 16 September 2005 (UTC)
Your article says that gneisses do not carry large quantities of micas, then it goes on to say that a gneiss may be classified as biotite gneiss. These two statements are contradictory because biotite is a mica. I suggest deleting the reference to micas.
The article on biotite actually says that it is found in gneisses.
When shales and mudstones are metamorphosed they turn initially to slates and then to coarse-grained foliated rocks rich in shiny mica called schists, and finally to coarse-banded rocks called gneisses. The Geology of Britain, Peter Toghill.
I think this means that if it is foliated or in 'leaves' like a mica then it's a schist, if it is banded (maybe blocky?) it's a gneiss. I would appreciate comments and clarification here. PeterGrecian 12:22, 31 October 2006 (UTC)
I don't have time to fix it but "metamorphic Dwayne Johnsons"? I get it, it is kind of funny but could be confusing to people without a geology learnin. —Preceding unsigned comment added by 71.103.202.224 ( talk) 21:26, 6 April 2009 (UTC)
Can anyone help expand this article. -- Extra999 ( Contact me + contribs) 03:26, 28 April 2010 (UTC)
What is the origin of Rhyolite & Gneiss? — Preceding unsigned comment added by 68.186.22.149 ( talk) 17:16, 10 November 2011 (UTC)
I've been familiar with gneiss for many years but not once have I ever heard any geologist refer to it as 'the old boy' - though this useage appears to be referenced. Does anyone have a copy of Murray from which this phrase uttered by some geologists purports to come? cheers Geopersona ( talk) 17:16, 28 August 2012 (UTC)
Here is an idea. Why not use the section titled "Composition" to actually discuss the composition of the various gneisses? What a concept! This section is poor. It is NOT useful to tell the reader what gneiss is NOT. 216.96.77.42 ( talk) 22:23, 15 November 2012 (UTC)
We need more info about gneiss in the Infobox. If anyone has more info about gneiss that could be added to the Infobox, please add it to the Infobox. Punk4orchrist ( talk) 17:57, 13 January 2015 (UTC)