Talk:Igneous rock

Geology B‑class High‑importance

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Dike

Can someone help me out with the geological definition of dike at dike? Extend it to a dike (geology) page if you like... Thanks. dave 17:19 16 Jul 2003 (UTC)

Done - or at least started. Dike (geology) --Vsmith 03:19, 11 Sep 2004 (UTC)

The part on classification is pretty inadquate. Without having to totally rip off something else, we should at least either a) move it to a new page such as Igneous rock classification and give it a good go, or at least condense the wisdom in the first part of this. For instance, the current spiel focuses on poor but serviceable definitions of igneous rocks based entirely on whether they are felsic or mafic, without giving any regard to the chemistry (except the TAS diagram, which is a last resort anyway).
For instance there is no way to get stuck into the taxonomy of rocks in an organised manner, such as in that flowchart. There are principles to the taxonomy of igneous rocks after all. Even taking aside the fact it's a human endeavor, there are some rocks such as alkaline basalts, peralkaline and ultrapotassic rocks which are distinct solely because of their mechanism of melting - for instance thermal divides, etc. created by partial melting mechanisms. And there's the lack of a definition between calc-alkaline and tholeiitic. Rolinator 05:25, 28 December 2005 (UTC)[reply]

Thangalin 01:40, 23 October 2006 (PST)

B class

Well written article, but I'm reluctant to give it better than a B class rating for "WikiProject Geology" until the references are actually cited in the text so we can see where statements came from. --Zamphuor 15:52, 22 April 2007 (UTC)[reply]

Nice job. yesterday I added 2 sentences on the extrusive and intrusive igneous rocks. Glad to see someone worked on it. —Preceding unsigned comment added by Jwebbxsjado (talk • contribs) 14:29, 25 September 2007 (UTC)[reply]

Vandalism

I'm a casual user that noticed some vandalism on the page. I'm going to remove it, but I noticed in the history that this page has had a fair amount of vandalism for some strange reason. Someone a bit more saavy with the workings of Wikipedia might want to do something about it. —Preceding unsigned comment added by 71.111.248.218 (talk) 16:00, 20 October 2007 (UTC)[reply]

Porphyritic classification

Something along the lines of:
Porphyritic rocks are classified as either phaneritic or aphanitic according to the groundmass' texture. Further refinement to the classification is made by adding the adjectives porphyritic or porphyry to the name (i.e. porphyritic andesite or andesite porphyry.)
should be added to either this page or the pages on porphyry and porphyritic texture. Zappa2496 (talk) 07:28, 21 April 2008 (UTC)[reply]

respond

the ingeous rock history is cool but the most important subject that relates to that is my science class who is studing that and my teacher he has many things to do with that —Preceding unsigned comment added by 96.250.153.110 (talk) 19:49, 8 September 2008 (UTC)[reply]

Errors on page

at the top of the article it says taht igneous comes from the latin work ignis, but at the bottom it says it comes from the latin work igneus. This needs to be fixed Wumbla (talk) 03:05, 17 November 2008 (UTC)[reply]

i want to know the ten examples of igneous rocks

HEY!!!!!!!!! —Preceding unsigned comment added by 70.151.179.162 (talk) 21:59, 3 March 2009 (UTC)[reply]

Vandanlism

First section of this article has been vandalized with crude sexual humor. I'm not sure how to fix this problem.

Also found that when I clicked on the sandbox, a lude illustration came up. —Preceding unsigned comment added by 174.113.87.224 (talk) 00:09, 29 May 2009 (UTC)[reply]

Volcanic/Plutonic

"igneous rocks can be either intrusive (plutonic), extrusive (volcanic) "

Intrusive/plutonic and extrusive/volcanic are not synonyms! A near surface lava sill is volcanic, but it is not extrusive. A dyke is intrusive, but it is not plutonic. —Preceding unsigned comment added by 203.38.62.211 (talk) 08:36, 21 November 2009 (UTC)[reply]

Classification Chart

Do you think this chart would be proper for the page?

http://commons.wikimedia.org/wiki/File:Igneous_Rock_Chart.PNG

There is also one for sedimentary and metamorphic. Andrew Colvin (talk) 00:07, 4 January 2010 (UTC)[reply]