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Untitled

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I moved back the setence about metamorphism to metamorphism, ie, undoing redirect, because i intend to write a proper article about that.

What is missing? Facies and textures. Muriel Gottrop 15:14, 1 Aug 2003 (UTC)

B Rating

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Though well-written I rated this article only "B" for the "WikiProject Geology" assessment because of the severe lack of references. The only reference (apart from a few external links) is to the 1910-11 public domain version of Encyclopedia Britannica; I think the science of metamorphic geology might have moved on just a little since then. --Zamphuor 15:35, 22 April 2007 (UTC)[reply]

Yesterday I thought this was deleted. —Preceding unsigned comment added by Jwebbxsjado (talk • contribs) 14:26, 25 September 2007 (UTC)[reply]

The reference to 150 degrees C should be checked. That's only 302 degrees F. That doesn't sound right.69.122.62.231 (talk) 23:20, 11 February 2008 (UTC)[reply]

Checked and reference added. Vsmith (talk) 00:48, 12 February 2008 (UTC)[reply]

Thank you for that.69.122.62.231 (talk) 16:59, 15 February 2008 (UTC)[reply]


Hey, what about this idea of the mica or phyllosilicates realigning themselves mechanically within metamorphic rock. I bet it is way more complicated than that. Reference Please! Has any experimental geologist done this in a lab? In addition, styolites caused from pressure solution are very common in marble can be argued as an erratic foliation since they can be composed of carbon, iron oxide, or phyllosilicates. This is based on field experience within several Nevada mines. Here is the only link I could find on the subject. http://erictwelker.com/pressuresolution.htm I am too busy to research this for the next year. — Preceding unsigned comment added by 108.64.107.80 (talk) 21:45, 3 July 2014 (UTC) Thank you for reading about rocks and minerals. — Preceding unsigned comment added by 172.58.59.60 (talk) 00:15, 14 October 2020 (UTC)[reply]

Why?

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What is metamorphic rock used for? —Preceding unsigned comment added by 81.156.176.218 (talk)

The last sentence of the introduction of the article gives some specific examples of metamorphic rocks. You have probably even heard of some of them. But you can also click on their and read details (including uses) of them. DMacks (talk) 17:26, 21 September 2009 (UTC)[reply]

Classification Chart

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

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

There is also one for sedimentary and igneous. Andrew Colvin (talk) 00:46, 4 January 2010 (UTC)[reply]

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I found an earlier version of the link that works. — Gorthian (talk) 03:19, 28 February 2016 (UTC)[reply]
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Semi-protected edit request on 10 December 2018

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Cwsprag (talk) 21:51, 10 December 2018 (UTC)[reply]

Hi, im requesting to make temporary changes to this petrology page for a college exam. I need to increase the information regarding the "mixing and minlging" of rocks. basically I need to add 3-4 pages of information regarding that subject. There is literally no information regarding this topic on wikipedia at all. thanks!

 Not done: it's not clear what changes you want to be made. Please mention the specific changes in a "change X to Y" format and provide a reliable source if appropriate. DannyS712 (talk) 22:28, 10 December 2018 (UTC)[reply]

Semi-protected edit request on 26 November 2019

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basalt is metamorophic and is a rock 51.37.43.200 (talk) 07:25, 26 November 2019 (UTC)[reply]

 Not done as Basalt is an Igneous rock - Arjayay (talk) 10:15, 26 November 2019 (UTC)[reply]

Shock Metamorphism

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I know in the more traditional sense of types of metamorphism, it is mainly regional versus contact (or "local"). However, I do think at least a mention of shock metamorphism is relevant. There's even a Wikipedia page that could be linked/mentioned: https://en.wikipedia.org/wiki/Shock_metamorphism It includes many things like impactites, high-pressure polymorphs of quartz like coesite. I think Sudbury or Ries are a prime examples. Joedf (talk) 18:25, 19 February 2020 (UTC)[reply]

Metamorphism versus metamorphic rock

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Discussion here. --Kent G. Budge (talk) 21:58, 23 February 2021 (UTC)[reply]

Agricultural science

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Meaning of mode of metal morphic rocks 105.112.183.113 (talk) 16:22, 25 January 2022 (UTC)[reply]

Add Existing Metamorphic Rock Protolith reference

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website: https://opengeology.org/textbook/6-metamorphic-rocks/

Common error in many major, online professional geological references... claims that metamorphic rock "protoliths" are only sedimentary and igneous rocks.

Wikipedia "Metamorphic Rock" article correctly states that metamorphic rock "protoliths" include "... and existing metamorphic rocks." This sentence lacks a major professional geological reference, so I provided one above. More available.

Wikipedia "Protolith" article and its references incorrectly claim metamorphic rock protoliths include only sedimentary and igneous rocks. That article needs correction. Regardless of the many other online references that repeat this major error.

Proven cases over billions of years of plate tectonics show many major mountain belts have undergone multiple orogenies (mountain [re]building events) that clearly include re-metamorphism. Sometimes more intense "prograde" [re]metamorphism; sometime less intense "retrograde" [re]metamorphism. Cassiodorus8 (talk) 13:52, 15 March 2023 (UTC)[reply]

please disregard and delete this proposal Cassiodorus8 (talk) 18:14, 15 March 2023 (UTC)[reply]
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