Dear Bernardo, Simon, et al.

I obviously also agree with Bernardo. However, I go a step farther in 
thinking that even the word "anatexis" should be forgotten and replaced 
simply by "partial melting" (fortunately we don't see "palingenesis" so 
much anymore...!). As a general rule I firmly believe that we should use 
as much as possible simple 'normal' words (even if it may sometimes be 
longer) instead of these 'scientific' expressions. (I could go on with 
all the 'good' I think for example about lepido- or nematoblastic 
textures...).

However, perhaps in this case the author wanted to say "metamorphism 
that reached conditions of partial melting" ? - in which cas the 
expression would not be as useless as it seems at first glance?

Cheers,

Pavel

On 07/09/2023 12:04, Simon Harley wrote:
> Hi Bernardo and Yong-Fei, Richard and all,
> 
> I agree wholeheartedly with Bernardo. There is not reference to 
> 'anatectic metamorphism' in key books by Turner, Turner et al., and 
> Miyashiro,nor in "High Temperature Metamorphism and Crustal Anatexis" 
> (eds. Ashworth & Brown, 1990) nor "Migmatites" (Ashworth). Anatexis is a 
> perfectly good noun in itself, as the metamorphism, and there is no need 
> to turn anatexis into an adjective to pair it with metamorphism. I agree 
> the expression 'anatectic metamorphism' is a redundancy.
> 
> Simon
> 
> Simon Harley FRSE
> 
> Professor of Lower Crustal Processes
> 
> School of Geosciences, University of Edinburgh
> 
> James Hutton Road
> 
> Edinburgh EH9 3FE
> 
> ph: (44) 0131 6504839
> 
> [log in to unmask]
> 
> 
> ------------------------------------------------------------------------
> *From:* Metamorphic Studies Group <[log in to unmask]> on 
> behalf of Bernardo Cesare <[log in to unmask]>
> *Sent:* 07 September 2023 10:18
> *To:* [log in to unmask] <[log in to unmask]>
> *Subject:* Re: [geo-metamorphism] Anatectic metamorphism
> Dear Yong-Fei
> 
> I don't have an answer to your question. Actually the combination of 
> words you refer to had never gained my attention before.
> My feeling, after having looked at some of the papers where it is used, 
> is that "anatectic metamorphism" is a redundant expression that can be 
> replaced by "anatexis" without loss of information and meaning.
> /Anatexis/ has been defined more than a century ago (maybe Grubenmann 
> 1904?), and is included in the glossary of terms recommended by 
> IUGS-SCMR (Metamorphic Rocks) at the section on Migmatites and related 
> rocks.
> I think we, as a community, should stick to this term and discourage the 
> "official" introduction or definition of new expressions.
> I would like to read the ideas of other members in the Group.
> 
> With Best Regards,
> 
> Bernardo Cesare
> 
> 
> 
> 
> Il giorno mer 6 set 2023 alle ore 08:38 Yong-Fei?Zheng 
> <[log in to unmask] 
> <mailto:[log in to unmask]>> ha scritto:
> 
>     Dear fellow colleagues,
> 
>     Does anyone know when and where the term "anatectic metamorphism"
>     was used for the first time?
> 
>     Best regards,
>     Yong-Fei
>     --
> 
>     ***********************************************************************
> 
>     Dr. Yong-Fei Zheng
> 
>     Professor of Geochemistry
> 
>     School of Earth and Space Sciences
> 
>     University of Science and Technology of China
> 
>     Hefei 230026, China
> 
>     Tel & Fax: +86 551 63603554
> 
>     Email: [log in to unmask] <mailto:[log in to unmask]>
> 
>     **********************************************************************
> 
> 
>     ------------------------------------------------------------------------
> 
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> 
> 
> 
> 

-- 
Pavel PITRA
Géosciences Rennes			[log in to unmask]
Université Rennes 1			tel: (++33) 2.23.23.65.06
Campus de Beaulieu - Bat. 15		
F - 35 042 RENNES CEDEX
FRANCE				http://www.geosciences.univ-rennes1.fr/
          https://geosciences.univ-rennes1.fr/interlocuteurs/pavel-pitra
+++
Česká geologická služba (Czech Geological Survey)
Klárov 3; Praha 118 21; Czech republic
http://www.geology.cz/

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