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Table 1 Modal compositions of the metamorphosed, hydrothermally altered metapelite samples from bore Gadna Gn-1, Szendrő Paleozoic, NE-Hungary

From: Retrograde alterations of phyllosilicates in low-grade metapelite: a case study from the Szendrő Paleozoic, NE-Hungary

Sample

Whole rock samples

<2 µm grain-size fraction samples

Qtz

Ab

Ms

Pg

MWM

Chl

Hys

Sm

ML

V

Cal

Py

Hem

Goe

Rt

Qtz

Ab

Ms

Pg

MWM

Chl

Hys

Sm

ML

V

Cal

Py

Hem

Goe

Rt

4.1 m

x

 

x

0

tr

 

x

tr

0

    

0

?

0

 

+

0

tr

 

x

0

x

    

0

?

7.6 m

x

 

x

0

tr

 

x

 

0

    

0

?

0

 

x

0

tr

 

x

tr

x

    

0

?

10.6 m

x

 

x

0

tr

 

x

 

0

     

?

x

 

+

x

tr

 

x

0

x

    

0

?

13.0 m

+

0

x

0

tr

 

x

0

 

0

tr

  

tr

?

  

x

0

tr

 

+

0

 

0

   

0

?

34.0 m

x

tr

x

0

tr

tr

x

 

0

 

tr

 

?

tr

?

x

 

x

x

tr

tr

x

 

0

 

0

  

0

?

38.3 m

x

 

x

0

tr

0

0

0

tr

     

?

0

 

x

0

tr

x

0

0

0

 

0

 

tr

0

?

52.0 m

x

x

x

 

tr

x

 

0

tr

  

tr?

  

tr

0

0

x

 

tr

x

 

0

0

 

0

   

0

60.0 m/b

x

0

x

 

tr

x

    

x

   

tr

0

0

x

 

tr

x

 

0

0

 

0

  

0

0

75.0 m

x

tr?

x

 

tr

x

 

0

tr

     

tr

x

 

+

 

tr

x

 

0

x

 

0

   

0

89.0 m/a

x

x

x

 

tr

x

    

x

tr?

  

tr

x

0

x

 

tr

+

 

0

0

 

0

0

 

0

0

89.0 m/b

x

x

x

 

tr

x

 

0

 

 

x

 

 

 

tr

0

tr?

x

 

tr

x

 

x

x

 

 

 

 

0

0

  1. Abbreviations of mineral names after Siivola and Schmid (2007) except Hys halloysite, MWM mixed Na–K-white mica, Sm smectite, ML mixed-layered clay mineral (mostly chlorite/muscovite) and V vermiculite (see text)
  2. +, dominant; x, significant; 0, subordinate; tr, traces; ?, questionable