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Table 1 Quantitative determination of mineralogy of the size fractions determined by X-Ray diffraction (XRD) on air-dried and glycolated samples

From: Timing and conditions of brittle faulting on the Silltal-Brenner Fault Zone, Eastern Alps (Austria)

Sample Quartz Plagioclase Calcite Chlorite Smectite Illite/Mica 2M1 Paragonite 2M1
SB2 <0.4 μm     5 35 60  
SB2 <2 μm <1    9 32 59  
SB2 2–6 μm 2    9 34 55  
SB2 6–10 μm 2    10 34 54  
SB3 <0.4 μm     3 34 63  
SB3 <2 μm     7 17 75 1
SB3 2–6 μm 4    19 13 60 4
SB3 6–10 μm 9    34 5 47 5
SB4 <0.1 μm     2 9 88  
SB4 <0.4 μm     6 33 61  
SB4 <2 μm     6 32 62  
SB4 2–6 μm 2    11 27 60 <1
SB4 6–10 μm 4    20 21 53 2
BF1 <0.1 μm     12   88  
BF1 <0.4 μm     15   85  
BF1 <2 μm 2    17   81  
BF1 2–6 μm 5 2   17   76  
BF1 6–10 μm 10 2   11   76  
BF1 WR 24 5 2 9   60  
BF2 <0.1 μm     11   89  
BF2 <0.4 μm     10   90  
BF2 <2 μm 2    23   76  
BF2 2–6 μm 2    17   81  
BF2 6–10 μm 6    17   76  
BF2 WR 33 6   8   52  
  1. The potential error on the estimates is taken as ±5 %. WR (“whole rock”) refers to the field sample as collected, without size fraction separation