sample number

tectonic location

ratio of bicrystalline particles

S1 value

Δσ/Mpa

first group

second group

first group

second group

first group

second group

mean value

G132

Baixi Faults

66

25

0.19

0.12

53

83

68

G17-1

middle of Jijiaoyan faults

66

15

0.19

0.17

53

58

55.5

G8-1

south of Jijiaoyan faults

50

20

0.29

0.14

34

71

52.5

G128

south of Jijiaoyan faults

54

16

0.26

0.16

38

63

50.5

G25-1

middle of Maoping faults

52

19

0.28

0.15

36

67

51.5