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Table 2 The inertinite abundance and pO2 characteristics in Carboniferous–Permian coals in China. IAVG: Mean inertinite abundance; N: Samples number; R: Percentage range; S: Standard deviation

From: Characteristics and evolution of inertinite abundance and atmospheric pO2 during China’s coal-forming periods

Literature source

IAVG, %

N

R (min–max), %

S

pO2, %

Stage/Formation/Locality

Province

Early Carboniferous

 Han 1996

12.2

3

6.1–21.2

6.5

25

Visean/Chouniugou F./Jingyuan

Gansu

 Potential evaluation of coal resources in Yunnan

11.0

2

10.8–11.2

0.2

25

Visean/Wanshoushan F./Dianzhong

Yunnan

 Potential evaluation of coal resources in Guangxi

14.0

2

13.0–15.0

1.0

25

Dewuan (Serpukhovian)/Simen F./Datang

Guangxi

 Yang 1996

10.7

4

5.0–22.3

7.0

24

Dewuan (Serpukhovian)/Ceshui F./Huaihua

Hunan

20.2

1

  

27

Dewuan (Serpukhovian)/Ceshui F./Shuangfeng

Hunan

14.5

1

  

25

Dewuan (Serpukhovian)/Ceshui F./Xinhua

Hunan

5.6

1

  

23

Dewuan (Serpukhovian)/Ceshui F./Huishanxiang

Hunan

Late Carboniferous–Early Permian

 Han 1996

23.6

1

  

27

Xiaoyiaoan (Kasimovian–Gzhelian)/Taiyuan F./Shizuishan

Ningxia

19.1

2

18.5–19.6

0.6

26

Xiaoyiaoan (Kasimovian–Gzhelian)/Taiyuan F./Wuda

Inner Mongolia

28.0

10

1.7–59.3

15.2

28

Xiaoyiaoan (Kasimovian–Gzhelian)/Taiyuan F./Datong

Shanxi

28.6

7

20.9–50.0

9.8

28

Xiaoyiaoan (Kasimovian–Gzhelian)/Taiyuan F./Tangshan

Hebei

23.6

1

  

27

Xiaoyiaoan (Kasimovian–Gzhelian)/Taiyuan F./Nanpiao

Liaoning

25.2

5

10.6–47.0

12.1

27

Xiaoyiaoan (Kasimovian–Gzhelian)/Taiyuan F./Tongchuan

Shaanxi

9.7

2

7.4–12.0

2.3

24

Xiaoyiaoan (Kasimovian–Gzhelian)/Taiyuan F./Pingdingshan

Henan

12.4

6

7.0–18.0

4.0

25

Xiaoyiaoan (Kasimovian–Gzhelian)/Taiyuan F./Luzhong

Shandong

8.3

2

6.5–10.0

1.8

24

Xiaoyiaoan (Kasimovian–Gzhelian)/Taiyuan F./Xuzhou

Jiangsu

 Dai et al. 2006

37.4

7

  

29

Xiaoyiaoan (Kasimovian–Gzhelian)/Taiyuan F./Ordos Basin

Inner Mongolia

 Dai et al. 2008

58.8

1

  

30

Xiaoyiaoan (Kasimovian–Gzhelian)/Taiyuan F./Junggar Coalfield

Inner Mongolia

 Xiao et al. 2005

32.5

13

 

5.2

28

Xiaoyiaoan (Kasimovian–Gzhelian)/Taiyuan F./Ordos Basin

Gansu, Shaanxi, and

Inner Mongolia

 Querol et al. 1999

10.3

4

 

4.9

24

Xiaoyiaoan (Kasimovian–Gzhelian)/Taiyuan F./Luxi area

Shandong

 Liu et al. 2004

12.9

6

 

3.9

25

Xiaoyiaoan (Kasimovian–Gzhelian)/Taiyuan F./Yanzhou

Shandong

 Zhou et al. 1990

17.1

22

 

5.9

26

Xiaoyiaoan (Kasimovian–Gzhelian)/Taiyuan F./Pingdingshan

Henan

 Sun et al. 2002

3.0

1

  

21

Xiaoyiaoan (Kasimovian–Gzhelian)/Shanxi F./Xingtai

Hebei

 Querol et al. 1999

20.5

3

 

2.4

27

Zisongian (Asselian–Sakmarian)/Shanxi F./Luxi area

Shandong

 Sun et al. 2002

45.0

11

 

8.7

29

Zisongian (Asselian–Sakmarian)/Shanxi F./Xingtai

Hebei

 Li et al. 1997

37.4

45

  

29

Zisongian (Asselian–Sakmarian)/Shanxi F./Huabei Basin

Henan

Shanxi

 Xiao et al. 2005

35.1

32

 

7.5

28

Zisongian (Asselian–Sakmarian)/Shanxi F./Ordos Basin

Inner Mongolia

 Han 1996

9.2

5

3.5–12.4

3.1

24

Zisongian (Asselian–Sakmarian)/Chuanshan F./Longyan

Fujian

 Li et al. 1997

20.0

28

  

27

Zisongian (Asselian–Sakmarian)/Taiyuan F./Huabei Basin

Henan

Shanxi

 Potential evaluation of coal resources in Inner Mongolia

18.4

1

  

26

Longlinian (Artinskian)/Taiyuan F./Zhuozishan Mining area

Inner Mongolia

 Yang 1996

51.6

2

45.3–57.9

6.3

30

Longlinian (Artinskian)/Taiyuan F./Junggar Basin

Inner Mongolia

42.6

2

34.6–50.6

8.0

29

Longlinian (Artinskian)/Taiyuan F./Shizuishan

Ningxia

34.3

6

23.7–55.6

11.5

28

Longlinian (Artinskian)/Taiyuan F./Datong

Shanxi

24.9

2

13.4–36.4

11.5

27

Longlinian (Artinskian)/Taiyuan F./Fengfeng

Hebei

11.1

5

8.6–15.7

2.6

25

Longlinian (Artinskian)/Taiyuan F./Luxinan area

Shandong

8.5

3

7.5–10.5

1.4

24

Longlinian (Artinskian)/Taiyuan F./Xuzhou

Jiangsu

39.1

3

35.9–41.9

2.5

29

Longlinian (L. Artinskian)/Shanxi F./Wuhai

Inner Mongolia

37.9

2

28.0–47.8

9.9

29

Longlinian (L. Artinskian)/Shanxi F./Shizuishan

Ningxia

15.9

3

8.8–19.7

5.0

26

Longlinian (L. Artinskian)/Shanxi F./Wubao

Shaanxi

32.9

6

19.4–45.3

9.1

28

Longlinian (L. Artinskian)/Shanxi F./Jinbei area

Shanxi

32.9

6

27.6–35.7

2.5

28

Longlinian (L. Artinskian)/Shanxi F./Jixi area

Hebei

27.9

8

18.0–40.0

6.9

28

Longlinian (L. Artinskian)/Shanxi F./Luxi area

Shandong

24.3

2

24.1–24.5

0.2

27

Longlinian (L. Artinskian)/Shanxi F./Lianghuai/

Anhui

33.3

3

30.0–37.0

2.9

28

Longlinian (L. Artinskian)/Shanxi F./Xuzhou

Jiangsu

26.0

1

  

27

Longlinian (L. Artinskian)/Shanxi F./Pingdingshan

Liaoning

18.5

7

6.2–29.1

8.0

26

Longlinian (L. Artinskian)/Shanxi F./Wanbei area

Henan

10.0

2

5.6–14.3

4.4

24

Luodianian (E. Kungurian)/Liangshan F./Huaihua

Hunan

6.4

7

2.0–16.0

4.8

23

Luodianian (E. Kungurian)/Liangshan F./Tongshan

Hubei

 Mu-Qiu 1979

20.6

18

 

20.3

27

Luodianian (Kungurian)/Shanxi F./Kailuan Basin

Hebei

Middle Permian

 Yang 1996

13.8

1

  

25

Luodianian–Xiangboan (Kungurian)/Liangshan F./Chenxi

Hunan

15.0

1

  

26

Luodianian–Xiangboan (Kungurian)/Liangshan F./Chenxi

Hubei

58.3

4

35.0–78.0

15.7

30

Luodianian–Xiangboan (Kungurian)/Liangshan F./Yuebei area

Guangdong

20.0

1

  

27

Luodianian–Xiangboan (Kungurian)/Liangshan F./Dianbei area

Yunnan

21.0

5

14.7–34.6

7.2

27

Xiangboan (L. Kungurian–E. Roadian)/L. Shihezi F./Huainan

Anhui

45.3

2

35.8–54.8

9.5

29

Xiangboan (L. Kungurian–E. Roadian)/L. Shihezi F./Suzhou

Anhui

22.6

1

  

27

Xiangboan (L. Kungurian–E. Roadian)/L. Shihezi F./Huaibei

Anhui

29.5

1

  

28

Xiangboan (L. Kungurian–E. Roadian)/L. Shihezi F./Xuzhou

Jiangsu

33.6

1

  

28

Xiangboan (L. Kungurian–E. Roadian)/L. Shihezi F./Pingdingshan

Henan

 Han 1996

7.9

2

5.7–10.0

2.2

24

Xiangboan (L. Kungurian–E. Roadian)/L. Shihezi F./Suzhou

Anhui

6.5

10

2.7–9.6

1.9

23

Lengwuan (Capitanian)/Tongziyan F./Yongding

Fujian

 Yang 1996

42.1

2

40.5–43.6

1.6

29

Lengwuan (Capitanian)/U. Shihezi F./Huaibei

Anhui

23.0

4

15.8–30.5

5.5

27

Lengwuan (Capitanian)/U. Shihezi F./Huainan

Anhui

28.5

2

15.0–42.0

13.5

28

Lengwuan (Capitanian)/Tongziyan F./Meizhou

Guangdong

Late Permian

 Yang 1996

9.4

6

5.6–11.2

2.0

24

Wuchiapingian/Longtan F./Edong

Hubei

18.1

5

9.8–30.0

7.7

26

Wuchiapingian/Longtan F./Shaoguan

Guangdong

21.1

5

14.0–32.6

6.7

27

Wuchiapingian/Longtan F./Qujing

Yunnan

10.1

5

2.8–22.0

6.7

24

Wuchiapingian/Longtan F./Guizhong area

Guangxi

13.0

2

7.0–19.0

6.0

25

Wuchiapingian/Longtan F./Guangde

Anhui

15.6

1

  

26

Wuchiapingian/Longtan F./Changxing

Zhejiang

20.5

3

14.2–31.4

7.7

27

Wuchiapingian/Longtan F./Sunan area

Jiangsu

20.7

4

8.6–36.8

10.6

27

Wuchiapingian/Longtan F./Jiujiang

Jiangxi

 Querol et al. 2001

20.3

8

2.2–26.8

12.9

27

Wuchiapingian/Longtan F./Leping

Jiangxi

 Shao et al. 2003

21.8

5

 

5.4

27

Wuchiapingian/Longtan F./Heshan

Guangxi

 Dai et al. 2005

15.7

2

  

26

Wuchiapingian/Longtan F./Dafang

Guizhou

 Zhuang et al. 2007

11.8

9

 

2.5

25

Wuchiapingian/Longtan F./Chahe

Guizhou

 Wollenweber et al. 2006

16.5

1

  

26

Wuchiapingian/Longtan F./South China Dahe Coal Mine

Guizhou

 Querol et al. 2001

31.2

1

  

28

Changhsingian/Changxing F./Leping

Jiangxi

 Yang 1996

33.3

2

29.0–37.5

4.3

28

Changhsingian/Changxing F./Anxian

Sichuan

2.4

1

  

20

Changhsingian/Changxing F./Tianfu

Sichuan

6.1

4

4.3–8.7

1.6

23

Changhsingian/Changxing F./Nantong

Chongqing

13.4

7

9.7–16.1

2.0

25

Changhsingian/Changxing F./Qianxibei area

Guizhou

 Han 1996

20.6

4

19.3–23.2

1.6

27

Changhsingian/Changxing F./Xiangxi area

Hunan

29.3

6

23.7–42.4

6.4

28

Changhsingian/Wangjiazhai F./Liupanshui

Guizhou

30.7

1

  

28

Changhsingian/Wangjiazhai F./Qiannan

Guizhou

 Dai et al. 2003

25.6

5

 

9.6

27

Changhsingian/Wangjiazhai F./Zhijin

Guizhou