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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