5 : 7 [11-12] ( ) [13-14] Diessel [12] TPI/GI [15-16] (K3) 1 K1 50% K2 K3 K7 K2 K3 (20%~30%) K2 K10 1 Fig.1 Lithotypes of major coal seams 2.2 1

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1 41 5 Vol. 41 No COAL GEOLOGY & EXPLORATION Oct : (2013) , ( ) : (ICCP), P A DOI: /j.issn Coal petrology and coal facies of Zhongliangshan mining area, Chongqing HOU Xianxu 1, TANG Yuegang 1, SONG Xiaoxia 1, 2, YANG Mingxian 3, GUO Mingtao 1, JIA Long 1 (1. School of Geosciences and Surveying Engineering, China University of Mining and Technology, Beijing , China; 2. College of Mining Technology, Taiyuan University of Technology, Taiyuan , China; 3. Chongqing Institute of Geology and Mineral Resources, Chongqing , China) Abstract: The main coal seams in Zhongliangshan mining area are analyzed by drawing macerals ternary diagrams and coal facies diagrams in consideration of the maceral classification of ICCP 1994 system. The seams are characterized by the predominance of semi clairain and a lot of structural coal, which is a result of Epigenetic tectonic activity. The petrographic composition is dominated by vitrinite, in which collodetrinite and vitrodetrinite are the major macerals. The sedimentary environments deduced from petrographic composition and coal facies diagrams vary from low delta plain to limnic environment, which belong to Rheotrophic, the mires were influenced by marine flooding. Key words: coal petrology; Zhongliangshan mining area; macerals; coal facies (P 3 l) 26.50~ m m 10 ( K1 K10) % [1-2] [3-5] K6 ( ) GB/T [6] GB/T [7] GB/T [8] (ICCP)1994 [9] 3 [10] ( ) : : ( ); (Dyy ) : (1988 ),.

5 : 7 [11-12] ( ) [13-14] Diessel [12] TPI/GI [15-16] 2 2.

1 Lithotypes of major coal seams 2.2 1 38.4%~84.8% 69.8% 6.7%~28.2% 14.3% 5.

2 5 : 7 [11-12] ( ) [13-14] Diessel [12] TPI/GI [15-16] (K3) 1 K1 50% K2 K3 K7 K2 K3 (20%~30%) K2 K10 1 Fig.1 Lithotypes of major coal seams %~84.8% 69.8% 6.7%~28.2% 14.3% 5.3%~47.5% 15.9% 50%( 2a) 50%( 2b) ph [9] ( 2c) 3 [9] a. 2 Fig. 2 Petrographic characteristics of coal samples b. c. ( 1 2d) K3-3

3 % K % 2.3 (GI) (TPI) (GWI) (VI) 4 4 [17-22] TPI-GI VI-GWI Diessel [12] Calder [11] 4 TPI GI TPI TPI ph ph TPI GI GI TPI GI 1 GI-TPI 3a GI-TPI (Terrestrial) (piedmont plain) (Dry forest swamp) (Upper delta plain) (Wet forest swamp) (Limnic) (Lower delta plain) [12 19] [23] GWI GWI VI VI [11] TPI GI 0.1~ ~18.7 TPI GI GI-TPI ( 3a) GWI VI 1.0~ ~1.2 K3-4 GWI % 35.9%( ) GWI (3.9%) 3b VI 3 a. b. 60% ( ) c. TPI VI TPI-GI VI-GWI

4 第 5 期侯贤旭等 : 重庆中梁山矿区主要煤层的煤岩学和煤相特征 9

5 10 41 Fig. 3 3 Coal facie diagrams based on macerals and mineral matter for studied coals [1]. K-1 [J] (1) [2]. [J] (5) [3]. [J] (3) [4]. [J]. ( ) 2011 (6) [5]. [J]. 2007(6) 5 8. [6]. GB/T [S] [7]. GB/T [S] [8]. GB/T [S] [9] ICCP. The new vitrinite classification (ICCP System1994)[J]. Fuel (5) [10] ICCP. The new inertinite classification (ICCP System 1994)[J]. Fuel (4) [11] CALDER JH GIBLING M R MUKHOPADHYAY P K. Peat formation in a Westphalian B piedmont setting Cumberland Basin Nova Scotia implications for the maceral-based interp tation of rheotrophic and raised paleomires[j]. Bulletin de la Societe Geologique de France (2) [12] DIESSEL C F K. On the correlation between coal facies and depositional environments[c] //Proceedings symposium on advances in the study of the Sydney Basin. Newcastle Newcastle University [13] DEHMER J. Petrological and organic geochemical investigation of recent peats with known environments of deposition[j]. International Journal of Coal Geology (2/4) [14] MOORE T A SHEARER J C. Peat/coal type and depositional environment-are they related?[j]. International Journal of Coal Geology (3/4) [15] DIESSEL C F K. Utility of coal petrology for sequence stratigraphic analysis[j]. International Journal of Coal Geology (1/3) [16] IZART A SACHSENHOFER R F PRIVALOV V A. Stratigraphic distribution of macerals and biomarkers in the Donets Basin Implications for paleoecology paleoclimatology and eustacy[j]. International Journal of Coal Geology (1/2) [17]. [J] (2) [18]. [J] (1) [19]. [J]. (D ) 2007 ( 1) [20]. [J]. 2007(5) 4 7. [21]. [J] (1) [22]. [J] (5) [23]. [M]

1 GIS 95 Y = F y + (1 F) (1) 0 0 Y0 kg/hm 2 /day F y 0 y c kg/hm 2 /day [12] y m 20 kg/hm 2 /hour Y = cl cn ch G [ F( y ) T m yo + (2) (1 F)(

1 GIS 95 Y = F y + (1 F) (1) 0 0 Y0 kg/hm 2 /day F y 0 y c kg/hm 2 /day [12] y m 20 kg/hm 2 /hour Y = cl cn ch G [ F( y ) T m yo + (2) (1 F)( 24 1 Vol.24 No.1 94 2008 1 Transactions of the CSAE Jan. 2008 2008 1 100094 2 100035 3 100081 4 100081 5 100101 GIS ( ) 65.12 16.82 13.74 15.27 11.07 t/(hm 2 a) 10.93% 41.43% 46.93% 65.4%. Bi Jiye, Zhu