Sequence stratigraphy and coal accumulation of the Upper Permian in Zhijin-Nayong Coalfield of western Guizhou Province
Guo Lijun1,2, Hong Yuanjin3, Shao Longyi2, Yi Tongsheng3, Zhang Weiping3, Wang Hao2
1 Tianjin Institute of Geological Survey，Tianjin300191 2 School of Geoscience and Survey Engineering，China University of Mining and Technology(Beijing)，Beijing100083 3 Guizhou Administration of Coal Geology，Guiyang553009，Guizhou
Abstract The Zhijin-Nayong Coalfield in western Guizhou Province is well developed with marine-continental transitional facies and limestone markers，and thus became an ideal area for studying the Late Permian sedimentary facies and sequence stratigraphy in southwestern China.This paper has analyzed the high resolution sequence stratigraphy of the Late Permian coal seams(the Longtan and Changxing Formations).The coal-accumulating characteristics in the sequence stratigraphic framework have been discussed.Sequence boundaries represented by regional unconformity，incised valley filling sandstone base，and the palaeosol horizons have been identified.Combined with the transgression-regression cycles inferred by the distribution patterns of the limestone markers，the coal seams are subdivided into 3 third-order sequences.The total coal seams are is thicker in sequence Ⅲ and thinner in sequence Ⅱ，with the thinnest in sequence Ⅰ.Within the sequence，the thickest coals were developed in the transgressive systems tract and the thinnest coals were preserved in the lowstand systems tract.Based on reconstruction of the Late Permian sequence stratigraphic framework，we propose that the thick coal seams were developed in the delta plain environments of the transgressive systems tract.
About author: Guo Lijun，born in 1985，has obtained his masters degree from China University of Mining and Technology(Beijing)in 2010，and now he is working in Tianjin Institute of Geological Survey.He is mainly engaged in geological prospecting.E-mail:276692450@qq.com. About the corresponding author Shao Longyi is a professor of School of Geoscience and Surveying Engineering，China University of Mining and Technology(Beijing).E-mail: ShaoL@cumtb.edu.cn.
Cite this article:
Guo Lijun,Hong Yuanjin,Shao Longyi et al. Sequence stratigraphy and coal accumulation of the Upper Permian in Zhijin-Nayong Coalfield of western Guizhou Province[J]. JOURNAL OF PALAEOGEOGRAPHY, 2011, 13(5): 493-500.
Guo Lijun,Hong Yuanjin,Shao Longyi et al. Sequence stratigraphy and coal accumulation of the Upper Permian in Zhijin-Nayong Coalfield of western Guizhou Province[J]. JOPC, 2011, 13(5): 493-500.
龚绍礼，张春晓.1999.华南二叠纪盆地层序地层特征及聚煤规律［J］.地学前缘，6（增刊）：167-173. 郝黎明.2000.克拉通盆地含煤岩系高分辨率层序地层学研究［D］.中国矿业大学（北京）博士学位论文. 李增学，余继峰，杜振川.2001.含煤地层高分辨率层序地层研究的现状与展望［J］.山东科技大学学报（自然科学版），20（4）:8-12. 罗忠，邵龙义，姚光华，等.2008.滇东黔西上二叠统含煤岩系黏土矿物组成及环境意义［J］.古地理学报，10（3）：297-304. 梅冥相，郑宽兵，初汉民，等.2004.滇黔桂盆地及邻区二叠纪层序地层格架及古地理演化［J］.古地理学报，6（4）:401-418. 邵龙义，张鹏飞，田宝霖，等.1993.地学探索·第八辑·黔西织纳地区晚二叠世含煤岩系层序地层及海平面变化［M］.湖北武汉：中国地质大学出版社，1-10. 邵龙义，刘红梅，田宝霖，等.1998.上扬子地区晚二叠世沉积演化及聚煤［J］.沉积学报，16（2）:56-60. 邵龙义，鲁静，汪浩，等.2008.近海型含煤岩系沉积学及层序地层学研究进展［J］.古地理学报，10（6）：561-570. 王成善，陈洪德，寿建峰，等.1999.中国南方二叠纪层序地层划分与对比［J］.沉积学报，17（4）:499-509. Aitken J F， Flint S S.1995.The application of high resolution sequence stratigraphy to fluvial systems: A case study from the Upper Carboniferous Breathitt Group，eastern Kentucky，USA［J］.Sedimentology，42(1):3-30. Bohacs K，Suter J.1997.Sequence stratigraphic distribution of coaly rocks: Fundamental controls and paralic examples［J］.AAPG Bulletin，81: 1612-1639. Cross T A.1988.Controls on coal distribution in transgressive-regressive cycles，Upper Cretaceous，Western Interior，USA［M］.In:Wilgus C K（eds）.Sea-Level Changes: An Integerated Approach.Society of Economic Paleontologists and Mineralogists，Special Publication，42: 371-380. Diessel C F K，Boyd R，Wadsworth J， et al.2000.On balanced and unbalanced accommodation/peat accumulation ratios in the Cretaceous coals from Gates Formation，Western Canada，and their sequence stratigraphic significance［J］.International Journal of Coal Geology，43: 143-186. Flint S S，Aitken J F，Hampson G.1995.Application of sequence stratigraphy to coal-bearing coastal plain successions: Implications for the UK coal measures［M］. In: Whateley M K G， Spears D A（eds）.European Coal Geology.Geological Society of London，Special Publication，82: 1-16. Hamilton D S， Tadros N Z.1994.Utility of coal seams as genetic stratigraphic sequence boundaries in non-marine basins: An example from the Gunnedah basin，Australia［J］.AAPG Bulletin，78(2):267-286. Holz M，Kalkreuth W，Banerjee Ⅰ.2002.Sequence stratigraphy of paralic coal-bearing strata: An overview［J］.International Journal of Coal Geology，48: 147-179. Shao Longyi，Hao Liming，Yang Lijun et al.1999.High resolution sequence stratigraphy of the Late Permian coal measures in southern China［M］.In: Xie H, Golosinski T S(eds).Mining Science and Technology ’99.A.A.Balkema，Rotterdam.239-242. Stach E，MackowskyM T，Teichmuller M， et al. 1982.Stachs Textbook of Coal Petrology［M］.Borntraeget，Stuttgart，3rd ed，535.
