Fig. 1 Showing the study area of the Early Permian Taiyuan Formation in Henan province modified from Guo Xinian et al ~ 3

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1 ACTA SEDIMENTOLOGICA SINICA Vol. 29 No. 5 Oct ~ ~ ~ 3 4 ~ 5 / songhuibo2005@ hpu. edu. cn hub@ hpu. edu. cn P A 0 / 1 1 ~ OTMP

2 Fig. 1 Showing the study area of the Early Permian Taiyuan Formation in Henan province modified from Guo Xinian et al ~ 3 4 ~ 5 2 ~ 3 2 ~ 3 1 ~ 3 4 ~ 5

3 Fig. 2 2 The sedimentary facies column of the Lower Permian Taiyuan Formation in Henan province

4 ~ 169 m 68 m 70 ~ 90 m Thalassinoides Ophiomorpha Rhizocorallium Pseudoschwagerina Gordia Lepidodendron szeianum L. posthumii Neuropteris ovata Assemblage Zone 6 Asselian Artinskian ~ Ⅰ Ⅰ Ⅰ Fig. 3 3 The sedimentary types and their environment distribution mode of the Taiyuan Formation Henan Province

5 Ⅲ Ⅱ- 5 Zoophycos U Rhizocorallium Taenidium Planolites Zoophycos Ⅳ ~ 4 cm 2 3 Zoophycos Zoophycos Rhizocorallium Planolites Caninia Ⅱ L 5 L Ⅳ Ⅰ Zoophycos 95% Syringopora Ⅳ-3

6 ~ 18 cm 7 ~ 12 cm + 3 Ⅴ-1 Zoophycos 20 cm Ⅳ-4 16 ~ 25 cm Zoophycos 1 Teichich- Planolites nus 2 Nereites Chondrites 3 Zoophycos Ⅳ ~ 130 m m m ~ 130 m 50 m Zoophycos Nereites Chondrites Teichichnus Planolites 3 L m

7 Fig. 4 4 Isoline map of thickness m of the Taiyuan Formation in Henan province 2 / m / 15 m 35 m 5 / Lobabaird- Cryptobairdia Lingula 37 ia 6 15 m Lepidodendron szeianum L. posthumii

8 5 883 Neuropteris ovata Assemblage Zone Ⅱ 1 Ⅲ Zoophycos Nereites 2 Zoophycos Taenidium 3 Ophiomorpha Thalassinoides m 7 Ⅰ Fig. 5 5 / Isoline map of the ratio of sand to mudstone of the Taiyuan Formation in Henan province

9 Fig. 6 6 Isoline map of thickness m of the carbonate rock of the Taiyuan Formation in Henan province Fig. 7 7 Sedimentary assemblage types of the Taiyuan Formation in Henan province 2

5 885 / 8 Ⅱ Ⅰ 1 1 Ⅱ 2 2 Ⅰ / < 0. 5 3 70 m Ⅱ 1 Ⅰ 1 2 2 Fig.

10 5 885 / 8 Ⅱ Ⅰ 1 1 Ⅱ 2 2 Ⅰ / < m Ⅱ 1 Ⅰ Fig. 8 8 The lithofacies paleogeographic map of the Early Permian sedimentary period of the Taiyuan Formation in Henan Province

11 Ⅰ Ⅲ 5 2 Ⅲ 2 / > Ⅲ 5 Ⅲ 3 Ⅱ Ⅱ / References 1. M Yang Qi. Sedimentary Environment and Coal-Accumulating Characteristics of the Late Paleozoic Coal Series of Yu Xian Henan M. Beijing Geological Publishing House J Li Baofang Li Zhen Fu Zeming et al. The depositional filling coal accumulation characteristics and tectonic evolution of the late Paleozoic 1

12 5 887 Epiric Sea in the South of North China J. Earth Science-Journal of China University of Geosciences J. M Zhang Pei Fang. The North China Haiqing Li Jinhua Xi Yunhong et al. Stratigraphic and Paleontologic Research of Henan Province-the Late Paleozoic Pattern of North China M. Zhengzhou Yellow River Conservancy Press Type Permo-Carboniferous Fusulinid and conodont biostratigraphic u- nits of Henan Province J. Journal of Stratigraphy M. J Pei Fang. Multiple stratigraphic division and correlation of the Permo-Carboniferous Guo Xinian Tang Zhonglin Li Wancheng et al. Late Palaeozoic Coal-accumulating Laws in of Yuzhou of Henan and Taiyuan of Shanxi J. Regional Geology of Henan Province M. Wuhan China University of Geosciences Press M Pan Zecheng. Summariy of several Chen Shiyue. Late Paleozoic Sequence Stra- characteristics on Carboniferous rocky stratigraphy of north China plat- tigraphy and Coal-accumulating Laws in North China Region M. Shandong China University of Petroleum Press M Yang Guanxiu et al. The Permian Cathaysian Flora in Western Henan Province China Yuzhou Flora M. Beijing Geological Publishing House J. Journal of Stratigraphy eral fauna from Yuxian Henan J. Acta Micropalaeontologica Sini- 8. J. ca Pei Fang. North China Type Permo- Carboniferous multiple stratigraphic division and correlation in Henan Province J. Henan Geology M. shallow marine carbonates of Jiaozuo Henan J. Acta Sedimentologica Sinica Xia Guoying 1-14 Ding Yunjie. The Permo-Carboniferous Fusulinida and Coral of Henan Province M. Tianjin Institute of Geology and Mineral Resources of Chinese Academy of Geological Sciences Special Issue J Liang Xiangyuan. Biozone from the Taiyuan Formation of Xingyang and Gongxian of area Henan J. Journal of Stratigraphy China J. form type in Henan Province J. Henan Geology J Fan Bingheng He Xilin Shen Shuzhong. Research on the Late Paleozoic Brachiopod fauna in north China platform J. Journal of China University of 7. J. Mining & Technology Wang Zhihao Zhang Wensheng. Conodont discovery of the upper Taiyuan Formation from Yu Xian Henan 15. J Zheng Hong. Late Palaeozoic small foraminif- 16. J Wu Xiantao Hu Bin Wang Guanzhong et al. Storm deposits in upper Carboniferous 17. J Hu Bin Zhou Fang Song Huibo. Ichnofossils and their sedimentary environments in the lower Permian Taiyuan Formation in Jiaozuo Area Henan Province J. Journal of Palaeogeography Characteristics of Lithofacies Paleogeography of the Taiyuan Formation Sedimentary Period Henan Province SONG Hui-bo HU Bin ZHANG Lu LIU Shun-xi NIU Yong-bin Institute of Resources and Environment Henan Polytechnic University Key Laboratory of Biogenic Traces & Sedimentary Minerals of Henan Province Jiaozuo Henan Abatract The sedimentary area of the Early Permian Taiyuan Formation in Henan Province is located in the south of north China basin and to the north of Luanchuan-Gushi deep fault in the North Qingling fold belt at that time this sedimentary basin was controlled by the tectono-paleogeographic features of the west uplift in the North China platform block. The Taiyuan Formation was a part of deposits of the North-China epicontinental sea or carbonate platform in the

13 Late Paleozoic and developed a set of deposits of the epicontinental sea characterized by the carbonate rocks intercalated some clastic rocks and coal. This section is mainly composed of gray dark gray thin-medium bedded bioclastic limestones intercalated with thin-medium bedded mudstone micritic limestone fine sandstone siltstones and thin coals locally appeared light gray thick beded moderate-fine grained sandstone coarse sandstone or gray-white quartz sandstone with very abundant body fossils such as fusulinids conodonts brachiopods corals crinoids bivalves and plants fossils and so on. According to the analysis of sedimentary sequence the Taiyuan Formation can be divided into three units from bottom to top the lower limestone unit mainly containing 4 ~ 5 limestone layers the middle clastic unit dominated by sandstone and mudstone intercalated with 1 ~ 3 layers of limestone unstable bioclastic microcrystalline limestone the upper limestone unit composed of 2 ~ 3 layers of limestone locally 4 ~ 5 layers. Based on the isoline trend analysis including the thickness of the formation and carbonate rock and the ratio of sand to mudstone along with the composition and distribution features of ichnofossils facies fossils and sedimentary assemblage types 5 sedimentary facies tidal-flat lagoon barrier island or sand bar restricted carbonate platform and open carbonate platform facies 12 kinds of sedimentary types 3 sedimentary assemblage types and 3 types of lithofacies areas as the micritic limestone and mudstone lithofacies area of restricted flatform-tidal flat setting limestone and clastic lithofacies area of open platform-tidal-lagoon setting and limestone and clastic lithofacies area of open platform-barrier island-tidal flat setting can be suggested. The Lithofacies palaeogeographic characteristics of Henan province during the deposit of the Taiyuan Formation display 1 The marine invasion is widespread and limestone of shallow sea facies is almost throughout the whole sedimentary region 2 Sealine extended eastward and southward to Lingbao-Luoning-Songxian-Fangcheng-Biyang zone 3 Old land areas are situated the Funiu mountain to sorthwest of this basin and Zhongtiao Mountain to west of this basin 4 Paleotopography shows steep in the west gentle in the east high relief in the northwest and low relief in the southeast 5 The sedimentary zone of largest thickness of this formation is in the northeast and east of this basin 6 Seawater invasion was from the east and northeast and regression from northwest to southeast. In the Taiyuan Formation sedimentary period the basement terrain of this sedimentary basin was relatively gentle and sea water was frequently progressive and regressive thereby the interbeds of carbonate rocks of the restricted epicontinental sedimentary environment and coal-bearing clastic rock of tidal flat sedimentary setting were generated and the larger area peat flat were developed in the coastal plain in Henan Province and the coal layers with industrial value were formed in many parts. sedimentary facies lithofacies paleogeography the Taiyuan Formation the Early Permian Henan prov- Key words ince

GLOBAL GEOLOGY Vol. 29 No. 3 Sept P531 A doi /j. issn

29 3 2010 9 GLOBAL GEOLOGY Vol. 29 No. 3 Sept. 2010 1004-5589 2010 03-0363 - 10 1 2 1. 123000 2. 110032-4 4 P531 A doi 10. 3969 /j. issn. 1004-5589. 2010. 03. 002 Characteristics of lithofacies palaeography