[1] 蔡全升，陈孝红，张国涛，等. 2021. 鄂西宜昌地区下古生界五峰组—龙马溪组页岩气储层发育特征与勘探潜力[J]. 石油与天然气地质，42（1）：107-123.

Cai Quansheng, Chen Xiaohong, Zhang Guotao, et al. 2021. Characteristics and exploration potential of the Wufeng-Longmaxi shale gas reservoirs of Lower Paleozoic in Yichang area, western Hubei province, China[J]. Oil & Gas Ge-ology, 42(1): 107-123.
[2] 蔡全升，胡明毅，杨智，等. 2024. 湘西前陆坳陷区五峰-龙马溪组黑色岩系沉积环境与有机质富集机制：以TD2井为例[J]. 地球科学，49（07）：2330-2345.

Cai Quansheng, Hu Mingyi, Yang Zhi, et al. 2024. Sedimentary environment and organic matter accumulation of black rock series of Wufeng-Longmaxi Formations in foreland depression, western Hunan province: An example from well TD2 in Changde area[J]. Earth Science, 49(07): 2330-2345.
[3] 陈孝红，张保民，陈林，等. 2018. 鄂西宜昌地区晚奥陶世—早志留世页岩气藏的主控地质因素与富集模式[J]. 地球学报，39（3）：257-268.

Chen Xiaohong, Zhang Baomin, Chen Lin, et al. 2018. Main geological controlling factors and enrichment pattern of shale gas reservoirs in the Late Ordovician-Early Silurian strata of Yichang, western Hubei province[J]. Acta Geoscientica Sinica, 39(3): 257-268.
[4] 陈旭，樊隽轩，张元动，等. 2015. 五峰组及龙马溪组黑色页岩在扬子覆盖区内的划分与圈定[J]. 地层学杂志，39（4）：351-358.

Chen Xu, Fan Junxuan, Zhang Yuandong, et al. 2015. Subdivision and delineation of the Wufeng and Lungmachi black shales in the subsurface areas of the Yangtze Platform[J]. Journal of Stratigraphy, 39(4): 351-358.
[5] 黄梓桑，王兴志，杨西燕，等. 2021. 沉积环境对页岩中有机质富集的约束：以蜀南地区五峰组—龙马溪组为例[J]. 沉积学报，39（3）：631-644.

Huang Zisang, Wang Xingzhi, Yang Xiyan, et al. 2021. Constraints of sedimentary environment on organic matter accumulation in shale: A case study of the Wufeng-Longmaxi Formations in the southern Sichuan Basin[J]. Acta Sedimentologica Sinica, 39(3): 631-644.
[6] 李琪琪，蓝宝锋，李刚权，等. 2021. 黔中隆起北缘五峰—龙马溪组页岩元素地球化学特征及其地质意义[J]. 地球科学，46（9）：3172-3188.

Li Qiqi, Lan Baofeng, Li Gangquan, et al. 2021. Element geochemical characteristics and their geological significance of Wufeng-Longmaxi Formation shales in north margin of the central Guizhou uplift[J]. Earth Science, 46(9): 3172-3188.
[7] 卢贤志，沈俊，郭伟，等. 2021. 中上扬子地区奥陶纪—志留纪之交火山作用对有机质富集的影响[J]. 地球科学，46（7）：2329-2340.

Lu Xianzhi, Shen Jun, Guo Wei, et al. 2021. Influence of mercury geochemistry and volcanism on the enrichment of organic matter near the Ordovician Silurian transition in the Middle and Upper Yangtze[J]. Earth Science, 46(7): 2329-2340.
[8] 牟传龙，周恳恳，梁薇，等. 2011. 中上扬子地区早古生代烃源岩沉积环境与油气勘探[J]. 地质学报，85（4）：526-532.

Mu Chuanlong, Zhou Kenken, Liang Wei, et al. 2011. Early Paleozoic sedimentary environment of hydrocarbon source rocks in the Middle-Upper Yangtze region and petroleum and gas exploration[J]. Acta Geologica Sinica, 85(4): 526-532.
[9] 聂海宽，张柏桥，刘光祥，等. 2020. 四川盆地五峰组—龙马溪组页岩气高产地质原因及启示：以涪陵页岩气田J Y6-2HF为例[J]. 石油与天然气地质，41（3）：463-473.

Nie Haikuan, Zhang Baiqiao, Liu Guangxiang, et al. 2020. Geological factors contributing to high shale gas yield in the Wufeng-Longmaxi Fms of Sichuan Basin: A case study of well JY6-2HF in Fuling shale gas field[J]. Oil & Gas Geology, 41(3): 463-473.
[10] 沈均均，杨丽亚，王玉满，等. 2025. 中扬子西部下古生界页岩沉积古环境[J]. 沉积学报，43(01)：314-334.

Shen Junjun, Yang Liya, Wang Yuman, et al. 2025. Sedimentary paleoenvironment of the Lower Paleozoic shale in the western Middle Yangtze[J]. Acta Sedimentologica Sinica, 43(01): 314-334.
[11] 苏文博，李志明，史晓颖，等. 2006. 华南五峰组—龙马溪组与华北下马岭组的钾质斑脱岩及黑色岩系：两个地史转折期板块构造运动的沉积响应[J]. 地学前缘，13（6）：82-95.

Su Wenbo, Li Zhi-ming, Shi Xiaoying, et al. 2006. K-bentonites and black shales from the Wufeng-Longmaxi Formations (Early Paleozoic, South China) and Xiamaling Formation (Early Neoproterozoic, North China): Implications for tectonic processes during two important transitions[J]. Earth Science Frontiers, 13(6): 82-95.
[12] 王超，张柏桥，舒志国，等. 2018. 四川盆地涪陵地区五峰组—龙马溪组海相页岩岩相类型及储层特征[J]. 石油与天然气地质，39（3）：485-497.

Wang Chao, Zhang Boqiao, Shu Zhiguo, et al. 2018. Lithofacies types and reservoir characteristics of marine shales of the Wufeng Formation-Longmaxi Formation in Fuling area, the Sichuan Basin[J]. Oil & Gas Geology, 39(3): 485-497.
[13] 王兴，田景春，林小兵，等. 2024. 渝东地区五峰组—龙马溪组沉积环境及有机质主控因素分析：以接龙剖面为例[J]. 沉积学报，42（1）：309-323.

Wang Xing, Tian Jingchun, Lin Xiaobing, et al. 2024. Sedimentary environment and controlling factors of organic matter accumulation in Wufeng Formation-Longmaxi Formation: A case study of Jielong section in eastern Chongqing[J]. Acta Sedimentologica Sinica, 42(1): 309-323.
[14] 王怿，戎嘉余，詹仁斌，等. 2013. 鄂西南奥陶系—志留系交界地层研究兼论宜昌上升[J]. 地层学杂志，37（3）：264-274.

Wang Yi, Rong Jiayu, Zhan Renbin, et al. 2013. On the Ordovician-Silurian boundary strata in southwestern Hubei, and the Yichang uplift[J]. Journal of Stratigraphy, 37(3): 264-274.
[15] 肖斌，刘树根，冉波，等. 2021. 四川盆地北缘五峰组和龙马溪组沉积构造格局研究[J]. 地球科学，46（7）：2449-2465.

Xiao Bin, Liu Shugen, Ran Bo, et al. 2021. Study on sedimentary tectonic pattern of Wufeng Formation and Longmaxi Formation in the northern margin of Sichuan Basin, South China[J]. Earth Science, 46(7): 2449-2465.
[16] 杨平，汪正江，余谦，等. 2019. 四川盆地西南缘五峰—龙马溪组页岩气资源潜力分析[J]. 中国地质，46（3）：601-614.

Yang Ping, Wang Zhengjiang, Yu Qian, et al. 2019. An resources potential analysis of Wufeng-Longmaxi Formation shale gas in the southwestern margin of Sichuan Basin[J]. Geology in China, 46(3): 601-614.
[17] 翟刚毅，王玉芳，包书景，等. 2017. 我国南方海相页岩气富集高产主控因素及前景预测[J]. 地球科学，42（7）：1057-1068.

Zhai Gangyi, Wang Yufang, Bao Shujing, et al. 2017. Major factors controlling the accumulation and high productivity of marine shale gas and prospect forecast in southern China[J]. Earth Science, 42(7): 1057-1068.
[18] 张琳娜，樊隽轩，陈清. 2016. 华南上奥陶统观音桥层的空间分布和古地理重建[J]. 科学通报，61（18）：2053-2063.

Zhang Linna, Fan Junxuan, Chen Qing. 2016. Geographic distribution and palaeogeographic reconstruction of the Upper Ordovician Kuanyinchiao bed in South China[J]. Chinese Science Bulletin, 61(18): 2053-2063.
[19] 张茜，张海全，王剑，等. 2024. 康滇古陆两侧五峰组—龙马溪组沉积演化差异[J]. 沉积学报，42(06)：2144-2158.

Zhang Qian, Zhang Haiquan, Wang Jian, et al. 2024. Sedimentary evolution difference in the black mudstone of Wufeng Formation-Longmaxi Formation on both sides of Kangdian ancient land[J]. Acta Sedimentologica Sinica, 42(06): 2144-2158.
[20] 邹才能，董大忠，王玉满，等. 2015. 中国页岩气特征、挑战及前景（一）[J]. 石油勘探与开发，42（6）：689-701.

Zou Caineng, Dong Dazhong, Wang Yuman, et al. 2015. Shale gas in China: Characteristics, challenges and prospects (I)[J]. Petroleum Exploration and Development, 42(6): 689-701.
[21] Algeo T J, Liu J S. 2020. A re–assessment of elemental proxies for paleoredox analysis[J]. Chemical Geology, 540: 119549.
[22] Algeo T J, Tribovillard N. 2009. Environmental analysis of paleoceanographic systems based on molybdenum-uranium covariation[J]. Chemical Geology, 268(3/4): 211-225.
[23] Barrera I A R, Nogueira A C R, Bandeira J. 2020. The Silurian glaciation in the eastern Parnaíba Basin, Brazil: Paleoenvironment, sequence stratigraphy and insights for the evolution and paleogeography of West Gondwana[J]. Sedimentary Geology, 406: 105714.
[24] Cai Q S, Hu M Y, Kane O I, et al. 2022. Cyclic variations in paleo-environment and organic matter accumulation of the Upper Ordovician–Lower Silurian black shale in the Middle Yangtze region, South China: Implications for tectonic setting, paleo-climate, and sea-level change[J]. Marine and Petroleum Geology, 136: 105477.
[25] Chen L, Lu Y C, Jiang S, et al. 2015. Sequence stratigraphy and its application in marine shale gas exploration: A case study of the Lower Silurian Longmaxi Formation in the Jiaoshiba shale gas field and its adjacent area in southeast Sichuan Basin, SW China[J]. Journal of Natural Gas Science and Engineering, 27: 410-423.
[26] Chen X, Rong J Y, Li Y, et al. 2004. Facies patterns and geography of the Yangtze region, South China, through the Ordovician and Silurian transition[J]. Palaeogeography, Palaeoclimatology, Palaeo-ecology, 204(3/4): 353-372.
[27] Dong D Z, Shi Z S, Guan Q Z, et al. 2018. Progress, challenges and prospects of shale gas exploration in the Wufeng–Longmaxi reservoirs in the Sichuan Basin[J]. Natural Gas Industry B, 5(5): 415-424.
[28] Fan J X, Melchin M J, Chen X, et al. 2011. Biostratigraphy and geography of the Ordovician–Silurian Lungmachi black shales in South China[J]. Science China Earth Sciences, 54(12): 1854-1863.
[29] Gorjan P, Kaiho K, Fike D A, et al. 2012. Carbon– and sulfur–isotope geochemistry of the Hirnantian (Late Ordovician) Wangjiawan (Riverside) section, South China: Global correlation and environmental event interpretation[J]. Palaeogeography, Palaeoc-limatology, Palaeoecology, 337-338: 14-22.
[30] Haq B U, Schutter S R. 2008. A chronology of Paleozoic sea-level changes[J]. Science, 322(5898): 64-68.
[31] Huang H Y, He D F, Li D, et al. 2020. Geochemical characteristics of organic–rich shale, Upper Yangtze basin: Implications for the Late Ordovician–Early Silurian orogeny in South China[J]. Palaeo-geography, Palaeoclimatology, Palaeoecology, 554: 109822.
[32] Huang H Y, He D F, Li Y Q, et al. 2018. Silurian tectonic–sedimentary setting and basin evolution in the Sichuan area, Southwest China: Implications for palaeogeographic reconstructions[J]. Marine and Petroleum Geology, 92: 403-423.
[33] Li N, Li C, Fan J X, et al. 2019. Sulfate-controlled marine euxinia in the semi-restricted inner Yangtze Sea (South China) during the Ordovician-Silurian transition[J]. Palaeogeography, Palaeo-climatology, Palaeoecology, 534: 109281.
[34] Liu J B, Rong J Y, Chen X. 2001. How the Gondwana glaciation induced the deposition of Hirnantian carbonates (Latest Ordovician) in South China[J]. Gondwana Research, 4(4): 688-689.
[35] Liu Z H, Algeo T J, Guo X S, et al. 2017. Paleo–environmental cyclicity in the Early Silurian Yangtze Sea (South China): Tectonic or glacio-eustatic control?[J]. Palaeogeography, Palaeoclimatology, Palaeoecology, 466: 59-76.
[36] Lu Y B, Huang C J, Jiang S, et al. 2019. Cyclic Late Katian through Hirnantian glacioeustasy and its control of the development of the organic-rich Wufeng and Longmaxi shales, South China[J]. Palaeogeography, Palaeoclimatology, Palaeoecology, 526: 96-109.
[37] Ma Y Q, Fan M J, Lu Y C, et al. 2016. Geochemistry and sedimentology of the Lower Silurian Longmaxi mudstone in southwestern China: Implications for depositional controls on organic matter accumulation[J]. Marine and Petroleum Geology, 75: 291-309.
[38] Maletz J, Wang C S, Wang X F. 2021. Katian (Ordovician) to Aeronian (Silurian, Llandovery) graptolite biostratigraphy of the YD-1 drill core, Yuanan county, Hubei province, China[J]. Papers in Palaeontology, 7(1): 163-194.
[39] McLennan S M. 1993. Weathering and global denudation[J]. The Journal of Geology, 101(2): 295-303.
[40] Melchin M J, Mitchell C E, Holmden C, et al. 2013. Environmental changes in the Late Ordovician-Early Silurian: Review and new insights from black shales and nitrogen isotopes[J]. Geological So-ciety of America Bulletin, 125(11/12): 1635-1670.
[41] Munnecke A, Calner M, Harper D A T, et al. 2010. Ordovician and Silurian sea-water chemistry, sea level, and climate: A synopsis[J]. Palaeogeography, Palaeoclimatology, Palaeoecology, 296(3/4): 389-413.
[42] Nesbitt H W, Young G M. 1982. Early Proterozoic climates and plate motions inferred from major element chemistry of lutites[J]. Nature, 299(5885): 715-717.
[43] Price J R, Velbel M A. 2003. Chemical weathering indices applied to weathering profiles developed on heterogeneous felsic metamorphic parent rocks[J]. Chemical Geology, 202(3/4): 397-416.
[44] Qiu Z, Zou C N, Mills B J W, et al. 2022. A nutrient control on expanded anoxia and global cooling during the Late Ordovician mass extinction[J]. Communications Earth & Environment, 3(1): 82.
[45] Rimmer S M. 2004. Geochemical paleoredox indicators in Devonian–Mississippian black shales, Central Appalachian Basin (USA)[J]. Chemical Geology, 206(3/4): 373-391.
[46] Taylor S R, McLennan S M. 1985. The continental crust: Its composition and evolution[M]. Oxford: Blackwell Scientific Publications: 1-312.
[47] Tribovillard N, Algeo T J, Lyons T, et al. 2006. Trace metals as paleoredox and paleoproductivity proxies: An update[J]. Chemical Ge-ology, 232(1/2): 12-32.
[48] Wang H Y, Shi Z S, Sun S S. 2021. Biostratigraphy and reservoir characteristics of the Ordovician Wufeng Formation-Silurian Longmaxi Formation shale in the Sichuan Basin and its surrounding areas, China[J]. Petroleum Exploration and Development, 48(5): 1019-1032.
[49] Wang P, Du Y S, Yu W C, et al. 2020. The Chemical Index of Alteration (CIA) as a proxy for climate change during glacial–interglacial transitions in Earth history[J]. Earth-Science Reviews, 201: 103032.
[50] Wang Y X, Xu S, Hao F, et al. 2019. Geochemical and petrographic characteristics of Wufeng-Longmaxi shales, Jiaoshiba area, Southwest China: Implications for organic matter differential accumulation[J]. Marine and Petroleum Geology, 102: 138-154.
[51] Yan D T, Chen D Z, Wang Q C, et al. 2010. Large–scale climatic fluctuations in the latest Ordovician on the Yangtze Block, South China[J]. Geology, 38(7): 599-602.
[52] Yan D T, Chen D Z, Wang Z Z. 2019. Climatic and oceanic controlled deposition of Late Ordovician–Early Silurian black shales on the north Yangtze Platform, South China[J]. Marine and Petroleum Geology, 110: 112-121.
[53] Zou C N, Qiu Z, Poulton S W, et al. 2018. Ocean euxinia and climate change “double whammy” drove the Late Ordovician mass extinction[J]. Geology, 46(6): 535-538.