本书是国际上首部描述和论证中国扬子区奥陶系－志留系含页岩气地层时空分布的专著。通过对四川盆地及其周边地区40多个钻井岩芯以及地表露头资料生物地层学研究，厘定了扬子区奥陶纪末期一志留纪初期笔石带的划分，综述了扬子区及全球奥陶纪末期－志留纪初黑色页岩的分布与特征，及其各项含气指标的变化、有机质的富集、物理指标分布规律、与斑脱岩分布的关系等，建立了扬子区与世界其他主要地区含页岩气地层的高精度对比关系；证实了龙马溪组黑色页岩在上扬子黔渝地区的阶段渐进展布模式和中扬子宜昌上升范围内的圈层展布模式，论证了扬子区奥陶纪末期－志留纪初期的页岩气都产自五峰组第2个至龙马溪组第6个笔石带内，直接指导了扬子区页岩气的勘探与开发，为我国大力实施页岩气能源战略提供了科学支撑，也是基础研究应用于国民经济主战场的重要实践。本书可作为从事地质学、地层古生物学以及页岩气等非常规油气资源勘探开发的专业人员或者高校师生的重要参考书。

1 Introduction
CHEN Xu and WANG Itongyan
1.1 Shale Gas Development in the United States
1.2 Major Shale Gas Fields in the World
1.3 Shale Gas Development in China
References
2 Geological Setting of the Ordovician and Silurian Strata of
the Yangtze Platform
CHEN Xu, ZHANG Yuandong, LI Yue, and FAN Junxuan
References
3 Ordovician to Silurian Shale Gas-Bearing Strata from
the Yangtze Region
CHEN Xu, WANG Hongyan, LIANG Feng, CHEN Qing, LOU Chao, ZHOU Zhi,
WANG Wenhui, LI Jia, and LIU Dexun
3.1 Upper Yangtze: Sichuan Basin and Periphery
3.2 Middle Yangtze: Three Gorges Region
3.3 Lower Yangtze Platform and Chiangnan Transitional Belt
References
4 Distribution Pattern of the Ordovician-Silurian Shale Gas-Bearing
Strata in the Yangtze Region
CHEN Xu, WANG Hongyan, NIE Haikuan, and WU Jin
4.1 Sweet Beds and Their Distribution of the Ordovician to Silurian Shale Gas Strata in the Yangtze Region
4.2 Early Silurian Disaster Graptolites and Their Rich Organic Horizons in the Yangtze Region
4.3 Shale Gas Enrichment and Highly Productive Interval in the Yangtze Region
4.4 Case Study of Weiyuan-Changning Shale Gas Field
4.5 Case Study of Fuling Shale Gas Field
References
5 Regional and Global Correlation of the Latest Ordovician to Early
Silurian Shale Gas-Bearing Strata
CHEN Xu, CHEN Qing, ZHANG Di, WANG Hongyan, LIANG Feng, LI Jia, and SUN Shasha
5.1 Regional Correlation of the Wufeng and Lungmachi Formations in the Yangtze Region
5.2 A Global Correlation of Two Black Shales Through the Ordovician and Silurian Boundary
References
6 Paleogeography and Paleoenvironment Across the Ordovician-
Silurian Transition in the Yangtze Region
CHEN Qing, CHEN Jitao, LI Wenjie, and SHI Zhensheng
6.1 Research History
6.2 Distribution Patterns of Black Shales During the Ordovician-Silurian Transition in South China
6.3 Microfacies Analyses of the Shale Gas Drill Cores in Weiyuan and Luzhou Areas
6.4 Sedimentary Processes During the Late Ordovician to Early Silurian
6.5 Bioevents and Environmental Change from the Late Ordovician to Early Silurian
References
7 Gamma Log Responses Through the Ordovician-Silurian Black
Shale Graptolite Zonal Succession in the Middle and Upper
Yangtze Regions
ZHAO Qun, LI Chao, SUN Shasha, and GUO Wei
7.1 Theoretical Basis
7.2 Curve Characteristics of GR Logs in Black Shale Graptolite Zones
7.3 Global Nature of the GR
7.4 Correlation Between the Himantian Isotope Carbon Excursion and Graptolite Biozones in the Ordovician-Silurian Transition of the Xike-1 Drillcore in Guizhou
References
8 Volcanic Ash Deposition and Organic Matter Enrichment in
the Black Shales of the Wufeng-Lungmachi Formations in
the Yangtze Region
QIU Zhen and GE Xiangying
8.1 Study Background
8.2 Overview of the Geologic Setting and Deposition of Volcanic Ash
8.3 Study Method and Sample Collection
8.4 Characteristics and Source of Volcanic Ash (K-Bentonite)
8.5 Contribution of Volcanic Ash Deposits to the Enrichment of Organic Matter
8.6 Prospecting
References
Appendix Plates and Explanation
CHEN Xu, WANG Weijuan, and LIN Changmu
Reference