早侏罗世Toarcian期大洋缺氧事件（T-OAE）是了解地球系统的关键事件之一，但T-OAE事件的特征、驱动因子以及相关黑色页岩和烃源岩形成机制均存在争议。高分辨率陆相沉积对T-OAE响应研究是解决这些争议的关键之一，目前T-OAE的陆相响应研究较少，特别是置于精确年代学格架下的海-陆精细对比研究几乎没有。本申请拟选择四川盆地大安寨段为研究对象首先建立高精度时间标尺，然后进行高分辨率地球化学分析，探索T-OAE事件的陆相响应特征及暗色泥岩形成机制，并探讨T-OAE事件对大安寨段暗色泥岩成烃影响及常规与非常规油气地质意义。通过本项研究，有望从陆相的新视角揭示T-OAE的驱动机制，明晰T-OAE事件对大安寨烃源岩形成和储层发育的影响。研究结果将不仅推动并丰富T-OAE事件研究领域，还将给四川盆地大安寨段的勘探开发提供新思路，因此具有重要的理论与现实意义。

The Early Jurassic Toarcian Oceanic Anoxic Event (T-OAE) is one of the key events for studying Earth System evolution. However, the characteristics, driving factor and formation mechanisms of associated black shales and hydrocarbon of T-AOE are remain controversies. The study on response of high time resolution terrestrial sediments to T-OAE is the key to resolve these remain controversies. However, the researches on T-OAE are focused on marine sequence, and less attention is paid to the continental sediment rocks, especially to the correlation between marine and continental sequences based on precise chronological framework. This research will build a precise time scale for the Lower Jurassic Da’anzhai Member in the Sichuan Basin firstly, and then high resolution geochemistry analyses will be carried out to reveal the characteristics of continental response to T-OAE. The development of the Da’anzhai Member dark mudstones, the impactions on continental source rocks and the petroleum significance for the Da’anzhai Member in Sichuan Basin will be discussed. This study will decipher the driving factor of T-OAE in a new perspective. The results will not only push and expand the T-OAE research field, but also provide new ideal for the exploration and exploitation of the Da’anzhai Member, and even shed new light on the relationship between hydrocarbon source rocks and T-OAE. Thus, this study has important theoretical and practical significance.