There are widespread Mesozoic-Cenozoic terrestrial volcanic activities in East China, and they produced favorable geologic factors for the volcanic reservoirs. To reveal the spatio-temporal evolution of regional volcanisms and their tectonic setting, we subdivide Mesozoic-Cenozoic volcanic activities into 6 volcanic cycles (I-VI), and summarize the temporal-spatial distribution, rock association and tectonic setting of each cycle. The Cycle I forms a post-orogenic intraplate bimodal volcanic association. The cycles II and III include arc volcanic associations formed in compressional and extensional subduction environments, respectively. The Cycle IV contains a post-orogenic arc bimodal association. The Cycle V is a basaltic association of tholeiite series under initial rift setting, and the Cycle VI is basaltic association of alkaline series under typical rift setting. The volcanic strata between each cycle are bounded by regional unconformity. The above 6 volcanic cycles correspond to 6 sequential stages of tectonic evolutions from the Early Jurassic post-orogeny, the Mid-Jurassic-Cretaceous subduction of the paleo-Pacific Plate to the Cenozoic marginal rifting. According to the geological characteristics of volcanic reservoirs in different volcanic cycles, it is put forward that the Cycle V is the major formation period of volcanic reservoirs in East China and should be the focus of exploration, and that the volcanic reservoirs of the Cycle IV are also worthy of attention.

华东地区中、新生代陆相火山活动广泛，为火山岩储集层提供了有利的地质条件。为了揭示区域火山活动的时空演化及其构造背景，我们将中新生代火山活动细分为6个火山旋回（I-VI），并总结了每个旋回的时空分布、岩石组合和构造背景。旋回 I 形成了造山后的板内双峰火山组合。旋回 II 和 III 分别包括在压缩和伸展俯冲环境中形成的弧火山组合。周期 IV 包含一个造山后弧双峰关联。旋回 V 是初始裂谷背景下拉斑岩系列的玄武岩组合，循环VI是典型裂谷背景下碱性系列的玄武岩组合。每个旋回之间的火山地层都以区域不整合面为界。上述6个火山旋回对应于早侏罗世后造山、古太平洋板块中侏罗世-白垩世俯冲到新生代边缘裂谷的6个连续的构造演化阶段。根据不同火山旋回火山岩储集层地质特征，提出旋回Ⅴ是华东地区火山岩储层的主要形成期，应作为勘探重点，旋回Ⅳ火山岩储集层为也值得关注。上述6个火山旋回对应于早侏罗世后造山、古太平洋板块中侏罗世-白垩世俯冲到新生代边缘裂谷的6个连续的构造演化阶段。根据不同火山旋回火山岩储集层地质特征，提出旋回Ⅴ是华东地区火山岩储层的主要形成期，应作为勘探重点，旋回Ⅳ火山岩储集层为也值得关注。上述6个火山旋回对应于早侏罗世后造山、古太平洋板块中侏罗世-白垩世俯冲到新生代边缘裂谷的6个连续的构造演化阶段。根据不同火山旋回火山岩储集层地质特征，提出旋回Ⅴ是华东地区火山岩储层的主要形成期，应作为勘探重点，旋回Ⅳ火山岩储集层为也值得关注。