Mesozoic–Cenozoic Volcanic Cycle and Volcanic Reservoirs in East China
在华东的中生代新生代暴烈的周期和暴烈的水库作者机构:Wuhan Center of China Geological SurveyWuhan 430205China Nanjing Center of China Geological SurveyNanjing 210016China
出 版 物:《Journal of Earth Science》 (地球科学学刊(英文版))
年 卷 期:2021年第32卷第4期
页 面:742-765页
核心收录:
学科分类:081803[工学-地质工程] 08[工学] 0818[工学-地质资源与地质工程]
主 题:volcanic reservoir tectonic evolution volcanic cycle Mesozoic-Cenozoic East China
摘 要:There are widespread Mesozoic–Cenozoic terrestrial volcanic activities in East China,and they produced favorable geologic factors for the volcanic *** 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 I forms a post-orogenic intraplate bimodal volcanic *** cyclesⅡandⅢinclude arc volcanic associations formed in compressional and extensional subduction environments,*** CycleⅣcontains a post-orogenic arc bimodal *** CycleⅤis a basaltic association of tholeiite series under initial rift setting,and the CycleⅥis basaltic association of alkaline series under typical rift *** volcanic strata between each cycle are bounded by regional *** 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 *** to the geological characteristics of volcanic reservoirs in different volcanic cycles,it is put forward that the CycleⅤis the major formation period of volcanic reservoirs in East China and should be the focus of exploration,and that the volcanic reservoirs of the CycleⅣare also worthy of attention.