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通过研究盛源盆地火山岩测年数据和侏罗系—白垩系界线年龄的最新资料,认为盛源盆地火山岩地层应归属早白垩世。 盛源盆地中的火山岩系,根据火山喷发旋回,地层层序与接触关系、火山喷发沉积环境、岩性岩相及其组合特征,划分为打鼓顶组、鹅湖岭组和石溪组,并已取得共识。打鼓顶组、鹅湖岭组曾归于上侏罗统,石溪组则有归于上侏罗统与归于下白垩统之争。但是,随着同位素测年数据的积累和侏
Based on the latest data from volcanic dating of the Shengyuan Basin and Jurassic-Cretaceous boundary ages, it is concluded that the volcanic strata in the Shengyuan Basin should belong to the Early Cretaceous. The volcanic rocks in the Shengyuan Basin are divided into the Taigu Formation, Ehulling Formation and Shixi Formation according to volcanic eruption cycles, stratigraphic sequence and contact relationship, volcanic eruption sedimentary environment, lithology and lithofacies and their combination characteristics Has achieved consensus. The drum top group, goosehuling group had attributed to the Upper Jurassic, Shixi group attributed to the Upper Jurassic and attributed to the Lower Cretaceous dispute. However, with the accumulation of isotope dating data and pygmy