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年代学与钕模式年龄资料表明，红河成矿带的哀牢山群和瑶山群深变质岩系属同一地层系列，主体部分形成时代为１．３５—１．７Ｇａ，但也存在晚元古代斜长角闪岩。该区不存在太古宇基底。介于哀牢山群和瑶山群之间的浅变质岩系为前寒武纪火山岩与大理岩，并夹杂印支期洋中脊玄武岩（ＭＯＲＢ）型火山岩，表明原区调队填图时将其划分为三叠纪地层是不正确的。该区晋宁期（８００—９００Ｍａ）、印支期（２６５Ｍａ）、燕山期（７５—１１５Ｍａ）与喜山期（２８—３５Ｍａ）构造与动力变质事件十分强烈。年代学与地质观察证据表明，该区岩石为构造岩片组成，无正常地层系列，应称哀牢山岩群。铜成矿作用主要发生在晋宁期，在印支期、燕山期和喜山期存在铜矿的进一步迁移活化富集作用。
Geochronology and neodymium model age data show that the Ailan Mountains Group and the Yao Shan Group deep metamorphic rocks of the Honghe metallogenic belt belong to the same stratigraphic series with the main part formed at an age of 1.35-1.7Ga, but there are also Late Palaeozoic Amphibolite. There is no Archean basement in this area. The shallow metamorphic rocks between the Ailao Mountain Group and the Yao Mountain Group are Precambrian volcanic rocks and marble and interbedded with MORB type volcanic rocks, Dividing it into Triassic strata is not correct. The Jinning (800-900Ma), Indosinian (265Ma), Yanshanian (75-115Ma) and Himalayan (28-35Ma) tectonic and dynamic metamorphic events are very strong in this area. Geochronology and geological observation Evidence shows that the rock in this area is composed of tectonic slices without any normal stratigraphic series and should be called Ailaoshan Mountain Group. Copper mineralization mainly occurred in Jinning period, and there existed copper migration and enrichment in Indosinian, Yanshanian and Himalayan periods.