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丽江县鸣音区阿冷初剖面,历来认为是志留、泥盆系连续沉积的理想剖面,岩性差异不大,生物群面貌较易区别。经我们工作,认为该剖面中的上志留统不存在的可能性很大,原6层就是9层,它们之上都是辉绿岩侵入体,沿辉绿岩顶面追索,其上就是10层。从第7层深灰色中薄层灰岩夹页岩的底,由冲沟而上,横穿6,5层,抵达与4层厚层泥质网纹状灰岩接触的冲沟上山;冲沟中部两壁产状相反,南沟壁为165°<33°,北为206°<82°,冲沟上、下部均掩盖。6,5层错动挠曲剧烈,表明它们是断层接触。其层序如图1所示:
A cold early section of the Mingyin District, Lijiang County, has always been considered as Silurian, Devonian continuous deposition of the ideal profile, lithology little difference, the biome easier to distinguish. After our work, we think that there is a great possibility that the upper part of the profile does not exist. The original 6 layers are 9 layers, all of them are diabase intrusions and are traced along the top of the diabase. Is 10 layers. From the bottom of the deep-bedded medium-thickness limestone shale in layer 7, it rises above the gully and crosses layers 6 and 5 to reach the gulch up the mountain in contact with the 4-layer thick muddy reticulated limestone. The opposite sides of the ditch have the opposite shape with the south ditch wall being 165 ° <33 ° and the north being 206 ° <82 °. The upper and lower parts of the ditch are covered up. Variations in the sixth and fifth floors violently, indicating that they are fault-touching. The sequence shown in Figure 1: