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商丹地区幔源侵入岩是北秦岭活动陆缘型侵入岩带的组成部分，Ｓｍ－Ｎｄ等时线年龄（９７３．９±８５．９）Ｍａ。岩石化学研究证明，它们分属拉斑玄武岩系列、钙碱性系列和钾玄岩系列。三个系列的岩石均不同程度地富集大离子亲石元素、轻稀土元素和不相容性高场强元素，不同程度地贫化相容元素、过渡族元素、相容性高场强元素和ＴＮＴ组元素，显示了系统的板块会聚边缘型地球化学特征。北秦岭侵入岩带与同时代的蛇绿岩带有力地证明，北秦岭晋宁运动的构造体制是板块体制。而且，该体制下形成的基本构造格局至今仍清晰可辨。所以，晋宁运动是秦岭褶皱带漫长演化历史中的一个独立阶段。
The mantle-derived intrusive rocks in Shangdan area are part of the active continental margin intrusive belt in North Qinling. The Sm-Nd isochron age is 973.9 ± 85.9 Ma. Rock chemistry studies have shown that they belong to tholeiite series, calc-alkaline series and potash rock series. All three series of rocks are enriched with large ion lithophile elements, light rare earth elements and incompatible high field strength elements, different dilution compatible elements, transitional elements, compatible high field strength elements And TNT group elements, showing the convergent marginal geochemical characteristics of the system. The North Qinling intrusive rock belt and the contemporary ophiolite strongly prove that the tectonic system of the Jinling movement in the North Qinling Mountains is a plate system. Moreover, the basic structure formed under this system is still clearly identifiable. Therefore, the Jinning movement is an independent stage in the long evolutionary history of the Qinling fold belt.