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对北大巴山地区岚皋－镇坪一带的区域地质构造演化及其与早古生代碱基性火山杂岩的成岩关系进行了综合分析，指出本区曾经历了裂陷－愈合一再裂陷－愈合的地质发展和演化。早古生代时期本区是一个在已固结愈合的中－晚元古代的裂陷的扬子地台北缘构造软弱带的基础上重新活化的大陆边缘陆内断陷构造带。它不仅控制了区内该时期碱基性火山杂岩的产出位置、岩浆脉动活动特征，而且还影响到岩浆物质来源的深度。在此基础上，笔者探讨了与杂岩密切相关的碱（钾）质煌斑岩的金刚石含矿性。
The regional geological tectonic evolution of the Langao-Zhenping area in the North Dabashan area and its relationship with the diagenesis of the Early Paleozoic basal volcanic complex are analyzed. It is pointed out that the area has undergone a series of processes of tectono-healing and recurrence-geology Development and evolution. In the area of Early Paleozoic, this area was a reactivated continental marginal intracontinental tectonic belt on the basis of the structurally weak zone of the northern margin of the mid-late Proterozoic rift that had been consolidated and healed. It not only controls the production location of basic volcanic complexes during this period in the region, but also affects the depth of magma source. On this basis, the author discusses the diamond mineralization of the alkali (potassium) lamprophyre closely related to the complex.