Both the Jinding and Baiyangping ore deposits developed in the Lanping basin, which is a Mesozoic-Cenozoic terrestrial clastic sedimentary basin. Their occurrences can easily lead many people to compare them with the Pb-Zn deposit hosted in sedimentary rocks, such as Mississippian Valley-, Sedex- and sandstone-type Pb-Zn deposits. However, the Lanping basin developed in the settings of strong tectonic activity of the continental crust, which could cause an effective material exchange between the lower crust and the upper mantle. The orebodies are clearly tectonically controlled without syngenetic features, which probably represents a new type of the sedimentary rock-hosted Pb-Zn deposit. The isotopic compositions of noble gases in ore-forming fluids indicate that 2%-32% of helium (3He/4He=0.19 Ra-1.97 Ra) is derived from the mantle, 50.1% of neon (20Ne/22Ne=10.45-10.83; 21Ne/22Ne=0.03) from the mantle, and considerable amount of xenon (129Xe/130Xe=5.84-6.86; 134Xe/130Xe=2.26-2.71) from the mantle, which show that mantle fluids played an important role in the ore formation. The ore-forming age of 67-60 Ma obtained by Re-Os and 40Ar-39Ar dating methods is later than the host rock, which is coeval with the Himalayan alkali magmatism of the mantle source and mantle-crust source. In this paper, the mineralization of the Jinding and Baiyangping ore deposits is considered to be related to the mantle fluids which move upward with the magma or along the deep faults, and mix with the meteoritic brine in the crust to result in large-scale deposition.

南秦岭泥盆化沉积柱中产有多种类型海底水沉积岩。它们的∑REE偏低（平均63.09×10-6），REE配分曲线平缓右倾，La/Yb=2～8，Ce亏损，总体上与海水相似。产于Sedex含矿层中的热水沉积岩具有正Eu异常，与现代海底液及红海热液深积物可比；而产在Sedex含矿层以下地层中的热水沉积岩Eu亏损，与EPR热液沉积物相似。REE地球化学研究和岩厂学研究结果一致，支持热水沉积岩REE来源于海水及部分下伏沉积（包括基底），含矿热水沉积岩是盆地热演化到一定阶段具有一定深度和规模的循环对流体在海底的化学沉积，而Sedex含矿层以下地层中的热水沉积岩则是浅部热水对流循环的海底显示。成岩和变质作用对岩石的REE未造成影响。

在秦岭东段泥盆系中新发现一种似碧玉纹钠长石岩，发育有与中泥盆统同样良好的韵律层。野外和室内研究表明，岩石具古巴热泉沉积因的可靠信息。这类岩石的发现，对研究秦岭泥盆系铅锌成矿海盆中古热地异常及热泉活动引起的局部热水沉积环境具重要意义，也为了解秦岭造山带泥盆纪时期的成因演化积累了新资料。

赋存层控锌矿床的东秦岭泥盆内发育一类特殊岩石——方柱黑云岩，野外和室内的研究表明，它是与火山及热泉活动有关异常地热海盆中的一种特殊沉积相。矿物学、岩石学及地球化学特征也为其原凝灰质沉积岩经过热卤水“浸泡效应”（soaking effect)形成方柱黑云岩炎的成因提供了可靠信息。据此推测秦岭泥盆纪层控矿床成矿海盆的异常地热背景和热水沉积环境。