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- Its geochemical feature indicates that ore forming elements mainly comes from stratum and rock of pre Devonian period and ore forming solution is complex fluid of syngenetic water, metamorphic water and meteoric water. 矿床的地质地球化学特征表明,成矿物质主要来自前泥盆纪基底的地层和岩石,成矿溶液主要为盆地同生水与变质水及大气降水的混合流体。
- Research work shows that mineralization of Nanhegou copper deposit is controlled by both peel fault and hydrothermal solution of metamorphic origin with polygenic ore forming characteristics. 研究表明南和沟铜矿床受剥离断层和变质热液两重成矿作用控制,具有多因成矿特征。
- The paper analyes interation process among shear, fluid and ore forming process, and discuss the ore forming mechanism. 还对剪切-流体-金矿化相互作用的过程进行了分析,对矿区的成矿机理进行了初步探讨。
- The deep origin of ore forming is a new theory for prospcting in situ leachable sandstone type uranium. 深源成矿论是可地浸砂岩型铀矿地质找矿的一种新思路,在松辽盆地南部铀矿勘查中得到了较好的应用。
- NNE Kuerbin crustal fault and its secondary fault anr the important conditions for ore forming. NNE向库尔滨壳断裂及其次级断裂为成矿的重要地质条件。
- Therefore,the thermoluminescence of Calcite could serve as aindicator of identifying ore forming stages. 方解石热发光曲线特征可作为矿区成矿阶段划分的一个重要标志。
- The variation of type of gold deposits in Wutai area shows complexities of ore forming process in Early Precambrian period. 本区早前寒武纪多类型金矿床的形成 ,表明了五台地区早前寒武纪金矿成矿作用的复杂性和矿床成因的多样性 ,也为认识我国早前寒武纪金矿成矿作用特点创造了极为有利的条件。
- The form solution to the Mixed Problem of one dimension inhomogeneous diffusion equation was given through the method of undetermined function. 摘要利用待定函数法给出了一维非齐次扩散方程混合问题的形式解。
- The mag matic water is a component of ore forming hydrothermal water.And the gold mater ial sources stem from the wall rock and the granite. 认为在热液蚀变作用过程中,稀土元素保持惰性,成矿热液与岩浆热液有关,赋矿围岩及矿区花岗岩提供了成矿物质。
- The closed form solution can be obtained from method of S-transformation: a variation of Laplace transformation. 用S变换法:拉氏交换的一种变形,可得封闭解,并有例示。
- The conclusion is reached that interforma-tional slip of country rocks is an effective mechanism for ore forming element activation and reenrichment. 并且认为含矿围岩的层间滑动是成矿元素后期活动再富集的有效机制。
- By using the elliptic function and conformal transformation theory,a close form solution to this problem is obtained. 运用椭圆函数和保角变换理论,获得了该问题严格的闭合解。
- It has more intensive realistic sense for analyzing the ore forming geological features of black talc and making application study on the black talc. 分析黑滑石的成矿地质特征,进行黑滑石的应用研究具有较强的现实意义。
- Qinling is an intracontinental polycyclic complex collision orogen, and also is one of the most important polymetallic ore forming belts. 秦岭造山带是一个多旋回复合大陆碰撞造山带;是我国重要的多金属成矿带之一.
- Closed form solution by Randolph could be used to calculate linear deformation soil,where shear modulus unchanged or grow linearly with depth. Randolph的近似解析解可计算线弹性土体,且土的剪切模量随深度不变或者线性增加条件下的桩基础沉降。
- The paper deals with geochemical characteristics of ore forming and halo forming processes of Au deposits with several metallogenic stages. 论述了金矿多期多阶段叠加成矿成晕的地质地球化学特征。
- Closed form solution of LQG problem for seismic response of adjacent buildings connected by hydraulic actuators is presented in this paper. 本文把毗邻建筑的地震反应控制作为LQG控制问题,并应用虚拟激励法和留数定理推导出问题的闭合解。
- There are favorable ore forming geological conditions for the Bengbu uplifting area,which,however,is severely covered with the Quaternary System with bedrocks sparsely outcropped. 蚌埠隆起区成矿地质条件有利,第四系覆盖严重,基岩露头零星,运用综合信息矿产预测理论可以指导本区地质找矿工作。
- From the point of view of geochemistry, the regularity of migration and enrichment of ore forming elements during migmatization is discussed in this paper. 从成矿作用地球化学的观点;探讨了元素在混合岩化过程中迁移;富集成矿的规律.
- After sunspace decomposition, the close form solution of channel matrix could be obtained, according to the orthogonality of signal subspace and noise subspace. 然后求出重构信道矩阵的噪声子空间,之后利用信号子空间与噪声子空间正交特性,构造出信道矩阵作为变量的线性方程组,因而可以得到信道矩阵的闭式解。