Content of clay micas and K supply potential of Main Soils in Fujian 福建主要土壤的粘粒云母含量和供钾潜力
Preliminary studies of clay minerals from the South China Sea micas in kimberlites 南海的粘土矿物金伯利岩中的云母
Micas of the two series of granites in South China 华南两个不同成因系列花岗岩的云母标型特征
The selective distribution of trace elements in micas is controlled mainly by the emplacement, evolution and crystallization of the magma. 微量元素在云母中的选择分布主要受岩浆物源化学背景的制约,同时也受岩浆侵位和分异演化程度高低以及结晶的物理化学条件变化等因素的影响。
The content of hydrous micas in the clay fractions of main soils in Fujian Province were estimated by X-ray diffraction method. 利用X射线衍射法估算了福建省221个土壤样品中粘粒云母含量并讨论了与粘粒云母含量变化有关的因素。
The clements Cu, Zn, W, Mo, U and Th in micas are irregularly variable, and hence cannot be used as sensitive indicators for the genesis and evolution of granites. 云母中Cu、Zn、W、Mo、U、Th等元素呈波动性变化,不能灵敏指示花岗岩的成因与演化。
Fe-AI micas and aluminium siderophyllites Fe-Al云母及铝铁叶云母
The major conclusions are summarized as below: ( 1) The upper-Triassic white micas characterized by low Si ( < 3.2 Si atoms pfu), indicates that the HP-UHP rocks in Dabie orogen improbably cropped out to the surface at that time. 上三叠统该区地层砂岩中碎屑白云母多以低硅白云母(Si<3.2)为特征,暗示此时大别造山带高压-超高压岩石很可能没有出露地表。
Various zoning textures of micas suggest that the process of magmatic crystallization of the lamprophyres is very complicated. 云母多种多样的环带结构暗示其寄主的煌斑岩具复杂的岩浆结晶演化过程。
Method and computer program for the calculation of crystal-chemical formulas of trioctahedral micas 三八面体云母晶体化学式计算的方法和程序
Due to the participation of large quantities of fluids, the fluid_rich stage is characterized by the formation of various low_pressure and hydrous minerals including a variety of white micas. 富流体阶段在大量流体参与下,形成大量的低压含水矿物,其中包括多种白色云母。
Research on Mechano chemical Coupling of Micas in Deformation 云母矿物形变的力学&化学耦合研究
Nomenclature of the Micas 云母的命名
On the origin and evolution of granites in South China in terms of trace elements in micas 从云母微量元素特征探讨华南花岗岩的成因和演化
Studies of hydrogen isotopic fractionation and oxidation of fe~ (+ 2) during dehydroxylation of micas and amphiboles 云母、闪石类矿物脱羟过程中Fe~(2+)的氧化和氢同位素分馏性质的探讨
The REE characteristics of micas are affected mainly by the chemical composition of magma source and the environments and conditions of magma evolution. 云母的REE特征主要受花岗岩物源化学背景的制约,同时也受岩浆分异演化程度和物理化学条件等的影响。
The b_0 values of white micas in metapelites from West yunnan, china, and their tectono-stratigraphic implications 滇西变泥质岩的白云母b0值及其构造-地层意义
The content of clay micas in the soils with higher weathering degree, such as lateritic red soil, red soil, yellowish red soil and yellow soil, was generally low. 风化度较高的赤红壤、红壤、黄红壤和黄壤等土类的粘粒云母含量一般较低。
Thus, the natural subdivision of Mg-Fe micas essentially reflects the potential difference in the manner and extent of muscovite substitution among various micas during crystalization under distinctive natural conditions. Mg-Fe云母自然分类的本质是各成员云母之间白云母置换方式和限度的潜在差异在不同的自然结晶条件下的反映。
The alkaline minerals which contain Na and/ or K, such as feldspars, micas, etc., exist commonly in the aggregate. 化学组成中含有Na,K的含碱矿物,如各种长石、云母等,普遍存在于混凝土集料中。
Characteristics of micas in volcanic rocks from Eastern Inner Mongolia and their forming conditions 内蒙古东部火山岩中云母特征及其形成条件
The factors influencing the content of hydrous micas were discussed. 结果表明母质是影响粘粒云母含量的主要因素。
Silicate mineral-solubilizing bacteria can dissolve silicate minerals ( such as feldspars and micas) and release the elements of potassium and silicon. 硅酸盐矿物分解细菌能够分解土壤中钾长石、云母等硅酸盐类原生态矿物,释放出硅,从而提高土壤有效硅含量。