白云母

Confirmation of high-pressure pelitic rocks in the north. The mineral assemblage of the early stage is gamet-Mg-rich chloritoid +phegite +quartz ±kyanite ±aragonite or gamet+Mg-rich chloritoid+phengite+paragonite+quartz, P-T conditions are 550±30℃ and 1.4～2.0GPa; the mineral assemblage of the late stage is muscovite +chlorite+quartz±albite, which undergone retrograde metamorphism of greenschist facies, P-T conditions are ＜550℃ and ＜0.6GPa.

确定北部高压变泥质岩石，早期矿物组合为石榴子石+富镁硬绿泥石+多硅白云母+石英±蓝晶石±文石或石榴子石+富镁硬绿泥石+多硅白云母+钠云母+石英，对应的温压条件为550±30℃和1.4～2.0GPa；晚期矿物组合为白云母+绿泥石+石英±钠长石，经受了绿片岩相的退变质作用，其温度小于550℃，压力低于0.6GPa。

The Laser microprobe analysis shows that the argon isotope is evenly distributed in the muscovite. The preliminary conclusion is (1) muscovite in high-pressure metamorphic orthogneiss does not contain excess argon and can be the object for 40Ar/39Ar dating;(2) muscovite in the Qinglongshan eclogite contains large amounts of excess ...

由此得出的初步结论是：①高压变质的正片麻岩中的白云母中不含过剩Ar，这类矿物可以作为~(40)Ar/~(39)Ar同位素测年的对象；②青龙山榴辉岩中的白云母含大量过剩氩，而作为其围岩的超高压正片麻岩中的白云母却不含过剩氩，这一事实证明了榴辉岩中白云母的过剩氩不是来自围岩，而是榴辉岩自身继承的。

In this research project, we have got a series conclusions:(1) there is no excess argon in the high-pressure white micas being in the orthogneiss;(2) The distribution of excess argon in eclogite is positive correlative with the ratio of Mg/, but negative with the ratio of Na/;(3) The in-situ analyses by using the method of laser probe 39Ar-40Ar show that the age radius from central to margin in a single grain of high-pressure white mica in eclogite;(4) There is no any evidence to prove that the excess argon in eclogite comes from fluid;(5) The excess argon in eclogite inherited from primitive rock during high-ultra high pressure metamorphism;(6) There is no excess argon in the eclogite when its surrounding rock is carbonate.

本项目用综合手段，研究了高压白云母中过剩氩的来源、赋存、分布与岩性、产状、矿物元素和矿物显微结构之间的相关关系，以确定过剩氩在高压白云母中赋存的主要控制因素。初步得出了以下结果：1、高压变质的正片麻岩中的白云母中不含过剩氩；2、高压白云母中过剩氩的赋存和Mg/有着正相关关系，而和Na/呈负相关；3、激光微区氩-氩分析表明，榴辉岩中的单颗粒多硅白云母存在年龄梯度；4、初步否定了高压白云母中过剩氩来自于流体的说法；5、初步认定，榴辉岩中多硅白云母中过剩氩主要是在高压-超高压变质过程中由内部继承的；6、在阿尔金及柴北缘等地围岩为碳酸岩的榴辉岩中的高压白云母不含过剩氩。上述研究结果将推动过剩氩成因研究走向深入。

It is found that there is a mineral association, micro-crystal muscovite and phengite, in this deposit. The mineral assemblage contains about 80% micro-crystal muscovite and about 20% phengite. Their crystallinity is very high and their polytype is 2M1. Both of them are dioctahedral because the d and b of micro-crystal muscovite and phengite are 0.1502 nm, 0.9012 nm and 0.1505 nm, 0.9030 nm, respectively. For their d and b are larger than those of common muscovite, the reason why Fe(superscript 2+)+Fe(superscript 3+) and Mg(superscript 2+) are high in the ore is that Al(superscript 3+) in the octahedron is replaced by Fe(superscript 2+)+Fe(superscript 3+) and Mg(superscript 2+), and this is a phengite series mineral association formed through isomorphic replacement.

该矿物组合中的微晶白云母和多硅白云母结晶度高，多型为2M1，其含量分别为80%和20%左右；二者都属二八面体型白云母类矿物，但d060和b值偏大，微晶白云母的d060=0.1502nm，b=0.9012nm，多硅白云母的d060=0.1505nm，b=0.9030nm；微晶白云母矿铝含量较低、铁镁含量较高，其原因是白云母晶体铝氧八面体中的Al离子被Fe、Mg等离子所取代，这一矿物组合是通过矿物类质同象作用所形成一种多硅白云母系列矿物。

The ore-near hydrothermal alteration rocks in Pangushan tungsten deposit s incluted;silicification,greisenization muscovization,phyllitealteration,sericitization,biotization,chloritization, carbonatization and so on.

盘古山钨矿床的近矿热液蚀变作用包括硅化、云英岩化、白云母化、绢英岩化、绢云母化、黑云母化、绿泥石化和碳酸盐化等，与钨矿化关系密切的蚀变作用是云英岩化和白云母化，其次是硅化、绢英岩化和黑云母化。

Part of hydromuscovite mas formed by the weathering of the muscovite of sericite in till and precipitated on icebed through subglacial melt-water.

水白云母部分来自冰碛中的绢云母和白云母的风化。水白云母经冰下融水沉淀于冰床上。

Main nonmetal mineral products of Dalitong are as follows: Raw vermiculite (annual export about 10,000 tons), expended vermiculite (annual output 20,000 tons), white mica, mica powder and mica pieces (annual output about 6,000 tons), meroxene and mica pieces (annual output 2,000 tons), bronze mica and mica pieces (annual output 2,000 tons), natural sand (annual output over 50,000 tons), quartz sand and flour (annual output over 20,000 tons), rock slice, taltalit, medical stone, calcined kaolin and so on.

达利通主要非金属矿产品有：蛭石原矿、膨胀蛭石（年产2万吨）、白云母、云母粉、云母碎（干磨和水磨，去掉。年产6千吨）、黑云母、云母碎（年产2000吨）、金云母、云母碎（年产2000吨）、天然彩砂（年产5万吨以上）、石英砂、石英粉（年产2万吨以上）、岩片、电气石、麦饭石、煅烧高岭土等

The author found that the big piece-size muscovites of China are the normal muscovites; the small-size muscovites in the metamorphic rock area are mainly phengite. The Indian muscovites studied both big and small piece-size of muscovite, are normal muscovites. The surface activity of Indian muscovite substrate is higher than China ones. Acid is easy to erode paralleling to the direction of the muscovite substrate face. Although acid treating does not destroy the muscovite structure, the thermal stability of muscovite has be decreased.

研究发现我国白云母主要产地的大片白云母均为普通白云母，变质岩地区的碎白云母以多硅白云母为主；本文研究的印度的大片白云母、碎白云母均为普通白云母；印度白云母基片的表面活性高于我国白云母；酸处理容易沿平行于白云母基面的方向侵蚀，虽未使白云母晶体结构产生破坏，但造成了白云母热稳定性降低。

Techniques and processes of activation for micas have been investigated. The optimum temperature of muscovite, sericite and illite is different, and at the temperatures the micas are mostly dehydroxylated, but still remain the basic layer structure. Some heat-induced phenomena can be observed in thermal-treated products, and the release potassium is principally slowly available potassium.

对云母样品活化释钾的方法进行了探讨，发现白云母、绢云母和伊利石的最佳释钾活化温度，该温度下云母部分脱羟，但仍保持了原有的基本结构，透射电镜下可见脱羟引起的辐射损伤、热致的晶格位错等结构现象；热产物中速效钾、特别是缓效钾量增加显著。

5 Ma. These isotopic data provide important evidence for solving the problem of whether there occurred Caledonian mineralization and further support the view that pegmatites and pegmatite rare metal-muscovite deposits in the Altay area were not only formed in the Hercynian.

本次工作通过野外调查和同位素年代学研究，首次在阿尔泰西部的也拉曼大型含绿柱石白云母矿床(426±13Ma)、阿尔泰中部的那森恰大型含绿柱石白云母矿床(447.7±0.4Ma)及阿尔泰东部的青河拜兴白云母伟晶岩脉(436.0±0.5Ma)中获得了可靠的加里东期成矿的同位素年代证据，从而为解决是否存在加里东期成矿的问题提供了重要依据，并进一步认识到阿尔泰地区的伟晶岩及伟晶岩型稀有金属-白云母矿床并非只形成于海西期。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。