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The Devonian is the source bed of gold, and phyllite, slate, schist and siltstone are important source rocks.

金在地层中的分布受岩性和沉积环境的控制,泥盆系是本区金成矿的矿源层,其中千枚岩、板岩、片岩、粉砂岩是金矿的重要源岩。

The Au background values are generally high in the amphibolitic rocks of the Archean metamorphic series, which is the main source bed of the region. Amphibolite facies is the major Au-bearing lithofacies.

太古宙变质岩系中的&角闪质&岩石的金元素背景值普遍较高,为本区的主要矿源层,角闪岩相是含金的主要岩相。

This study wants to perform researches on the Kangjinla chromitite and its host rock-mantle peridotite, to determine the existence of special mantle minerals, to discuss the origin of the chromtite and mantle peridotite together with the genetic relation between them.

本论文拟开展罗布莎地幔橄榄岩体中的康金拉铬铁矿床及其围岩地幔橄榄岩的研究,查明该铬铁矿矿体,尤其矿体围岩的地幔橄榄岩中是否也存在金刚石等特殊地幔矿物;通过详细的矿物学和岩石学的研究,探讨铬铁矿和地幔岩的成因,以及两者之间的成因联系。

The characteristics of elements shows that magma of fine dioritequartz diorites derived from the enriched mantle or lower crust undergone ocean crust subducting and dehydrating, and was formed and emplaced in the process of crust growth. The magma of dioritic porphyritedacitic porphyries emplaced relatively late, it might derive from upper crust or undergo intensive contamination of crustal materials, and was formed in the proces of crust thining. These characteristics suggest that the geodynamics background of the Jinchanggouliang gold deposit formation is the transition process from compression to extension.

元素地球化学特征显示:细晶闪长岩-石英闪长岩的岩浆源于富集地幔或洋壳俯冲脱水交代的下地壳,地壳增厚过程产生并就位;闪长玢岩-英安斑岩类的岩浆就位相对晚,来源具有上地壳性质或被地壳物质强烈混染,地壳减薄过程形成;这种特征暗示金厂沟梁金矿形成的地球动力学背景是在地壳挤压增厚转化为伸展减薄过程。

Through the work of the engineering and hydrology geology investigating, geologic structural planes investigating, acoustic test and deformation monitoring, and study on distribution rules of geologic structural planes, damage modes of slope, scope of loose zone, deformation rules with FLAC3D numerical simulation, the engineering proterties of loose zone is knowledged.

通过对金堆城深凹边坡松动岩体进行工程地质和水文地质的调查、节理裂隙调查、声波测试、变形监测等现场工作,研究了边坡结构面分布规律,边坡潜在的失稳模式,松动范围,变形规律,结合FLAC~(30)数值模拟,基本认识了金堆城深凹矩形边坡松动岩体工程特性。

Geological conditions of gold mineralization and ore-prospecting prognosis in Yuejiazhuang-Hutouya tectonic complex rock zone;2. Structure—magma control of gold mineralization in northwest sichuan;3. The result is that not only both of them were formed in the same tectonic setting,but also lamprophyre had an important mineral matter contribution to gold mineralization and are the marks for predicting gold deposits.

在详细的矿床地质、岩石地球化学和同位素年代学综合研究基础上,结合区域构造演化的特点,着重对金矿与煌斑岩的成因关系进行了剖析,认为戈枕含金剪切带煌斑岩与金矿不仅具有生成构造环境上的联系,而且对金成矿具有重要的物源贡献,是金矿找矿标志。

Yanbian region lies in the eastern segment of north margin of North China slab, situating on the intersect point of North China, Sibiric and the pacific slab. Space and boundary of these slabs controls the Mesozoic volcanic-subvolcanic rock distribution, which restricts the epithermal-porphyry gold metallogenic series. Though many research of deposits have been done individually, the synthesize works are few.

中文题名延边地区浅成低温热液-斑岩型金成矿系列副题名外文题名 The epithermal-porphyry gold deposit series in Yanbian region 论文作者梁俊红导师金成洙王建国教授学科专业矿产普查与勘探研究领域\研究方向学位级别博士学位授予单位东北大学学位授予日期2002 论文页码总数112页关键词成矿系列金矿床延边地区馆藏号BSLW /2003 /P618.51 /1 延边地区处于华北板块北缘东段,正好位于华北板块、西伯利亚板块和濒太平洋构造三大构造区域之间的三联点处,三者所处的空间位置和边界条件,对延边地区的火山—次火山岩及与之有成生联系的金成矿系列的形成和演化起着明显的控制作用。

And later it was overprinted and reformed by the brittle structure and formed a complex ductile-brittle ...

在该带内已发现六个金矿体,赋矿围岩为蚀变的绿片岩、糜棱岩化碎裂岩和花岗质碎裂岩

Sulfides inclusions of mantle-derived xenoliths from different districts have different gold content.

4地幔岩包体金含量高的地区,地幔岩包体中硫化物包裹体金含量也高。

Based on ore-bearing host rocks and mineralization patterns of copper-gold deposits in the western Tianshan Mountains, copper deposits can be classified into three types, i.

根据铜金矿床的含矿主岩和成矿作用方式,西天山的铜矿床主要可划分为 3种类型:斑岩型、夕卡岩型和火山热液型;金矿床可划分为 2种类型:浅成低温热液型和斑岩型。

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They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性,但我大喊,并在他们的方向扔石头让他们过的线索,远离我,以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。

Store this product in a sealed, lightproof, dry and cool place.

密封,遮光,置阴凉干燥处。