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tin field
相关语句
  锡矿田
     MINEROGENIC MODELS OF DACHANG TIN FIELD, GLANGXI
     广西大厂锡矿田成矿模式
短句来源
     DEVONIAN MARINE ALTERED VOLCANIC ROCKS IN THE DACHANG TIN FIELD,GUANGXI PROVINCE
     广西大厂锡矿田泥盆系蚀变海相火山岩
短句来源
     THE FEATURES OF GEOCHEMICAL ANOMALY AND PROSPECTING PREDICTION OF XIKENGJING TIN FIELD IN HUICHANG COUNTY,JIHANGXI
     会昌锡坑迳锡矿田地球化学异常特征及找矿预测
短句来源
     While studying the geochemical anomaly of Xikengjing tin field,Hui-chang,Jiangxi,the comprehensive evaluation of major soil anomaly withinthe ore field was made by applying the analysic method of characteristics.
     在研究江西省会昌锡坑迳锡矿田地球化学异常时运用特征分析法,对矿田内主要土壤异常进行了综合评价,总结出锡多金属矿的找矿标志。
短句来源
  “tin field”译为未确定词的双语例句
     STRUCTURE GEOCHEMICAL EXPLORATION AND TARGET SELECTION OUTSIDE EASTERN DISTRICT OF GEJIU TIN FIELD
     个旧锡矿东区外围构造地球化学勘查与靶区优选
短句来源
     EXISTING FORMS OF TIN IN DIFFERENT ROCKS AND METALLOGENETIC MODEL OF GEJIU TIN FIELD
     个旧锡矿区不同岩石中锡的富集特征及成矿模式
短句来源
     ORIGIN,EVOLUTION AND PROSPECTING SIGNIFICANCE OF GRANITES IN THE GEJIU TIN FIELD,YUNNAN PROVINCE
     个旧花岗岩的成因、演化及其找矿意义
短句来源
     The technique of hydrocarbon survey has great important significance for ore exploration of deep part and surrounding region in Dachang Tin field.
     有机烃气测量技术对该区的深部及外围找矿具重要指示意义
短句来源
  相似匹配句对
     TIN
     锡
短句来源
     The Application of TIN Model in Temperature-Field
     TIN模型在温度场研究中的应用
短句来源
     MINEROGENIC MODELS OF DACHANG TIN FIELD, GLANGXI
     广西大厂锡矿田成矿模式
短句来源
     ON P—PLANE FIELD
     p—平面场
短句来源
     Field Epidemiology
     现场流行病学的特点与应用
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  tin field
The Dafulou and Huile vein and stratabound cassiterite-sulfide deposits and sheeted ore veins at the Kangma cassiterite-sulfide deposit are located in the eastern part of the Dachang tin field.
      
Tin-polymetallic sulfide deposits in the eastern part of the Dachang tin field (South China) and the role of black shales in the
      
The Rooiberg tin field, also known as the Rooiberg Fragment, is located within the western lobe of the Bushveld Complex.
      
Mineral association and mineralogical criteria for the formation conditions of A B-F-Sn-Bi skarn in damoshan, Gejiu tin field, S
      


It can be seen from this study that tin in Gejiu granites is mainly concentrated in rock-formingminerals, especially in biotite, in which tin occurs chiefly as isomorphic replacement of Fe~(3+), Ti~(4+) bythe substitution: Sn~(4+)→Fe~(3+)+Li~+ and Sn~(4+)→Ti~(4+). Large quantity of tin may be brought into ore-forming solution when biotite decomposes (e. g. muscovitization of biotite). As for the Mashong gran-ite, tin may partly exist in accessory minerals such as sphene by the substitution: Sn~(4+)→Ti~(4+)....

It can be seen from this study that tin in Gejiu granites is mainly concentrated in rock-formingminerals, especially in biotite, in which tin occurs chiefly as isomorphic replacement of Fe~(3+), Ti~(4+) bythe substitution: Sn~(4+)→Fe~(3+)+Li~+ and Sn~(4+)→Ti~(4+). Large quantity of tin may be brought into ore-forming solution when biotite decomposes (e. g. muscovitization of biotite). As for the Mashong gran-ite, tin may partly exist in accessory minerals such as sphene by the substitution: Sn~(4+)→Ti~(4+). Tin inthis form cannot be easily remobilized for sphene is comparatively stable. Some early skarn mineralssuch as andradite have high tin contents (mostly higher than 450ppm). Mossbauer spectroscopy studyshows that tin in andradite occurs as isomorphic substitution: Sn~(4+)+Fe~(2+)→2Fe~(3+). By contrast, laterskarn minerals, which are the products of replacement of earlier ones, have low tin contents (from 14to 75ppm, much lower than the early skarn minerals). This indicates that the tin in early skarn min-erals can be remobilized into the ore-forming solution when they are replaced by the late hydroxylskarn minerals. Based on these materials, a metallogenetic model of Gejiu tin field can be set up asfollows: tin-bearing ore-forming solution derived from granite magama leaches quantity of tin frombiotite and other rock-forming minerals by replacement of hydrothermal alteration. This tin-enrichedsolution can collect more tin when it replaces the early tin-bearing skarn minerals in contact zone, thusconcentrating tin in the solution. During the mineralization period, cassiterites can be deposited fromthe solution in the outer contact zone and certain favorable localities of the stratigraphic sequences.

花岗岩及其造岩矿物以及副矿物中锡含量及其赋存形式的研究表明,个旧花岗岩中的锡主要赋存于黑云母等造岩矿物中。对个旧马松岩体的分析还表明,除造岩矿物外,尚有一部分锡赋存于榍石等副矿物中。黑云母和矽卡岩中锡主要呈类质同象置换形式存在,因而很容易受后期交代作用的影响而释放出来,参与成矿。基于此,可以得出本区锡矿的成矿模式:来自花岗岩浆的演化热液,通过交代蚀变作用摄取了花岗岩中主要赋存于造岩矿物中的锡,在运移过程中又使早期矽卡岩矿物如钙铁榴石等发生分解,汲取部分锡,最终在外接触带以及地层中有利的地质构造环境下,沉淀出有价值的工业矿体。

While studying the geochemical anomaly of Xikengjing tin field,Hui-chang,Jiangxi,the comprehensive evaluation of major soil anomaly withinthe ore field was made by applying the analysic method of characteristics.At the same time,the prospecting criteria of tin polymetallic deposit wassummed up, the prospecting direction in this area was showed and theprospecting target region was definited.

在研究江西省会昌锡坑迳锡矿田地球化学异常时运用特征分析法,对矿田内主要土壤异常进行了综合评价,总结出锡多金属矿的找矿标志。指明了该区的找矿方向,明确了找矿靶区。

Significant result has been obtained in using soil geochemical anomalies to locate tin deposits in the Yanbei tin field. The discovery and expansion of the Yanbei tin deposit and the successful prediction of the concealed Shangwan tin deposit in particular have accumulated useful experiences for the application of soil geochemical anomalies to ore prospecting.Based on a description of the distribution of soil geochemical anomalies in ore field,this paper discusses the geochemical anomalous...

Significant result has been obtained in using soil geochemical anomalies to locate tin deposits in the Yanbei tin field. The discovery and expansion of the Yanbei tin deposit and the successful prediction of the concealed Shangwan tin deposit in particular have accumulated useful experiences for the application of soil geochemical anomalies to ore prospecting.Based on a description of the distribution of soil geochemical anomalies in ore field,this paper discusses the geochemical anomalous characteristics related mainly to ore deposits and the geochemical indicators for the prediction of concealed tin deposits.

在岩背锡矿田,运用土壤地球化学异常寻找锡矿床,取得了显著效果,尤其是岩背锡矿床的发现和扩大,以及上湾隐伏锡矿床预测,为应用土壤地球化学异常找矿积累了经验。本文在阐述矿田土壤地球化学异常分布的基础上,着重对与矿床有关的土壤地球化学异常特征,以及隐伏锡矿床预测的异常指标进行了探讨。

 
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