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Many kinds of gem-grade minerals such as beryl, scheelite, cassiterite and tourmaline, and sub-products such as K-feldspar, galenite, tabular quartz, tabular calcite and mica were found in beryl-scheelite vein deposit of Huya, Pingwu County, Sichuan Province .

对该区代表性矿物绿柱石、白钨矿、锡石等进行了成分研究、形貌描述及矿物共生组合特点分析,从矿物标型特征、围岩蚀变类型确定了矿床属于高温热液云英岩脉型矿床,在此基础上重点探讨了板状绿柱石成因

Seven wolframite separates from both topaz-quartz vein type and greisen block type tungsten ores were selected for Sm-Nd analysis.

云英岩型钨矿石中2件黑钨矿样品的ε(322Ma)值分别为5.93和4.24,与同时期亏损地幔钕同位素演化线值接近。

In recent years, a number of tungsten polymetallic ore deposits were discovered in Guidong—Rucheng area, resulting in a remarkable breakthrough in the expansion of ore deposit type and ore deposit size. The ore deposits are of skarn type, altered granite type, structural alteration belt type, quartz vein type, greisen type, bedded type etc.

中文摘要:近年来在桂东-汝城地区发现了钨多金属矿床10余个,在矿床类型和矿床规模上均有较大的突破,矿床类型有:矽卡岩型、蚀变花岗岩型、构造蚀变带型、石英脉型、云英岩型、层控型等多种。

Quartz - vein type and greisen - type associated with tungsten, and porphyry - type are major types of Sn deposits, In recent few years, a new type of tin deposit- clastic altered rock type has been discovered, which made new development in tin - probing.

赣南地区是闻名于世界的钨锡矿产区,区内锡矿主要有与钨矿共生的石英脉型、云英岩型,斑岩型,隐爆层间裂隙带型等类型,近年来,又发现了锡矿新类型——破碎蚀变岩型,使本区找锡又有了新的进展。

Data of major andminor elements in magnetite, cassiterite, galena and sphalerite from oredeposits within this ore belt suggest that these ore deposits are of skarn,hydrothermal, porphyry and greisen types related to Yanshanian magmaticactivity and that iron in ores came from regional Permian marine interme-diate-basic volcanic rocks whereas partial lead and zinc from Permian geo-synclinic sediments.

矿带中各矿床的磁铁矿、锡石、方铅矿、闪锌矿的主元素和微量元素数据表明,这些矿床是属与燕山期岩浆活动有关的矽卡岩型、热液型、斑岩型和云英岩型矿床;其成矿金属组分中的铁来源于区域晚古生代海相中-基性火山岩,部分铅锌来源于区域二叠纪地槽沉积物。

The Maoping tungsten-tin deposit is located in the eastern section of Nanling metallogenic belt, the Chongyi-Dayu-Shangyou tungsten polymetallic ore concentration area and at the front part of the Tianmenshan rock mass extension with a north trend. Greisen and the quartz vein are the main tungsten-tin mineralization types in the mine area.

茅坪钨锡矿床位于南岭成矿带东段,位于崇-余-犹钨多金属矿矿集区西华山-杨眉寺区段中北部的天门山-红桃岭矿田,为天门山岩体向北倾伏延伸的前锋部位;矿区钨锡矿化类型主要有云英岩型和石英脉型两种。

Tin deposit types include the structural alteration zone type,altered rock body type,greisen type,porphyry type,quartz-vein type and alluvial type.

湖南骑田岭芙蓉矿田是近几年发现的超大型规模的锡多金属矿田,目前已发现锡矿脉40多条,锡矿类型有构造蚀变带型、蚀变岩体型、云英岩型、斑岩型、夕卡岩型、石英脉型、冲积型等多种。

L the normal zonning in order of greisen type tin deposit 〓tourmalite type tin deposit 〓 cassiterite quartz type tin deposit 〓cassiterite sulfide tin deposit copper-lead-zinc 〓 sulfide deposit 〓lead-zinc sulfide deposit 〓antimony deposit, which may be related to the high-level em placement of the intrusions;2 the reversed zoning in order of lead-zinc deposit 〓copper-lead-zinc deposit 〓tin polymetallic deposit, which may be result from the descending of heat centre of the intrusions with their cold and solidification.

该成矿系列的矿床在空间上有序分带,即以岩体为中心的顺向分带为:云英岩型锡矿床〓电英岩型锡矿床〓锡石石英型锡矿床〓锡石硫化物型锡矿床〓铜铅锌金属硫化物矿床〓铅锌硫化物矿床〓锑矿床,逆向分带为:锡多金属矿床〓铜铅锌硫化物矿床〓铅锌硫化物矿床,造成这种分带现象的内在因素是高热能且富含矿热液的黑云母花岗岩的高侵定位和岩体热中心的向下移动。

Seven molybdenite samples from greisen ore body and quartz vein tungsten ore body associated with black tungsten ore were chosen for Re-Os isotopic dating and model age of (141.4±2.2) Ma~(158.2±2.2) Ma were obtained. The isochrone age of molybdenites from greisen type tungsten-tin ore body is (156.8±3.9) Ma, which indicates that its mineralogenetic epoch is at the Middle Jurassic, corresponds to the second stage of early Yanshanian period. And the model age for the samples from greisen ore body and from quartz vein ore body are (150.7±2.4) Ma~(158.2±2.2) Ma and (141.4±2.2) Ma~(151.0±2.4) Ma respectively, which indicates that the mineralization time of the quartz vein ore body is slightly earlier than that of greisen ore body.

文章选取云英岩型矿体及上部石英脉型钨矿体中与黑钨矿共生的辉钼矿7件,进行Re-Os等时线年龄测定,得到其模式年龄为(141.4±2.2) Ma~(158.2±2.2)Ma,其中云英型钨锡矿体中辉钼矿等时线年龄为(156.8±3.9)Ma,成矿时代为中侏罗世,对应于燕山早期第二阶段;从云英岩矿体中样品模式年龄为(150.7±2.4)Ma~(158.2±2.2)Ma,石英脉型矿体中样品模式年龄为(141.4±2.2)Ma~(151.0±2.4)Ma。

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。

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