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微细浸染型

微细浸染型的相关文献在1989年到2020年内共计101篇,主要集中在矿业工程、地质学、天文学 等领域,其中期刊论文95篇、会议论文1篇、专利文献923228篇;相关期刊49种,包括地球学报、地质找矿论丛、贵州地质等; 相关会议1种,包括第八届全国同位素地质年代、同位素地球化学学术讨论会等;微细浸染型的相关文献由213位作者贡献,包括齐金忠、李志宏、袁士松等。

微细浸染型—发文量

期刊论文>

论文:95 占比:0.01%

会议论文>

论文:1 占比:0.00%

专利文献>

论文:923228 占比:99.99%

总计:923324篇

微细浸染型—发文趋势图

微细浸染型

-研究学者

  • 齐金忠
  • 李志宏
  • 袁士松
  • 刘悟辉
  • 吕新彪
  • 徐文忻
  • 戴塔根
  • 李毅
  • 李莉
  • 李蘅
  • 期刊论文
  • 会议论文
  • 专利文献

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    • 谢虹忆; 黄小芬; 程伟
    • 摘要: 对黔西南某微细浸染型金矿开展了浮选试验研究,初步探索了浮选法提金的较优工艺条件.在磨矿细度-0.075 mm粒级占73.17%,丁基黄药与丁铵黑药配比为4:1、总用量为100 g/t,活化剂硫酸铜用量200 g/t,起泡剂2#油用量80 g/t条件下,采用一粗一精一扫闭路浮选流程,可得到金品位2.11 g/t、回收率39.28%的金精矿.%Flotation tests were conducted to recover gold from a fine disseminated gold deposit in southwestern Guizhou Province, and processing parameters were roughly optimized. It is shown that a closed-circuit flotation flowsheet consisting of one roughing,one cleaning and one scavenging with grinding fineness of -0.075 mm 73.17%, dosage for activator copper sulfate,frother 2#oil and collector,a mixture of butyl xanthate and butylamine dithiophosphate(4:1), respectively,at 200 g/t,80 g/t and 100 g/t,produced a final gold concentrate grading 2.11 g/t Au at 39.28% recovery.
    • 李克庆
    • 摘要: 本文阐述了黔西南地区地质特征,总结了成矿建模依据以及金矿成因模式的建立方法,对地区找矿前景进行了分析,以期为金矿开发及利用提供参考.
    • 邢晴晴; 明平田; 熊召华; 陈自强
    • 摘要: One low-grade fine-disseminated and easily argillous refractory gold ore from Qinghai is wrapped in ar-senopyrite and pyrite taking the form of microscopic and ultra microscopic scattering,and contains a number of easily argillous minerals which occupies 37. 07 %. According to the ore property,the paper adopts a process of ore and mud separation and intensified flotation, which generates a good test index; closed circuit obtains gold concentrates with gold grade of 37. 56 g/t and gold recovery of 85. 57 %. At the same time,the process,taking advantage of recycled water utilization,can effectively save water,reduce reagent consumption and lower production cost.%青海某低品位微细浸染型易泥化难处理金矿石金大多呈显微和超显微分散状态包裹于毒砂和黄铁矿中,且易泥化矿物含量高,为37.07%。针对其矿石性质,采用矿泥分散+强化浮选工艺流程,获得了较好的试验指标:闭路浮选金精矿金品位37.56 g/t,金回收率85.57%。同时,通过回水循环利用,可有效节约水资源,减少药剂用量,降低生产成本。
    • 杨鹏; 孙德
    • 摘要: 马鞍桥金矿床产于上泥盆统桐峪寺组上部浅变质细碎屑岩系,层位稳定。矿床的地质地球化学特征表明,成矿物质主要来自前泥盆纪基底的地层和岩石,成矿溶液主要为盆地同生水与变质水及大气降水的混合流体。成矿经历了同生沉积、韧性剪切变质变形、矿质活化迁移聚集和构造热液活动叠加富集的多期成矿过程。综合分析确定,该矿床属受韧-脆性剪切带控制、地下热水成因的微细浸染型金矿。
    • 陈洲; 左宇军; 王宪; 宋希贤; 韩毅
    • 摘要: Southwest Guizhou belongs to mountainous area ,its topography and geological conditions are complicated .Accurate detection of micro-disseminated type gold ore body shape and occurrence state is a problem for the efficient exploitation of the gold mine .Using dual-frequency IP method to conduct frequency domain IP ladder sweep and frequency domain IP sounding in Anlong county′s pond gold mine of Southwest Guizhou ,the Southwest Guizhou micro disseminated type gold ore body form of exploratory geophysical experiment was carried out .The results show that induced polarization of work outlining basic IP anomaly region in the ladder can basically reflect the scope of ore body ;The IP sounding work can basically reflect the tendency of the ore bodies ,the deep and occurrence characteristics of buried depth;Dual-frequency IP method can adapt to Guizhou mountainous terrain and complex geological conditions of the micro disseminated deposits ,it also have certain value in detection for the morphology of this type gold ore exploration ,ore body mining boundary is not clear due to the problems such as low efficiency ,severe ore dilution aspects .%贵州黔西南属于山区,地形地质条件复杂。准确探测黔西南微细浸染型金矿的矿体形态和赋存状态,是高效开采该类金矿的一个难题。利用双频激电法在贵州黔西南安龙县戈塘金矿进行频率域激电中梯扫面和频率域激电测深工作,对黔西南微细浸染型金矿的矿体形态进行探索性物探试验。结果表明:激电中梯工作所圈定的激电异常区域基本能够反映矿体的范围;激电测深工作基本能够反映矿体的倾向、延深及埋深等产状特征;双频激电法可以适应贵州的山区地形以及微细浸染型金矿的复杂地质条件,在该类型金矿的形态探测、解决因矿体边界不清而导致的开采效率低下、矿石贫化严重等问题方面有一定价值。
    • 侯凯; 谢贤; 童雄; 崔毅琦; 吕昊子; 孟奇; 陆娅琳
    • 摘要: 随着地质工作者对金矿矿床的不断研究与探索,选矿工作者对不同工业类型金矿床的选冶工艺和技术的研究,人们逐渐认识了不同金矿床的成矿规律及其选别方法.本文依据我国金矿床的工业类型,分别介绍了不同工业矿床的矿石对选矿的影响,叙述了相应的选矿方法,以期促进金矿选矿技术的进一步发展,对提高难选难浸金矿的选别有所裨益.
    • 肖克波; 黎娇; 陈海东; 曾超
    • 摘要: 微细浸染型金矿的产出与断裂构造、围岩岩性、围岩蚀变关系密切,矿区地处华南板块与扬子陆块之间的萍乐坳陷带西段,褶皱、断裂构造发育,矿化蚀变普遍,化探异常众多,并与成矿、赋矿、控矿地层构造相吻合,显示出微细浸染型金矿成矿的有利条件.
    • 张建强
    • 摘要: 云南者桑金矿区位于我国“滇黔桂”金三角卡林型金矿分布区,属微细浸染型金矿。通过对矿石特征和金赋存状态研究,金主要以显微、超显微自然金形式赋存于黄铁矿、毒砂等金属硫化物或其氧化物中,其次是分布在硅酸盐、碳酸盐等脉石矿物中。硫化矿石中硫化物含金量应占金总量的50%以上,部分金赋存在绢云母、脉石英及碳酸盐等脉石矿物中,含量占20%±,硅酸盐矿物中包裹金含量占20%±,极少部分金以游离金形式存在,含量占总金的10%以内;若为氧化矿则金主要为游离态金,应占总金50%以上,赋存于炭质和粘土矿物中。%Zhesang micro disseminated type gold deposit of Yunnan Province is located in Yun-nan-Guizhou-Guangxi “golden triangle”area which hosts a series of Carlin-type gold deposits. Research on the ore characteristics and gold occurrence states shows that gold exists in the form of microscopic or submicroscopic natural gold mainly in metal sulfides or metallic oxides, such as pyrite and arsenopyrite, and secondly in gangue minerals, such as silicate and carbonate. Half of the total gold is included in sulfide ore, with around 20% in some gangue minerals such as sericite, vein quartz and carbonate, around 20% inclusive gold in silicates, and the rest, less than 10%, existing in the form of free gold. In case that the ore is of metallic oxide type, gold exists in the form of free gold in carbon or clay minerals, making up over half of the total gold.
    • 曹晓峰; Mohamed Lamine Salifou Sanogo; 吕新彪; 何谋春; 陈超; 朱江; 唐然坤; 刘智; 张彬
    • 摘要: The Zaozigou gold deposit is located in the Tongren-Xiahe-Minxian gold metallogneic belt in west Qinling orogen. The ore bodies are hosted in fine-grained clastic rocks intercalated with limestone of the Middle-Triassic Gulangti Formation and varied dikes. The gold ore bodies are strictly controlled by the NE, NW and SN trending tensional and shearing faults with high dipping angle. The ore-forming hydrothermal period is divided into four stages: pyrite-quartz, pyrite-arsenopyrite quartz, stibnite-quartz-calcite and quartz-calcite. Quartz, calcite and sericite are the main alteration minerals. Environmental scanning electron microscope and electron probe analyses show that the gold is micro-visible or invisible. Micro-visible gold is seen in the intercrystalline space or in the fissures of quartz and silicates. Invisible gold is captured in pyrite, arsenopyrite, stibnite and other sulfide mainly as nanoparticles. Gold concentration in sulphides of ore-forming stages is between 0. 003% and 0. 658% with an average of 0. 257%. All the characteristics above lead us to draw the conclusion that the Zaozigou deposit is a typical carlin-type. Hydrogen and oxygen isotope compositions show that ore-forming fluids came from meteoric water while sulfur isotope compositions show that the sulfur came from the sedimentary strata. The meteoric water went deep into the crust through the deep cutting faults and was heated and circulated to extract the metals from the wall rocks. Gold may be transported in the hydrothermal fluids in forms of AuH3SiO40、Au(HS)-2 , H2 Au(Sb, As)S20 and HAu(Sb,As)S3-. In the early stage, the breakup of the AuH3SiO40 complex resulted in the deposition of Au and Si, Fe, Na, Al etc; while in the later stages the breakup of Au(HS)2-, H2 Au (Sb, As) S20 and HAu (Sb, As) S3-complexes led to the simultaneous deposition of sulfides and gold nanoparticles in them.%枣子沟金矿位于同仁—夏河—岷县金成矿带,矿区赋矿地层为三叠纪中统古浪堤组下段细碎屑岩及灰岩,并发育大量闪长质脉岩.矿体既产于地层中,也出现在脉岩或其接触带中,但其产状均严格受NE、NW及近SN向3组断裂构造控制,控矿构造为高角度的张剪性及旋扭性断裂.热液成矿期可划分为黄铁矿-石英阶段,黄铁矿-毒砂-(闪锌矿-方铅矿-黄铜矿-辉银矿-绢云母-绿泥石-)石英阶段,辉锑矿-石英-方解石阶段及石英-方解石阶段.围岩蚀变类型主要为硅化、方解石化及绢云母化.环境扫面电镜及电子探针测试数据表明,金呈显微可见金存在于矿物裂隙和粒间隙中或以纳米不可见金捕获在载金矿物中.成矿期不同硫化物金的质量分数均高出检测限,其范围为0.003%~0.658%,平均值为0.257%.枣子沟金矿床具有卡林型金矿床的典型特征.氢氧同位素数据显示成矿流体主要来自大气水,硫同位素数据则表明硫主要来自沉积地层.其成矿过程可能为深切割断裂导通地下水,在深部被加热循环萃取围岩中成矿物质,并在浅表张性断裂中充填交代围岩,致使成矿物质沉淀富集成矿.金的迁移形式可能存在AuH3SiO04、Au(HS)2、H2Au(Sb,As)S02和HAu(Sb,As)S3ˉ等多种迁移方式.成矿早阶段可能以金硅络合物的解体为主,成矿晚阶段则可能是硫氢(锑)络合物发生解体,致使金与硫化物同时沉淀,以显微纳米金的形式包含在硫化物中.
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