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- One type islate syntectonic primary gold deposits, the other type is post-tectonic regenerated gold deposits. 中国绿岩带型金矿床可分为同构造晚期初生型金矿床和构造期后再生型金矿床二类。
- The fingerprint features (chemical composition) of placer gold has been a important method to seek primary gold. 砂金指纹(化学成分)特征是利用砂金寻找原生金的重要手段之一。
- The late syntectonic primary gold deposits not only are distribution in the low-middlegrade metamorphic greenstone belts, but also ar... 构造期后再生型热液金矿床分布广泛、储量极大,是具有中国地质特色的金矿床类型。
- On the basis of the genetical mechanism of rootless gold orebody,this paper put forward the searching methods of primary gold orebody. 根据无根金矿体的成因机制,提出追踪原生金矿体的方法。
- Experiments of roasting the carbonaceous primary gold ore that connot be treated with flotation and the affecting factors of iodide leaching glod are intrduced in this paper. 文章详细介绍了不适合浮选处理的含碳原生金矿焙烧试验和碘化浸出时各影响因素试验。
- Primary gold ore from Bangi, Guizhou, belongs to a clastic-type, finely disseminated, refractory particles.It is difficult to extract gold from the ore by cyanide infusing. 贵州板其原生金矿石属碎屑岩类微细浸染型难选冶矿石,在氰化浸出之前需进行预处理。
- The gold deposits in Archaean granite-greenstone belt can be devided into syntectonic primary gold deposits and post-tectonic regenerated gold deposits associated with anatexis magmatic rocks. 以太古宙花岗岩-绿岩带为容矿岩的金矿床系列又划分为绿岩带同构造期初生型金矿床和绿岩带后构造期与中生代壳源深熔花岗岩有关的再生型金矿床。
- In Hejiayan primary gold ores,the particle size of gold and gold carrier minerals is microfine.If the conventional cyanide leaching is adopted,the leaching rate of gold is about 23%. 何家岩原生金矿石中,金及金的载体矿物粒度微细,采用常规氰化浸出,金浸出率仅23%25左右。
- Southeast Guizhou area is a gold province, as shown by the well developed primary gold mineralization in the Precambrian rocks of the southeast Guizhou and southwest Hunan Caledonian fold belt. 研究发现,这些金矿均产在加里东皱褶带中,它们产于背斜的轴部,向两翼延伸,形成平行于地层的石英脉;另一种石英脉则充填于褶皱和剪切作用形成的剪切带或断裂带中。
- Microfine-grained primary gold ore 细粒原生矿
- Keywords Primary gold ore;Floatability;Flotation; 原生金矿石;可选性;浮选;
- The disease is still in its primary stage. 这疾病仍然在初发阶段。
- The little boy left primary school at eleven. 这个小男孩十一岁时小学毕业。
- Sure. We are friends since primary school. 当然,我们从小学就是朋友了。
- I started primary school when I was 5 years old. 我五岁时开始读小学。
- A primary cause of Tom's failure is his laziness. 懒惰是汤姆失败的主要原因之一。
- Primary school teachers use a lot of visual aids. 小学教师使用大量的视觉教具。
- Love and hatred are primary emotions. 爱和恨是基本的情感。
- The Democratic primary was held this month. 民主党候选人初选於本月举行。
- Primary education comes under the umbrella of local government. 小学教育受地方政府的保护。