| 潘鑫,乔建峰,杨占凤,李净.青海交通社铌钽矿床地质特征及控矿规律[J].矿产勘查,2019,(8):1792-1800 |
| 青海交通社铌钽矿床地质特征及控矿规律 |
| Geological characteristics and ore-controlling regularity of Jiaotongshe niobium-tantalum deposit, Qinghai |
| 投稿时间：2018-12-13 |
| DOI： |
| 中文关键词: 交通社铌钽矿床 地质特征 控矿规律 碱长花岗岩 找矿标志 |
| 英文关键词: Jiaotongshe niobium and tantalum deposit, geological characteristics, ore-controlling regularity, alkali-feldspar granite |
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| 摘要点击次数: 2043 |
| 全文下载次数: 159 |
| 中文摘要: |
| 交通社铌钽矿床是阿尔金造山带新发现的铌钽矿床。文章以该矿床为研究对象,通过开展矿床地质特征调查,研究总结矿床地质特征及控矿规律。交通社铌钽矿区划分的4条矿化带,其中Ⅰ、Ⅱ、Ⅳ矿带均为金矿；Ⅲ矿带为铌钽矿,圈出铌钽矿体6条,长200～2640m,厚度为4.87～12.35 m,品位(Nb2O5)0.016%～0.034%,矿体受碱长花岗岩控制。矿化蚀变主要有:矽卡岩化、硅化、碳酸盐化和云英岩化,铌钽矿与矽卡岩化、云英岩化关系密切,铌钽矿矿石类型主要有铌铁矿石、钽铁矿石。铌钽矿受碱长花岗岩控制,位于碱长花岗岩与矽卡岩化带附近,铌钽矿体明显增高,矿体向深部具有品位变富厚度变大的趋势,铌钽矿中的铌、钽元素来源于碱长花岗岩,碱长花岗岩为成矿提供物质、能量、流体等多种条件,使矽卡岩化带附近大量的Nb、Ta等稀有、稀土元素在二云母片岩中富集,形成了铌钽富矿体。文章针对矿区的实际情况,提出并分析了找矿标志及找矿潜力,以期取得找矿突破。 |
| 英文摘要: |
| The Jiaotongshe niobium and tantalum deposit is a newly discovered niobium and tantalum deposit located in aljin orogenic belt. Taking this deposit as the research object, this paper studies and summarizes the geological characteristics and ore control rules of the deposit through the investigation of geological characteristics of the deposit, so as to guide the next step of ore prospecting. Traffic club niobium tantalum mining area divided four mineralization belt, which Ⅰ, Ⅱ, Ⅳ are gold ore belt; Ⅲ ore belts for niobium tantalum ore, circle the niobium tantalum ore body of article 6,0-2640 - m long, 4.87 12.35 m, the thickness of grade 0.016 0.034 x 10-2 (Nb2O5); The ore body is controlled by alkali feldspar granite; Mineralization alteration mainly includes skarn mineralization, silicification, carbonation and yunying mineralization. Niobium-tantalum ore is closely related to skarn mineralization and yunying mineralization. The main types of niobium-tantalum ore are niobium iron ore and tantalum iron ore. Niobium tantalum ore controlled by alkali granite long, near the long and alkali granite with silicon card lithification, niobium, tantalum ore body significantly increased, the thickness of the grade of ore body in deep has rich bigger trend, niobium, tantalum ore elements of niobium, tantalum from alkali granite, long long alkali granite for ore-forming material, energy, fluid and other conditions, the silicon card lithification near with plenty of Nb and Ta, rare, rare earth element concentration in the mica schist, formed the niobium tantalum ore shoot. Aiming at the actual situation of mining area, this paper finally puts forward the ore prospecting sign and the analysis of ore prospecting potential, in order to make a breakthrough in ore prospecting. |
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