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| 江西九岭成矿带燕山成矿阶段矿床成矿系列成矿规律和存在的问题探讨 |
| Discussion about research progress and existing problems of metallogenic series of ore deposits Yanshan metallogenic belt metallogenic stages in Jiangxi nine ridge |
| 投稿时间：2015-09-08 修订日期：2015-09-09 |
| DOI： |
| 中文关键词: 九岭成矿带 燕山期岩浆活动 同位素年龄 |
| 英文关键词:nine Ling metallogenic belt Yanshan period magmatic activity isotopic age |
| 基金项目:国家自然科学基金项目（面上项目，重点项目，重大项目） |
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| 中文摘要: |
| 九岭地区是赣西北一个十分重的内生矿产成矿带。九岭地区岩浆岩时间分布在134-151.4士2.4Ma之间,其接近于燕山早期(205-137Ma)阶段；岩浆岩以小型岩体,呈NNE成带展布为特征,具等间距棋盘格式展布特征。区内酸性岩浆岩与矿床在形成时间上十分接近,空间关系上相互依存,并显示特定的分布格局。岩浆岩中钠质含量及钠钾比对矿化类型有一定的关系,而与碱质总量无关。Na2O含量在3.30%～3.50%之间和钠钾比在0.65～0.80之间与W-Sn-Mo-Cu-Ag矿化有关；钠钾比>0. 8与W-Sn (Cu)矿化较为密切,Na2O含量越少越不利成矿。但区内的老地层、晋宁期岩浆岩,岩浆活动,大型推覆构造与成矿的关系,重力勘探的有效性等问题有待理清。 |
| 英文摘要: |
| Nine ridge area is a very important endogenous mineral metallogenic belt in Northwest Jiangxi. time of magmatite in Nine ridge area distribute between 134-151.4 2.4Ma, which is close to Yanshan in the early stage (205-137Ma); the scale of Magmatite rock is small type with characteristics along NNE distribution,. With the space distribution characteristics of the chessboard format. Acidic magmatic rocks and ore deposits in the area is very close to the forming time, they are relations of interdependence in the space, and display the distribution pattern of the specific. There is a certain relationship between the sodium content and sodium potassium ratio of magmatite in mineralization type, and has nothing to do with the alkali aggregate. The content of Na2O is 3.30% ~ 3.50% and 0.65 ~ 0.80 in sodium potassium ratio and W-Sn-Mo-Cu-Ag mineralization; sodium and potassium than the >0. 8 and W-Sn (Cu) mineralization is closely, less Na2O content more unfavorable mineralization. But in old formation, Jinning magmatite, magmatic activity, the relationship between large-scale nappe tectonics and mineralization, the effectiveness of such issues of gravity prospecting would be clear. |
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