| 试论内蒙古狼山式（型）铅锌矿床成矿地质分析 |
| |
| 引用本文： | 李荣祥,郝通顺.试论内蒙古狼山式（型）铅锌矿床成矿地质分析[J].矿产与地质,2010,24(1):44-51. |
| |
| 作者姓名： | 李荣祥 郝通顺 |
| |
| 作者单位： | 内蒙古有色地质勘查局511队,内蒙古,巴彦淖尔,015000 |
| |
| 摘 要： | 热水喷流-沉积型铅锌矿床多产于古大陆边缘或陆间裂陷槽中;巨厚沉积物堆积与强烈还原环境是该类型矿床形成的前提。泥岩-细碎屑岩型（SEDEX型）及海相火山岩型（VMS型）铅-锌矿床虽具块状硫化物矿石,硫化铁矿物含量都很高,但二者产出的地质背景有明显不同。前者是冒地槽或陆相浅海环境,大量泥砂堆积;后者则是优地槽环境,伴随钙碱系列或拉斑玄武的海底火山活动。文章通过对狼山成矿带上各典型矿床成矿特征的研究和总结后认为：狼山多金属成矿带的各赋矿次级盆地是华北古陆边缘拉张条件下具有还原性质的海相裂谷盆地,矿床具有明显的层控与岩控特征,并且同生断裂活动及其对成矿的控制作用,喷流成矿过程中的同沉积期火山活动特点都比较明显,说明狼山成矿带上典型矿床成矿作用与成矿动力来源的多样性、复杂性和独特性,对在该区找矿具有一定指导意义。
|
| 关 键 词： | 铅锌矿床 成矿特征 成矿作用 沉积喷流型 狼山-渣尔泰山 内蒙古 |
Discussion of mineralization feature of Langshan lead-zinc deposit in Neimenggu |
| |
| LI Rong-xiang,HAO Tong-shun.Discussion of mineralization feature of Langshan lead-zinc deposit in Neimenggu[J].Mineral Resources and Geology,2010,24(1):44-51. |
| |
| Authors: | LI Rong-xiang HAO Tong-shun |
| |
| Institution: | (Geological Team 511#, Neimenggu Non-ferrous Metals Geological Exploration Bureau, Bayannaoer, Neimenggu 015000) |
| |
| Abstract: | Hydrothermal sedimentation-exhalation Pb-Zn deposit is often located in the ancient continental margin or intracontinental rifting trough. Thick sedimentary accumulation and strong deoxidizing environment is the formation precondition of this kind deposit. Although there are with mass sulfide ore in mudstone and fine clastic rock type （SEDEX type）, marine volcanic rock type （VMS type） deposit, with rich content of pyrite, the two types are obviously different in geological environment. The former is in the shallow marine environment of shelf or miogeosyncline with a lot of accumulation of mud and sand. The latter is in the environment of eugeosyncline, with marine volcanic activity of calc-alkaline series or tholeiitic basalt. On the basis of the study and summary of the mineralization feature of the typical deposits in the Langshan ore zone, the paper has pointed out that secondary basin of the deposit is a marine rifting basin with deoxidizing quality under the spreading condition in the ancient continental margin of north China. The contemporaneous faulting activity is the main ore-controlling process. The volcanic activity of the same sedimentary period is also obvious in the exhalation mineralization process. The mineralization process and dynamical source of the typical deposits in the Langshan ore zone are various and complicated and special. It is significant to guide the exploration in the region. |
| |
| Keywords: | Pb-Zn deposit mineralization process sedimentation-exhalation type Langshan-Zhaertaishan Neimenggu |
| 本文献已被 维普 万方数据 等数据库收录！ |
|
