| 苏友庆.福建水吉铅锌矿床矿石硫铅同位素特征及矿床成因[J].地质找矿论丛,1992,(4):85-97 |
| 福建水吉铅锌矿床矿石硫铅同位素特征及矿床成因 |
| S-ISOTOE CHARACTERISTICS OF ORE IN SHUIJI Pb-Zn MINE AND THE GENISIS |
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| DOI：10.6053/j.issn.1001-1412.1992.4. 010 |
| 中文关键词: 铅锌矿 硫铅同位素 矿质来源 矿床成因 福建水吉 |
| 英文关键词: |
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| 摘要点击次数: 1035 |
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| 中文摘要: |
| 水吉铅锌矿不同类型矿体成矿物质来源不同、成因各异.似层状型矿体成矿物质主要由海底火山喷发从上地幔或下地壳深部带来,属火山沉积-变质(改造)型铅锌矿.断裂破碎带型铅锌主要来自地壳深部,硫具多源性,它们是在断裂深切基底的条件下,深部成矿物质转入壳层,与围岩中成矿物质共同演化,或混合的结果,银主要来自燕山期岩浆热液,属后生-岩浆热液改造型铅锌矿. |
| 英文摘要: |
| Shuiji Pb-Zn ore deposit is hosted by metamorphic rocks of Middle Proterozoic with direct wall rock of diopside-tremolite rocks metemorphoed from marine intermediate-basic rocks. Ore bodies are divided into two types, ie stratoformed bodies in diopside-tremolite rocks and Ag-Pb-Zn ore bodies in fractured zones closely related to diorite.Pb, S isotopic data reveal that Shuiji Pb-Zn ore is formed by multi-stages. Marine intermediate-basic eruption carried Pb, Zn S ore-forming materials from matle and lower crust. stratoformed Pb-Zn ore bodies were formed by metamorphisms during Jinning Movemeut; Primary ore bodies were formed in fractured zones during Chengjiang Movement and Ag-Pb-Zn ore bodies configured by modification of tecto-magmatism of Yanshan Period. Ore material of stratoform bodies are sourced from deep sites by marine eruption belonging to volcanic-sedimentary modified deposit. Ore bodies in fractured zones ane formed by Pb, Zn, S from deep crust. S is multi-source, e.g. mantle sulfur, magmatic sulfur and biotic sulfur which were transfered to crust durig dissection of basement by fracture and incooperated into materials of wall rocks. Silver is mainly sourced from Yanshanian magmatism. |
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