本文選題：硅質(zhì)巖 + 熱水沉積��； 參考：《中國地質(zhì)大學(xué)(北京)》2015年碩士論文

【摘要】：新疆溫泉縣托克賽鉛鋅礦床是近年新疆在西天山找礦的又一重大發(fā)現(xiàn),托克賽鉛鋅礦床位于哈薩克斯坦-伊犁板塊北部的賽里木微地塊北緣,與哈薩克斯坦境內(nèi)的捷克利超大型鉛鋅礦可類比。本文對(duì)托克賽鉛鋅礦床的地質(zhì)特征、同位素地球化學(xué)特征進(jìn)行了研究,獲得了如下認(rèn)識(shí):①托克賽鉛鋅礦床形成于大陸邊緣環(huán)境,可能與元古宙被動(dòng)大陸邊緣拉張、裂陷作用有關(guān)。礦體賦存于古元古界溫泉群大理巖中,礦體呈層狀、似層狀產(chǎn)出,受層位控制明顯,與地層同步變形。礦石具塊狀、層狀、和浸染狀構(gòu)造。礦區(qū)侵入巖脈及其附近未見相關(guān)有用元素礦化富集。②托克賽鉛鋅礦床的地質(zhì)和地球化學(xué)特征表明:托克賽礦區(qū)硅質(zhì)巖為熱水沉積成因,大理巖為正常沉積碳酸鹽巖經(jīng)變質(zhì)作用形成。③本文綜合托克賽鉛鋅礦床的地質(zhì)和地球化學(xué)特征分析,認(rèn)為托克賽鉛鋅礦床為SEDEX型鉛鋅礦床。④托克賽鉛鋅礦與相鄰的哈薩克斯坦捷克利鉛鋅礦床在成礦環(huán)境、賦礦層位、礦化類型、礦床成因等方面具有可比性,顯示出巨大的找礦前景,托克賽鉛鋅礦床的發(fā)現(xiàn)也證實(shí)了捷克利鉛鋅成礦帶延入我國賽里木湖一帶。托克賽鉛鋅礦的發(fā)現(xiàn)進(jìn)一步證實(shí)元古宙為鉛鋅成礦的重要時(shí)期,佐證哈薩克斯坦捷克利鉛鋅成礦帶向東延入我國新疆賽里木湖一帶,對(duì)開展西天山北部地區(qū)鉛鋅礦找礦和成礦規(guī)律研究具有重要意義。
[Abstract]:The Tokesai Pb-Zn deposit in Wenquan County, Xinjiang, is another important discovery in Xinjiang in recent years for prospecting in the West Tianshan Mountains. The Tokesai Pb-Zn deposit is located in the northern margin of the Selimu microblock in the northern part of the Kazaka-Yili plate. It is analogous to the Czech super-large-scale lead-zinc mine in Kazakhstan. In this paper, the geological characteristics and isotopic geochemical characteristics of the Tokesai Pb-Zn deposit are studied. The following conclusions are obtained that the Tokesai Pb-Zn deposit was formed in the continental margin environment and may be extensional from the Proterozoic passive continental margin. Rifting is related. The orebody occurs in the marble of the Paleoproterozoic hot spring group. The orebody is stratiform and stratiform, which is obviously controlled by the horizon and deformed synchronously with the strata. The ore is massive, layered, and disseminated. The geological and geochemical characteristics of the intrusive vein and its adjacent mineralized and enriched 2.Tokesai lead-zinc deposit indicate that the siliceous rocks in the Tokesai mine are of hydrothermal sedimentary origin. Marble is a normal sedimentary carbonate rock formed by metamorphism. 3 the geological and geochemical characteristics of the Tokesai lead-zinc deposit are analyzed in this paper. It is considered that the Tokesai lead-zinc deposit is a SEDEX type lead-zinc deposit, which is comparable with the adjacent Czech Lead-zinc deposit of Kazakhstan in the metallogenic environment, ore-bearing horizon, mineralization type, ore genesis and so on. The discovery of the Tokesai Pb-Zn deposit also confirms that the Czech Lead-Zinc metallogenic belt extends into the Selimu Lake area of China. The discovery of the Tokesai lead-zinc deposit further confirmed that the Proterozoic was an important period for lead-zinc mineralization, and that the Czech Lead-zinc metallogenic belt of Kazakhstan extended eastward into the Sailimu Lake area of Xinjiang, China. It is of great significance to study the prospecting and metallogenic regularity of lead and zinc deposits in the northern part of the western Tianshan Mountains.
【學(xué)位授予單位】：中國地質(zhì)大學(xué)(北京)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：P618.4

【參考文獻(xiàn)】

相關(guān)期刊論文 前6條

1 祁思敬,李英;南秦嶺晚古生代海底噴氣-沉積成礦系統(tǒng)[J];地學(xué)前緣;1999年01期

2 胡靄琴,張國新,張前鋒,陳義兵;天山造山帶基底時(shí)代和地殼增生的Nd同位素制約[J];中國科學(xué)(D輯:地球科學(xué));1999年02期

3 韓發(fā);R.W.哈欽森;;大廠錫—多金屬礦床熱液噴氣沉積成因的證據(jù)——容礦巖石的微量元素及稀土元素地球化學(xué)[J];礦床地質(zhì);1989年03期

4 劉家軍,何明勤,李志明,劉玉平,李朝陽,張乾,楊偉光,楊愛平;云南白秧坪銀銅多金屬礦集區(qū)碳氧同位素組成及其意義[J];礦床地質(zhì);2004年01期

5 成勇;閆存興;俞彥龍;朱生善;;新疆溫泉縣托克賽鉛鋅礦地質(zhì)特征及找礦前景分析[J];礦產(chǎn)與地質(zhì);2011年06期

6 李峰;堅(jiān)潤堂;趙向東;;青海錫鐵山礦床硅質(zhì)巖的地球化學(xué)特征及形成環(huán)境[J];昆明理工大學(xué)學(xué)報(bào)(理工版);2009年06期

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本文編號(hào)：1824969