本文選題：鋰輝石　切入點(diǎn)：大型超大型礦床　出處：《地球科學(xué)》2017年12期 　論文類型：期刊論文

【摘要】：鋰輝石礦床是鋰礦的重要類型,但曾經(jīng)因?yàn)殚_(kāi)采成本高于鹽湖提鋰而被停止勘查.近年來(lái)隨著新興產(chǎn)業(yè)快速發(fā)展對(duì)鋰的需求成倍增長(zhǎng),對(duì)鋰輝石的重新開(kāi)采已經(jīng)成為鋰資源的重要來(lái)源.通過(guò)對(duì)國(guó)內(nèi)外7個(gè)大型超大型鋰輝石礦床一些成礦特點(diǎn)的歸納總結(jié),認(rèn)為大規(guī)模的鋰輝石成礦作用總是伴有一定的特殊性,如:偉晶巖型的鋰輝石礦床可以產(chǎn)出在基性巖而不局限于花崗巖、片麻巖、片巖等常見(jiàn)的圍巖中;鋰輝石在偉晶巖中可以是粗晶的,也可以是細(xì)晶的;含鋰輝石的偉晶巖脈可以是分帶性良好的,也可以是分帶性很差的;礦脈的形態(tài)可以是簡(jiǎn)單的板狀體也可以是極其復(fù)雜的;成礦時(shí)代可以老到太古宙也可以晚到新生代;成礦構(gòu)造環(huán)境可以是穩(wěn)定的地臺(tái)區(qū)也可以是構(gòu)造活躍的喜馬拉雅造山帶.從容礦圍巖特殊性、成礦時(shí)代特殊性、構(gòu)造背景特殊性、礦化分帶特殊性等方面探討了大型超大型鋰輝石礦床的找礦方向,指出,在找礦的過(guò)程中不能局限于花崗巖體的周邊,也不能只以古老地臺(tái)區(qū)的西澳的格林布什或北美的坦科為唯一模板,更不能只想到新疆可可托海的復(fù)雜性而忽略還有四川甲基卡、可爾因這樣規(guī)�？墒队诖笮偷V床但形態(tài)卻十分簡(jiǎn)單的超大型礦床的存在,找礦過(guò)程中也不能只考慮傳統(tǒng)地質(zhì)方法而要結(jié)合實(shí)際情況建立適當(dāng)?shù)奈锾交降瓤辈槟Ｐ?只要具體問(wèn)題具體分析,拓展找礦思路,恰當(dāng)使用勘查技術(shù)手段,要取得新的找礦突破是完全可能的.
[Abstract]:Spodumene deposits are an important type of lithium ore, but have been stopped from exploration because of the higher cost of mining lithium than in salt lakes. The demand for lithium has increased exponentially in recent years with the rapid development of emerging industries. The remining of spodumene has become an important source of lithium resources. By summing up some metallogenic characteristics of seven large and super-large spodumene deposits at home and abroad, it is concluded that large-scale spodumene mineralization is always accompanied by certain particularity. For example, pegmatite spodumene deposits can occur in basic rocks rather than in granite, gneiss, schist and other common surrounding rocks, spodumene in pegmatite can be coarse-grained or fine-grained; The pegmatite vein containing spodumene can be well zoned or poorly zoned, the shape of the vein can be simple plate-like or extremely complex, and the metallogenic age may be old to Archean or late to Cenozoic. The ore-forming tectonic environment may be a stable platform area or an active Himalayan orogenic belt. This paper discusses the prospecting direction of large and super-large spodumene deposits from the particularity of mineralization zoning and points out that the prospecting process should not be confined to the periphery of granite body. Nor can we just take Greenbush in Western Australia or Tanco in North America as the only template in the ancient platform area. Nor can we just think about the complexity of the Coco Sea in Xinjiang and ignore the Sichuan methyl card. The existence of super-large deposits of such a scale as that of a large deposit, but of a very simple form, In the process of prospecting, we should not only consider the traditional geological methods, but also set up appropriate geophysical and geochemical exploration models according to the actual conditions. As long as the concrete problems are analyzed, the ideas of prospecting should be expanded, and the technical means of exploration should be properly used. It is entirely possible to make a new breakthrough in prospecting.
【作者單位】： 中國(guó)地質(zhì)科學(xué)院礦產(chǎn)資源研究所國(guó)土資源部成礦作用與資源評(píng)價(jià)重點(diǎn)實(shí)驗(yàn)室;中國(guó)地質(zhì)大學(xué)地球科學(xué)與資源學(xué)院;中國(guó)地質(zhì)調(diào)查局地學(xué)文獻(xiàn)中心中國(guó)地質(zhì)圖書(shū)館;
【基金】：國(guó)家重點(diǎn)研發(fā)計(jì)劃“鋰能源金屬礦產(chǎn)基地深部探測(cè)技術(shù)示范”項(xiàng)目“我國(guó)鋰能源金屬成礦規(guī)律、靶區(qū)優(yōu)選與重點(diǎn)查證”課題(No.2017YFC0602701) 中國(guó)地質(zhì)調(diào)查局“大宗急缺礦產(chǎn)和戰(zhàn)略性新興產(chǎn)業(yè)礦產(chǎn)調(diào)查”工程“川西甲基卡大型鋰礦資源基地綜合調(diào)查評(píng)價(jià)”項(xiàng)目(No.DD20160055);中國(guó)地質(zhì)調(diào)查局中國(guó)礦產(chǎn)地質(zhì)與成礦規(guī)律綜合集成和服務(wù)(礦產(chǎn)地質(zhì)志)項(xiàng)目(No.DD20160346) 華南重點(diǎn)礦集區(qū)稀有稀散和稀土礦產(chǎn)調(diào)查”項(xiàng)目(No.DD20160056)
【分類號(hào)】：P618.71

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