【摘要】：香爐山式鐵礦是近年地質(zhì)勘查工作中在貴州西部威寧-水城-赫章地區(qū)晚二疊世峨眉山玄武巖組和宣威組之間發(fā)現(xiàn)的新類型鐵礦床。在礦床成因上,該礦床既不同于海相的沉積型鐵礦床,也不同于陸相的古風(fēng)化殼礦床,而是兼有二者的特征,屬于玄武巖古風(fēng)化殼-沉積(堆積)型鐵礦床。通過野外觀察、巖礦石分析測(cè)試、巖礦石鑒定、電子探針微區(qū)分析等手段對(duì)含鐵巖系和礦石特征進(jìn)行研究發(fā)現(xiàn),礦石具有定向排列的火山碎屑、滲流管孔、姜結(jié)仁等典型結(jié)構(gòu)構(gòu)造。初步認(rèn)為,香爐山式鐵礦的形成除具有特殊的成礦背景外,還受到成礦物質(zhì)來源、巖相古地理、古緯度、古氣候、古生物生態(tài)、古風(fēng)化作用等諸多因素的綜合控制,是峨眉山大火成巖省外生成礦作用的典型實(shí)例。
[Abstract]:Xianglushan iron ore deposit is a new type of iron deposit discovered in recent years during geological exploration work between the late Permian Emeishan basalt formation and Xuanwei formation in western Guizhou. The ore deposit is not only different from marine sedimentary iron deposit but also different from continental paleo-weathering crust deposit. It belongs to basalt paleo-weathering crust-sedimentary (accumulative) iron deposit. Through field observation, rock ore analysis and testing, rock ore identification, electron probe microanalysis and so on, the characteristics of iron-bearing rock series and ore are studied. It is found that the ore has a directional arrangement of pyroclasts, percolation pipe holes, etc. Jiang Jieren and other typical structures. It is preliminarily considered that the formation of Xiangrushan iron ore is controlled by many factors, such as the source of ore-forming material, lithofacies and paleogeography, paleolatitude, paleoclimate, paleontological ecology, paleo-weathering and so on, in addition to having a special metallogenic background. It is a typical example of exogenetic mineralization in Emeishan great igneous rock province.
【作者單位】： 貴州理工學(xué)院資源與環(huán)境工程學(xué)院;
【基金】：貴州省普通高等學(xué)�！半[伏礦床勘測(cè)”創(chuàng)新團(tuán)隊(duì)項(xiàng)目(黔教合人才團(tuán)隊(duì)字[2015]56號(hào)) 貴州省國土資源廳公益性基礎(chǔ)性地質(zhì)工作項(xiàng)目(黔國土資地勘函[2015]406號(hào)) 貴州理工學(xué)院教改項(xiàng)目(2015JGY18)
【分類號(hào)】：P618.31

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