| 中国岩浆硫化物矿床新分类与小岩体成矿作用 |
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| 引用本文：汤中立，闫海卿，焦建刚，李小虎.2006.New classification of magmatic sulfide deposits in China and ore_forming processes of small intrusive bodies[J].Mineral Deposits,25(1):1~9 |
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| 基金项目:中国地质调查局项目（200110200058）和国家自然科学重点基金项目(40534020) |
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| 中文摘要:中国镍（铜、钴）、铂族等许多重要金属矿产都产出于岩浆硫化物矿床，该类矿床是矿床地质研究的热点之一。笔者综合构造背景、侵入方式、岩体规模、矿床模式、主成矿元素等因素，对中国岩浆硫化物矿床提出了新的分类：① 古大陆内的小侵入体矿床；② 与大陆溢流玄武岩有关的侵入体矿床；③ 造山带内小侵入体矿床；④ 蛇绿岩型矿床。认为小侵入体（小岩体）岩浆矿床是中国主要的矿床类型，并在此基础上，从小岩体矿床的相关概念、3种地质背景、3种火山岩_岩体_矿床组合形式以及成矿的主要因素等方面详细阐述了小岩体成矿作用。结合国内外勘查实践指出，小岩体岩浆矿床仍具有很大的找矿潜力，是中国应继续重点研究的主要矿床类型。最后，还讨论了小岩体矿床不仅在基性_超基性岩体中广泛发育，而且在中酸性岩体中也具有重要的经济价值和研究意义。 |
| 中文关键词:地质学 岩浆硫化物矿床，分类，小岩体，成矿作用，中国 |
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| New classification of magmatic sulfide deposits in China and ore_forming processes of small intrusive bodies |
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| Abstract:Many important metallic resources, such as Ni (Cu, Co) and PGE, exist in magmatic sulfide deposits. Such ore deposits now constitute a hot spot in geological research. The authors have divided the magmatic sulfide deposits in China into four types based on such factors as their tectonic settings, intrusive forms, ore deposit modes and main metallogenic elements. They are: (1) small_intrusion deposits in paleo_continent; (2) small_intrusion deposits in continental flood basalt; (3) small_intrusion deposits in orogenic belt; and (4) deposits connected with ophiolites. According to this classification, the authors hold that the main magmatic metallogenic type in China is small_intrusion mineralization. This paper describes characteristics of this type from small intrusion_related concept, three geological settings, three volcanic_intrusive assemblages and ore_forming key factors. Based on ore exploration experience acquired both at home and abroad, the authors consider that there still exist great potentialities in the prospecting for small_intrusion deposits and that this problem deserves further study. It is also pointed out that small_intrusion ore_forming processes not only widely occur in mafic_ultramafic intrusions, but also have important economic value and research significance in intermediate_acid intrusions. |
| keywords:geology, magmatic sulfide deposit, classification, small intrusion, ore_forming process, China |
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