冀东-辽西主要金矿矿集区地质特征的差异性与成矿作用的统一性探析
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Study on the difference of the geological character and the unity of metallization of the regions of gold deposits in east Hebei and west Liaoning province
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    摘要:

    通过对燕辽成矿带东段冀东-辽西金矿床基础地质地球化学资料分析,结合区域构造演化和成矿时间及其分布空间的特异性,认为冀东-辽西金矿成矿物质具有相同的深来源特征,由于具体的构造背景不同而表现出矿床类型和就位空间的差异性,提出了燕辽裂陷槽是冀东-辽西金矿床空间分布的诱因,并提出冀东-辽西金成矿演化分为陆陆碰撞拼贴期(4.5~1.85Ga)、陆内裂谷巨厚沉积期(1.85~0.6Ga)、板内造山挤压隆升期(200~145Ma)、构造体制转换成矿期(145~100Ma)和成矿后的改造期(100Ma~至今)等5个统一阶段的结论性认识。

    Abstract:

    Through analysis of the basic geological and geochemical data of gold deposits in east Hebei province and west Liaoning province, based on the factors of regional tectonic evolution, metallogenic time and the mineral spatial distribution, the study raise that the Ore-forming materials of the gold deposits in the two region have the same resources. The different structure backgrounds resulted in the different types and spatial distribution of the gold deposits. The study put forward that Yan liao crack trapped slot were structures of ore housing and the evolution of gold deposits experience 5 periods: 1) the collision period of the land to land (4.5~1.85Ga), 2) the deposit period of the rift(1.85~0.6Ga); 3) the lift period of the Orogenic extrusion(200~145Ma), 4) the transform period the structures of the deposits(145~100Ma) and 5) the transform period the deposits。

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贾三石,王恩德,付建飞,宋建潮,席晓凤.2011.冀东-辽西主要金矿矿集区地质特征的差异性与成矿作用的统一性探析[J].地质学报,85(9):1493-1506.
jiasanshi, Wang Ende.2011. Study on the difference of the geological character and the unity of metallization of the regions of gold deposits in east Hebei and west Liaoning province[J]. Acta Geologica Sinica,85(9):1493-1506.

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  • 收稿日期:2010-12-17
  • 最后修改日期:2010-12-17
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  • 在线发布日期: 2011-09-07
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