| 苑寿涛,李春霞,吕晓强,丁汝福.新疆北准噶尔加波萨尔铜金矿化区火山岩地球化学特征及地质意义[J].矿产勘查,2014,5(1):6-13 |
| 新疆北准噶尔加波萨尔铜金矿化区火山岩地球化学特征及地质意义 |
| Geochemical characteristics of the volcanic rocks and its geological significance in the Jiabosaer Cu-Au ore deposit area, northern Jungaar,Xinjing |
| 投稿时间：2013-07-22 |
| DOI： |
| 中文关键词: 加波萨尔 铜金矿 火山岩 地球化学 新疆北部 |
| 英文关键词: Jiabosaer Cu-Au ore deposit volcanic rocks geochemical characteristics northern Xinjiang |
| 基金项目:“十二五”国家科技支撑项目(编号:2011BAB06B03-05)和中国地质调查局项目(编号:1212011140062)共同资助。 |
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| 中文摘要: |
| 加波萨尔铜金矿化区内基性—中性—酸性火山岩均比较发育。对矿化区内下泥盆统托让格库都克组(D1t)和中泥盆统蕴都喀拉组(D2y)火山岩的主量、微量元素组成研究表明:D1t组玄武岩为次铝质碱性系列,微量元素特征显示其形成于洋岛环境；D2y组玄武岩、安山岩部分为次铝质碱性系列,部分为弱过铝质拉斑系列,微量元素特征显示其形成于洋、陆过渡部位的岛弧环境；D1t组流纹岩为过铝质亚碱性系列。D2y组内出现埃达克岩和钠质低钛富铜玄武岩,结合其他成矿有利条件,预示D2y组火山岩具有铜金矿化的巨大潜力。 |
| 英文摘要: |
| The volcanic rocks from the basic-volcanics, intermediate volcanic to the felsic volcanics are widely distributed in the Jiabosaer Cu-Au ore deposit area. The geochemical characteristics of the volcanic rocks is closely related to the copper-gold mineralization. The study results on the main and trace element contents of the volcanic rocks within the lower Devonian Tuoranggerkuduke group(D1t)and the middle Devonian Yundukala group(D2y) show that:the basalts of the D1t group belong to the sub-aluminum alkaline series,and formed in the oceanic island environment indicted by the trace element characteristics；The one part of the D2y group basalts and andesites belong to the sub-aluminum alkaline series,the other part belongs to weakly peraluminous tholeiitic series,which are formed in the island arc environment between ocean and continent.The rhyolites of D1t group are of peraluminous subalkaline series,which were affected by the post-collision orogeny. Within the D2y group, a large amount of the adakite and the low titanium sodic copper-rich basalts occur, which suggest there is a great potential for discovering the copper- gold deposit within the D2y volcanic rocks in the combination analysis of other favorable mineralization conditions. |
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