| 关于鲁西龙宝山杂岩体序列归属问题的建议 |
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| 引用本文： | 安茂国,支成龙,尚振,张莹莹,韩宗瑞,姜腾飞,李鹏飞.关于鲁西龙宝山杂岩体序列归属问题的建议[J].山东国土资源,2022,38(7). |
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| 作者姓名： | 安茂国 支成龙 尚振 张莹莹 韩宗瑞 姜腾飞 李鹏飞 |
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| 作者单位： | 山东省鲁南地质工程勘察院（山东省地质矿产勘查开发局第二地质大队） |
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| 摘 要： | 鲁西龙宝山杂岩体由石英正长斑岩、霓辉二长斑岩、闪长玢岩及角闪闪长岩等岩性组成。近年研究结果表明：龙宝山杂岩体相关岩性侵位时间主要集中在125.0～131.7Ma，属早白垩世，与沙沟序列相关岩性形成年龄相近，并且具有相近的地球化学及全岩Sr、Nd同位素特征。鉴于龙宝山与郗山岩体相近的形成年龄、成岩成矿地质条件及地球化学特征，因此建议将龙宝山杂岩体相关岩性单元划归沙沟序列。
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| 关 键 词： | 龙宝山杂岩体 郗山 铜石序列 沙沟序列 早白垩世 稀土矿 |
Suggestions on the Sequence Attribution of Longbaoshan Complex in Western Shandong |
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| AN Maoguo,ZHI Chenglong,SHANG Zhen,ZHANG Yingying,HAN Zongrui,JIANG Tengfei,LI Pengfei.Suggestions on the Sequence Attribution of Longbaoshan Complex in Western Shandong[J].Land and Resources in SHANDONG Province,2022,38(7). |
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| Authors: | AN Maoguo ZHI Chenglong SHANG Zhen ZHANG Yingying HAN Zongrui JIANG Tengfei LI Pengfei |
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| Abstract: | Longbaoshan complex is composed of quartz syenite porphyry, aegirine gabbro porphyry, diorite porphyrite and hornblende feldspar. As showed by recent research results, the emplacement time of related lithology of Longbaoshan complex is mainly concentrated in 125.0~131.7Ma, which belongs to early Cretaceous. It is similar to the formation age of related lithology of Shagou sequence, and has similar geochemical and whole rock Sr and Nd isotopic characteristics. In view of the similar formation age, diagenetic and metallogenic geological conditions and geochemical characteristics of Longbaoshan and Chishan rock bodies, it is suggested that the relevant lithologic units of Longbaoshan complex can be classfied into Shagou sequence. |
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| Keywords: | Longbaoshan complex Chishan Tongshi sequence Shagou sequence early Cretaceous rare earth deposit |
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