深大断裂之郯庐断裂
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本文为自然资源部金矿成矿过程与资源利用重点实验室和山东省金属矿产成矿地质过程与资源利用重点实验室开放项目(编号KFKT202101)联合资助的成果


The Tanlu Fault: The largest lithospheric fault in eastern China
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    摘要:

    郯庐断裂带是中国东部规模最大的一条岩石圈断裂带,也是中国东部最重要的一条中、新生代岩浆、成矿和构造活动带。不能很好地认识郯庐断裂,就不能很好地认识中国东部中生代的构造演化,也就不能很好地理解欧亚大陆的当今格局。本文从我们近年来对郯庐断裂带沿线中生代岩浆岩的研究成果出发,以任纪舜先生主编的《国际亚洲地质图》为指导思想,提出郯庐断裂的大型走滑启动应与早白垩世(~143 Ma)洋底高原与欧亚大陆的碰撞有关。郯庐断裂这一切割岩石圈深度的大型断裂是导致华北克拉通发生破坏的关键因素,为深部幔源物质的上涌提供了通道。郯庐断裂带两侧有规律地成群成带分布金矿等多金属矿产,多形成于郯庐断裂大型挤压走滑后(~123 Ma)的伸展背景。

    Abstract:

    The Tanlu Fault, the largest lithospheric fault zone in eastern China, is characterized by frequent tectonic activity and is a significant zone of magmatism and mineralization from the Mesozoic to the Cenozoic. A comprehensive understanding of the Tanlu Fault is important for comprehending the tectonic evolution of eastern China during the Mesozoic and the current configuration of the Eurasian continent. Based on our recent research on Mesozoic magmatic rocks along the Tanlu Fault, and guided by the International Geological Map of Asia edited by Prof. Ren Jishun, we propose that the initiation of the Tanlu Fault' s large- scale strike- slip movement is linked to the collision between the oceanic plateau and the Eurasian continent in the early Cretaceous (~143 Ma). This profoundly deep fault, which dissects the lithosphere, is a critical factor in the destruction of the North China Craton, offering a pathway for the ascent of deep mantle- derived materials. The Tanlu Fault Zone hosts a systematic distribution of polymetallic mineral deposits, including gold fields, which formed in an extensional setting following a major compressional strike- slip event (~123 Ma) in eastern China.

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石玉若,康月蓝,彭文骁.2025.深大断裂之郯庐断裂[J].地质学报,99(1):104-119.
SHI Yuruo, KANG Yuelan, PENG Wenxiao.2025. The Tanlu Fault: The largest lithospheric fault in eastern China[J]. Acta Geologica Sinica,99(1):104-119.

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  • 收稿日期:2024-08-18
  • 最后修改日期:2024-10-24
  • 录用日期:2024-10-25
  • 在线发布日期: 2025-01-20
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