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首页> 外文期刊>Journal of Asian earth sciences >Reviews of the Mesoproterozoic to Neoproterozoic sedimentary sequences and new constraints on the tectono-sedimentary evolution of the southern margin of the North China Craton
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Reviews of the Mesoproterozoic to Neoproterozoic sedimentary sequences and new constraints on the tectono-sedimentary evolution of the southern margin of the North China Craton

机译：北京南方南部边疆建筑沉积沉积序列与新月制古代沉积序列的评论

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摘要

The North China Craton (NCC) is thought to experience multi-stage extensional events after the breakup of the Columbia (Nuna) Supercontinent, and even during the assembly of the Rodinia Supercontinent. In recent years, volcanic and detrital zircon U-Pb dating ages provided new insights into the Mesoproterozoic to Neoproterozoic tectonic framework in the NCC. As the Mesoproterozoic Xiong'er Group in the southern NCC is regarded as the oldest volcanic-sedimentary succession after the final amalgamation of the NCC, we reviewed the sedimentary environments and provenances of Mesoproterozoic to Neoproterozoic sedimentary sequences above the strata in order to understand tectono-sedimentary evolution of the southern NCC during this period. The early Mesoproterozoic sedimentary rocks were deposited in alluvial-fan to fluvial and (fan-) delta-coastal environments suggesting an initial stage of basin development. Fine-grained clastic sedimentary rocks interlayered with carbonate deposition formed on the southern NCC later, and implied a broad subsidence before ca. 1611 Ma. After that, depositional breaks caused by regional tectonic uplifts led to different sedimentary sequences and lateral migration of the depocenter from the north to the south (to the current co-ordinates). The unconformably overlying sedimentary rocks in the north of the southern NCC were deposited in restricted marine basins during late Mesoproterozoic to Neoproterozoic as a whole. However, the enlargement of shallow-marine shelf led to the thick accumulation of carbonates in the southernmost NCC characterized by a deepening-upward trend from the late Mesoproterozoic sequence. The Neoproterozoic sedimentary sequence is typified by sharp increasing terrigenous supplies and frequent changes in environment, and could be deposited in a tectonically active basin in consideration of its close association with volcanism. Detrital zircon grains from the oldest clastic sequence (i.e., the Bingmagou Formation) overlying the Xiong'er volcanic-sedimentary rocks and from the earliest Paleozoic sedimentary rocks (i.e., the Xinji Formation) are used to track changes of provenances. Detrital zircon grains from the Bingmagou Formation display two dominant age peaks at ca. 1850 and 2500 Ma and three secondary peaks at ca. 2100, 2350 and 2700 Ma. In contrast, detrital zircon grains from the Xinji Formation have three major age peaks at ca. 1850, 2200 and 2500 Ma and three subordinate populations of 950, 1100 and 1450 Ma. In combination with the uplifts during the Mesoproterozoic to Neoproterozoic, Neoproterozoic magmatism, and a large amount of detrital zircon derived from Rodinia-related orogenesis in the southern NCC, it is very likely that the major changes of basin configuration could be related to significant tectonic readjustment along with the evolution of the Rodinia Supercontinent.
机译：北方中国克拉顿（NCC）被认为在哥伦比亚（NUNA）的分手后经历了多阶段的延伸活动，甚至在罗迪尼亚的大会上超大了。近年来，Volcanic和Detrital Zircon U-PB约会年龄在NCC中提供了新的见解佐科到NeCoRozoice构造框架的新见解。随着南部南部南部的南部赤道世古雄群体被认为是NCC最终融合后最古老的火山沉积连续，我们审查了沉积的环境和中环中古代沉积物的沉积环境和序列在地层上方的新月内古代沉积序列，以便理解构造 - 南部NCC在此期间沉积演化。早期的中蛋白古代沉积岩沉积在冲积风扇中，以河流和（粉丝）三角洲沿海环境，表明盆地发展的初始阶段。细粒碎片沉积岩石中间有碳酸盐岩沉积，在南部NCC后来形成，并在CA之前暗示了广阔的沉降。 1611 ma。之后，由区域构造隆起引起的沉积断裂导致了从北方到南部的不同沉积序列和侧瓣横向迁移（到目前的协调）。在南部NCC北部的不连贯覆盖的沉积岩石在后期的Mesoproterozoio中沉积在受限制的海洋盆地，整个新月中古代。然而，浅海架的扩大导致最南端的NCC中的碳酸盐浓度累积，其特征在于来自晚期中间蛋白酶的深化上升趋势。通过急剧增加的人造耗材和环境的频繁变化，典型的新蛋白古代沉积序列是典型的，并且可以考虑与火山的密切联系，在一个根本活跃的盆地中存放。从最古老的碎屑序列（即冰巴嘴）覆盖熊的火山沉积岩和最早的古生代沉积岩（即Xinji形成）来追踪杂散的碎屑序列（即冰巴沟）谷物。来自Bingmagou地层的碎屑锆石谷物在CA展示两个主导年龄峰。 1850年和2500 mA和CA的三个二级峰。 2100,2350和2700 mA。相比之下，来自新吉形成的滴乳锆石谷物在加利福尼亚州有三个主要年龄峰。 1850,2200和2500 mA和3个从属950,1100和1450 mA的下属人口。结合在中环佐科的中间蛋白期间的隆起和隆起的隆起，以及南部NCC南部源自鼠霉素相关的奥发生的大量滴乳锆石，很可能是盆地配置的主要变化可能与显着的构造重新调整有关随着罗迪尼亚超大宽度的演变。

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  • 来源
    《Journal of Asian earth sciences》 |2019年第1期|416-429|共14页
  • 作者

    Zuo Pengfei; Li Yu; Zhang Guocheng; Si Rongjun; Wang Shiyan; Liu Sicong; Zheng Deshun; Sun Jiangtao;

  • 作者单位

    Henan Polytech Univ Sch Resources & Environm Jiaozuo 454000 Henan Peoples R China|Shandong Univ Sci & Technol Shandong Prov Key Lab Deposit Mineralizat & Sedim Qingdao 266590 Shandong Peoples R China;

    Henan Polytech Univ Sch Resources & Environm Jiaozuo 454000 Henan Peoples R China;

    Henan Polytech Univ Sch Resources & Environm Jiaozuo 454000 Henan Peoples R China;

    Henan Polytech Univ Sch Resources & Environm Jiaozuo 454000 Henan Peoples R China;

    Henan Inst Geol Survey Zhengzhou 450001 Henan Peoples R China;

    Henan Polytech Univ Sch Resources & Environm Jiaozuo 454000 Henan Peoples R China;

    Henan Polytech Univ Sch Resources & Environm Jiaozuo 454000 Henan Peoples R China;

    Henan Polytech Univ Sch Resources & Environm Jiaozuo 454000 Henan Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    North China Craton; Mesoproterozoic to Neoproterozoic; Sedimentary environments; Provenances; Tectonic evolution;

    机译：华北地区克拉顿;中环佐科古代古代;沉积环境;杂项;构造演变;

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