Metallogeny and craton destruction: Records from the North China Craton
Metallogeny and craton destruction: Records from the North China Craton
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成矿与克拉通破坏：华北克拉通的记录
DOI：
10.1016/j.oregeorev.2013.03.002
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发表时间：
2014
影响因子：
3.3
通讯作者：
Sheng-Rong Li, M. Santosh
中科院分区：
文献类型：
--
作者：
Sheng-Rong Li, M. Santosh
北中国克拉通成矿作用与克拉通破坏之间的关系尚不清楚，尤其是克拉通内部的机制。本文总结了核壳体形成演化史上的主要阶段，主要矿种的时空分布和类型，以及地幔对成矿作用的贡献，试图评价成矿的地球动力学背景和矿床的形成机制。早前寒武纪历史见证了2.5Ga以前克拉通微地块的拼合和基本构造结构的建立。这些微地块的边界和NCC的边缘仍然是薄弱带，是在后来的构造热事件中克拉通发生不均匀破坏的主要场所。这些带记录了古元古代早、中期与造山作用有关的金、铜、铁、钛的形成，年龄为2.5~1.8 Ma。约480 Ma的早奥陶世金伯利岩和金刚石成矿作用，324~300 Ma的晚石炭世和早中二叠世钙碱性、I型花岗岩和金矿床，以及沿这些带和地块边缘发育的三叠纪碱性岩和金银多金属矿床分别与地幔上升、西伯利亚板块向南俯冲和扬子板块向北俯冲有关。大量侏罗纪花岗岩和白垩纪侵入岩携带金、钼、铜、铅、锌矿床，也分布在软弱带和块体边缘。这些矿床大多集中在NCC东部，这与太平洋板块向西俯冲导致的岩石圈减薄有关。尽管侏罗纪克拉通边缘和内部极少有岩浆活动和成矿记录，但它们的顶峰出现在克拉通东部的白垩纪，标志着当时克拉通的大规模破坏。微大陆块体之间的边界交界处具有广泛的不均匀减薄的特征。我们认为，这些结合点可能是未来在NCC找矿的目标。
The link between metallogeny and craton destruction in the North China Craton (NCC) remains poorly understood, particularly the mechanisms within the interior of the craton. In this overview, we summarize the major stages in the history of formation and evolution of the NCC, the spatio-temporal distribution and types of major ore species, as well as mantle contribution to the metallogeny, in an attempt to evaluate the geodynamic settings of metallogeny and the mechanisms of formation of the ore deposits. The early Precambrian history of the NCC witnessed the amalgamation of micro-blocks and construction of the fundamental tectonic architecture of the craton by 2.5 Ga. The boundaries of these micro-blocks and the margins of the NCC remained as weak zones and were the principal locales along which inhomogeneous destruction of the craton occurred during later tectonothermal events. These zones record the formation of orogeny related gold, copper, iron and titanium during the early to middle Paleoproterozoic with ages ranging from 2.5 to 1.8 Ma. The Early Ordovician kimberlite and diamond mineralization at ca. 480 Ma, the Late Carboniferous and Early to middle Permian calc-alkaline, I-type granitoids and gold deposits of 324–300 Ma, and the Triassic alkaline rocks and gold–silver-polymetallic deposits occurring along these zones and the margins of the blocks correlate with rising mantle plume, southward subduction of the Siberian plate and northward subduction of the Yangtze plate, respectively. The voluminous Jurassic granitoids and Cretaceous intrusives carrying gold, molybdenum, copper, lead and zinc deposits are also localized along the weak zones and block margins. The concentration of most of these deposits in the eastern part of the NCC invokes correlation with lithosphere thinning associated with the westward subduction of the Pacific plate. Although magmatism and mineralization have been recorded along the margins and few places within the interior of the NCC in the Jurassic, their peak occurred in the Cretaceous in the eastern part of the NCC, marking large scale destruction of the craton at this time. The junctions of the boundaries between the micro-continental blocks are characterized by extensive inhomogeneous thinning. We propose that these junctions are probably for future mineral exploration targeting in the NCC.
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影响因子：
--
作者：
Lu Feng
通讯作者：
Lu Feng
胶东半岛幔源流体与金矿成矿的关系——来自D−O−C−S同位素系统学的证据
影响因子：
3.3
作者：
通讯作者：
--
影响因子：
3.3
作者：
Yan‐jing Chen;Huayong Chen;K. Zaw;F. Pirajno;Zengjie Zhang
通讯作者：
Yan‐jing Chen;Huayong Chen;K. Zaw;F. Pirajno;Zengjie Zhang
影响因子：
6.1
作者：
Huafeng Zhang;M. Zhai;M. Santosh;Chunrong Diwu;Sheng‐Rong Li
通讯作者：
Huafeng Zhang;M. Zhai;M. Santosh;Chunrong Diwu;Sheng‐Rong Li
影响因子：
3.9
作者：
Yigang Xu;M. Menzies;P. Vroon;J. Mercier;Chuan-yong Lin
通讯作者：
Yigang Xu;M. Menzies;P. Vroon;J. Mercier;Chuan-yong Lin