Paleoproterozoic magmatic and metamorphic events link Yangtze to northwest Laurentia in the Nuna supercontinent
Paleoproterozoic magmatic and metamorphic events link Yangtze to northwest Laurentia in the Nuna supercontinent
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古元古代岩浆和变质事件将长江与努纳超大陆劳伦大陆西北部连接起来
DOI：
10.1016/j.epsl.2015.11.005
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发表时间：
2016
影响因子：
5.3
通讯作者：
Zhao, Jun-Hong
中科院分区：
文献类型：
--
作者：
Wang, Wei;Cawood, Peter A.;Zhou, Mei-Fu;Zhao, Jun-Hong
越南北部花岗质片麻岩中的锆石具有2.28-2.19 Ga的岩浆核，是华南扬子地块首次报道的具有此年龄的陆壳证据。锆石边缘的增生指示了1.97- 1.95Ga和1.83Ga的两期变质作用。这些事件，沿着先前报道的2.36 Ga变质过度生长的2.9 Ga结晶锆石从同一地区，建议一系列的事件类似的记录西北地区的劳伦，可能西伯利亚，这是与组装的努纳超大陆。这些事件包括2.4- 2.3Ga的阿罗史密斯造山带和2.32- 1.80Ga的一系列事件，包括劳伦特西北部和西伯利亚的增生岩浆活动（2.32-2.07 Ga），Thelon造山带（2.02-1.96 Ga）和劳伦蒂亚trans-Hudson造山带期间上级子和Hearne-Rae子之间的1.85-1.80 Ga碰撞，和西伯利亚的Akitkan造山带（2.03- 1.86Ga）。后来，努纳的分裂企图可能由ca代表。1.80扬子地块西南部和劳伦大陆西北部与1.59 Ga的同源伸展作用有关的沉积和岩浆作用。这些相关性有利于位置的扬子地块毗邻西北劳伦，并可能西伯利亚，在努纳超大陆。
Zircons from granitic gneisses in North Vietnam have magmatic cores dated at 2.28–2.19 Ga, and constitute the first reported evidence of continental crust with these ages in the Yangtze Block of the South China Craton. Overgrowths on zircon rims indicate two periods of metamorphism at 1.97–1.95 Ga and ∼1.83 Ga. These events, along with a previously reported ∼2.36 Ga metamorphic overgrowth on ∼2.9 Ga crystallized zircons from the same region, suggest a sequence of events similar to that recorded for the northwestern region of Laurentia and possibly Siberia, which are associated with assembly of the Nuna supercontinent. These include the 2.4–2.3 Ga Arrowsmith Orogen and a range of events in the interval 2.32–1.80 Ga, including accretionary magmatism in northwestern Laurentia and Siberia (2.32–2.07 Ga), the Thelon orogeny (2.02–1.96 Ga) and the 1.85–1.80 Ga collision between the Superior and Hearne–Rae cratons during the Trans-Hudson Orogen in Laurentia, and the Akitkan Orogen in Siberia (2.03–1.86 Ga). Subsequent attempted breakup of Nuna may be represented by ca. 1.80 to 1.59 Ga consanguineous extension related sedimentation and magmatism in the southwestern Yangtze Block and northwestern Laurentia. These correlations favor location of the Yangtze Block adjacent to northwest Laurentia, and possibly Siberia, within the Nuna supercontinent.
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影响因子：
3.8
作者：
B. Frost;O. Avchenko;K. Chamberlain;C. Frost
通讯作者：
B. Frost;O. Avchenko;K. Chamberlain;C. Frost
影响因子：
0.9
作者：
R. Berman;M. Sanborn-Barrie;R. Stern;C. Carson
通讯作者：
R. Berman;M. Sanborn-Barrie;R. Stern;C. Carson
DOI：
10.4095/77642
发表时间：
1993
期刊：
--
影响因子：
--
作者：
M. Villeneuve;G. Ross;R. Thériault;W. Miles;R. Parrish;J. Broome
通讯作者：
M. Villeneuve;G. Ross;R. Thériault;W. Miles;R. Parrish;J. Broome
影响因子：
5.8
作者：
A. Draut;P. Clift
通讯作者：
A. Draut;P. Clift
影响因子：
3.8
作者：
Shao‐Bing Zhang;Yong Zheng;Y. Wu;Zi‐Fu Zhao;Shan Gao;Fu-Yuan Wu
通讯作者：
Shao‐Bing Zhang;Yong Zheng;Y. Wu;Zi‐Fu Zhao;Shan Gao;Fu-Yuan Wu