Large‐scale morphotectonics of the ocean‐continent transition zone between the Western Pacific Ocean and the East Asian Continent: a link of deep process to the Earth' s surface system
Large‐scale morphotectonics of the ocean‐continent transition zone between the Western Pacific Ocean and the East Asian Continent: a link of deep process to the Earth' s surface system
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DOI：
10.1002/gj.2845
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发表时间：
2016-07
影响因子：
1.8
通讯作者：
L. V. Dmitrienko;S. Z. Li;X. Cao;Y. Suo;Y. Wang;L. Dai;I. Somerville
中科院分区：
文献类型：
--
作者：
L. V. Dmitrienko;S. Z. Li;X. Cao;Y. Suo;Y. Wang;L. Dai;I. Somerville
作为太平洋板块的活动边缘，大洋-大陆过渡带记录了从晚中生代到今天的重大构造事件。西太平洋与东亚大陆边缘过渡带的发育经历了两个阶段。第一阶段，中生代开始形成松辽、渤海湾盆地，新生代开始向东南方向运动的活动构造事件，发育东海、日本海盆地。运用构造学和地球物理分析方法，对该区构造活动最显著时期的过渡带进行了构造重建。我们认为，深部过程对过渡带中新生代地表地貌系统有直接影响。本文通过对四个盆地的地层、沉积特征、岩浆活动、重力异常、地幔层析成像结果、地壳和岩石圈厚度等的对比分析，试图揭示大陆边缘动力学机制。结果表明，松辽、渤海湾盆地与东海、日本海盆地在地貌特征和构造演化序列上具有相似性。中新生代的地貌构造过程主要是古太平洋板块的俯冲后退和向东的构造跳跃。版权所有© 2016约翰威利父子有限公司.
As an active margin of the Pacific Plate, the ocean‐continent transition zone records major tectonic events from the Late Mesozoic to the present‐day. The development of the transition zone between the Western Pacific Ocean and the East Asian Continental Margin occurred in two stages. In the first stage, the formation of the Songliao and Bohai Bay basins was initiated earlier in the Mesozoic and then the active tectonic events that moved southeastwards to develop the East China Sea and Japan Sea basins in the Cenozoic. We use the methods of tectonics and geophysical analysis for the tectonic reconstruction of the transition zone in the most significant periods of tectonic activity in this area. We propose that the deep processes have a direct influence on the Meso‐Cenozoic surface geomorphologic system in the transition zone. This paper tries to reveal the mechanism of continental margin dynamics by comparing the stratigraphy, sedimentary character and magmatism for each of the four basins, as well as the gravity anomalies, the results of mantle tomography, and thickness of the crust and lithosphere. Our results show that the Songliao and Bohai Bay basins and the East China Sea and Japan Sea basins have similarities in their geomorphological characteristics and sequential tectonic evolution. The Meso‐Cenozoic morphotectonic processes are dominated by the subduction retreat of the (Palaeo‐)Pacific Plate and the eastward tectonic jump. Copyright © 2016 John Wiley & Sons, Ltd.