The role of magmatism in the thinning and breakup of the South China Sea continental margin: Special Topic: the South China Sea Ocean Drilling
Date
2019-08-13Author
Sun, Zhen
Concept link
Lin, Jian
Concept link
Qiu, Ning
Concept link
Jian, Zhimin
Concept link
Wang, PinXian
Concept link
Pang, Xiong
Concept link
Zheng, Jinyun
Concept link
Zhu, Benduo
Concept link
Metadata
Show full item recordCitable URI
https://hdl.handle.net/1912/25555As published
https://doi.org/10.1093/nsr/nwz116DOI
10.1093/nsr/nwz116Abstract
Magmatism plays a key role in the process of continental margin breakup and ocean formation. Even in the extremely magma-poor Iberia and Newfoundland margin, studies of field outcrops have shown that syn-rift magmatism had participated in rifting from a very early stage and contributed directly to the rifting process. The final transition from exhumed continental mantle to the ocean formation is also triggered by the accumulation and eruption of magma [1]. Therefore, Atlantic-type passive continental margins are classified into two end-members: magma-poor (non-volcanic) and magma-rich (volcanic). The differences between them lie in whether a large amount of intrusive and extrusive magmatism from the mantle plume/hotspot is involved in the syn-rift and breakup stages. A magma-rich margin [2] should include the following characteristics: (i) a high-velocity lower crust (HVLC) caused by syn-rift mafic magma underplating; (ii) continental crust intruded by abundant sills and dikes; (iii) a large volume of seaward-dipping reflectors (SDRs) caused by flood basalt eruption or tuffs. All other margins are classified as magma-poor margins.
Description
© The Author(s), 2019. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Sun, Z., Lin, J., Qiu, N., Jian, Z., Wang, P., Pang, X., Zheng, J., & Zhu, B. The role of magmatism in the thinning and breakup of the South China Sea continental margin: Special Topic: the South China Sea Ocean Drilling. National Science Review, 6(5), (2019): 871-876, doi:10.1093/nsr/nwz116.
Collections
Suggested Citation
Sun, Z., Lin, J., Qiu, N., Jian, Z., Wang, P., Pang, X., Zheng, J., & Zhu, B. (2019). The role of magmatism in the thinning and breakup of the South China Sea continental margin: Special Topic: the South China Sea Ocean Drilling. National Science Review, 6(5), 871-876.The following license files are associated with this item:
Related items
Showing items related by title, author, creator and subject.
-
Internal solitons in the northeastern south China Sea. Part I: sources and deep water propagation
Ramp, Steven R.; Tang, Tswen Yung; Duda, Timothy F.; Lynch, James F.; Liu, Antony K.; Chiu, Ching-Sang; Bahr, Frederick L.; Kim, Hyoung-Rok; Yang, Yiing-Jang (IEEE, 2004-10)A moored array of current, temperature, conductivity, and pressure sensors was deployed across the Chinese continental shelf and slope in support of the Asian Seas International Acoustics Experiment. The goal of the ... -
Subtidal current structure and variability of the continental shelf and slope of the northern South China Sea
Tai, Jen-Hua; Yang, Kai-Chieh; Gawarkiewicz, Glen G. (Terrestrial, Atmospheric and Oceanic Sciences, 2017-06)The spatial structures and temporal variations in subtidal currents in the northern South China Sea (SCS) are quantified in this study using 20-day to 9-month measurements from eight acoustic Doppler current profiler ... -
Climate modulates internal wave activity in the Northern South China Sea
DeCarlo, Thomas M.; Karnauskas, Kristopher B.; Davis, Kristen A.; Wong, George T. F. (John Wiley & Sons, 2015-02-10)Internal waves (IWs) generated in the Luzon Strait propagate into the Northern South China Sea (NSCS), enhancing biological productivity and affecting coral reefs by modulating nutrient concentrations and temperature. Here ...