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| DOI | 10.1016/j.scib.2021.04.028 |
| Plume-ridge interaction induced migration of the Hawaiian-Emperor seamounts | |
| Sun W.; Langmuir C.H.; Ribe N.M.; Zhang L.; Sun S.; Li H.; Li C.; Fan W.; Tackley P.J.; Sanan P. | |
| 发表日期 | 2021 |
| ISSN | 20959273 |
| 起始页码 | 1691 |
| 结束页码 | 1697 |
| 卷号 | 66期号:16 |
| 英文摘要 | The history of the Hawaiian hotspot is of enduring interest in studies of plate motion and mantle flow, and has been investigated by many researchers using the detailed history of the Hawaiian-Emperor Seamount chain. One of the unexplained aspects of this history is the apparent offset of several Emperor seamounts from the Hawaii plume track. Here we show that the volcanic migration rates of the Emperor seamounts based on existing data are inconsistent with the drifting rate of the Pacific plate, and indicate northward and then southward “absolute movements” of the seamounts. Numerical modeling suggests that attraction and capture of the upper part of the plume by a moving spreading ridge led to variation in the location of the plume's magmatic output at the surface. Flow of the plume material towards the ridge led to apparent southward movement of Meiji. Then, the upper part of the plume was carried northward until 65 Ma ago. After the ridge and the plume became sufficiently separated, magmatic output moved back to be centered over the plume stem. These changes are apparent in variations in the volume of seamounts along the plume track. Chemical and isotopic compositions of basalt from the Emperor Seamount chain changed from depleted (strong mid-ocean ridge affinity) in Meiji and Detroit to enriched (ocean island type), supporting declining influence from the ridge. Although its surface expression was modified by mantle flow and by plume-ridge interactions, the stem of the Hawaiian plume may have been essentially stationary during the Emperor period. © 2021 Science China Press |
| 关键词 | Emperor-Hawaii chainGeochemistryNumerical modelingPacific platePlume-ridge interaction |
| 英文关键词 | Numerical models; Submarine geology; Emperor Seamounts Chain; Emperor-hawaii chain; Hot spot; Mantle flow; Migration rates; Pacific plates; Plate motions; Plume-ridge; Plume-ridge interaction; Volcanics; Geochemistry |
| 语种 | 英语 |
| 来源期刊 | Science Bulletin
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/207561 |
| 作者单位 | Center of Deep Sea Research, Center of Ocean Mega Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, China; Laboratory for Marine Mineral Resources, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao, 266237, China; School of Marine Sciences, University of the Chinese Academy of Sciences, Beijing, 100049, China; Department of Earth and Planetary Sciences, Harvard University, Cambridge, MA 02138, United States; Université Paris-Saclay, CNRS, Lab FAST, Orsay, F-91405, France; Center for Excellence in Tibetan Plateau Earth Sciences, Chinese Academy of Sciences, Beijing, 100101, China; Institute of Geophysics, Department of Earth Sciences, ETH ZurichZűrich CH-8092, Switzerland |
| 推荐引用方式 GB/T 7714 | Sun W.,Langmuir C.H.,Ribe N.M.,et al. Plume-ridge interaction induced migration of the Hawaiian-Emperor seamounts[J],2021,66(16). |
| APA | Sun W..,Langmuir C.H..,Ribe N.M..,Zhang L..,Sun S..,...&Sanan P..(2021).Plume-ridge interaction induced migration of the Hawaiian-Emperor seamounts.Science Bulletin,66(16). |
| MLA | Sun W.,et al."Plume-ridge interaction induced migration of the Hawaiian-Emperor seamounts".Science Bulletin 66.16(2021). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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