Oceanic plateau formation by seafloor spreading implied by Tamu Massif magnetic anomalies
文献类型：期刊论文
| 作者 | Sager, William W.; Zhang, Jinchang1; Tominaga, Masako; Huang, Yanming2,3; Greene, John A.; Nakanishi, Masao5 |
| 刊名 | NATURE GEOSCIENCE
 |
| 出版日期 | 2019 |
| 卷号 | 12期号:8页码:661 |
| ISSN号 | 1752-0894 |
| DOI | 10.1038/s41561-019-0390-y |
| 英文摘要 | Tamu Massif is an immense Mesozoic submarine volcano, the main edifice of the Shatsky Rise oceanic plateau. It is located at a spreading ridge triple junction, but considered to be a shield volcano formed by effusive volcanism from an emerging mantle plume. However, it is unclear how Tamu Massif eruptions interacted with the spreading ridges, which are enormous linear volcanoes themselves. Here we create a magnetic anomaly map for Tamu Massif, which can provide clues about crustal formation. For Tamu Massif, we find dominantly linear magnetic field anomalies caused by crustal blocks of opposite magnetic polarity. This pattern suggests that Tamu Massif is not a shield volcano, but was emplaced by voluminous, focused ridge volcanism. If the magma source at the Shatsky Rise was a plume, it was closely connected to and controlled by seafloor spreading. By implication, even the largest oceanic plateau edifices can be formed by seafloor spreading. We suggest that the widely accepted analogy between continental flood basalts and oceanic plateaus requires reconsideration. |
| 源URL | [http://ir.scsio.ac.cn/handle/344004/17940]  |
| 专题 | 南海海洋研究所_中科院边缘海地质重点实验室 |
| 作者单位 | 1.Chiba Univ, Grad Sch Sci, Chiba, Japan 2.[Sager, William W.] Univ Houston, Dept Earth & Atmospher Sci, Houston, TX 77004 USA 3.Yangtze Univ, Minist Educ, Key Lab Explorat Technol Oil & Gas Resources, Wuhan, Hubei, Peoples R China 4.Texas A&M Univ, Dept Oceanog, College Stn, TX 77843 USA 5.Tominaga, Masako; Greene, John A.] Texas A&M Univ, Dept Geol & Geophys, College Stn, TX USA 6.Chinese Acad Sci, South China Sea Inst Oceanol, CAS Key Lab Ocean & Marginal Sea Geol, Guangzhou, Guangdong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Sager, William W.,Zhang, Jinchang,Tominaga, Masako,et al. Oceanic plateau formation by seafloor spreading implied by Tamu Massif magnetic anomalies[J]. NATURE GEOSCIENCE,2019,12(8):661, +. |
| APA | Sager, William W.,Zhang, Jinchang,Tominaga, Masako,Huang, Yanming,Greene, John A.,&Nakanishi, Masao.(2019).Oceanic plateau formation by seafloor spreading implied by Tamu Massif magnetic anomalies.NATURE GEOSCIENCE,12(8),661. |
| MLA | Sager, William W.,et al."Oceanic plateau formation by seafloor spreading implied by Tamu Massif magnetic anomalies".NATURE GEOSCIENCE 12.8(2019):661. |
入库方式： OAI收割
来源：南海海洋研究所
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