Oceanic plateau formation by seafloor spreading implied by Tamu Massif magnetic anomalies
Oceanic plateau formation by seafloor spreading implied by Tamu Massif magnetic anomalies
复制标题
塔姆地块磁异常暗示海底扩张导致海洋高原形成
DOI:
10.1038/s41561-019-0390-y
复制
发表时间:
2019-08
影响因子:
18.3
通讯作者:
J. Zhang
中科院分区:
文献类型:
--
作者:
Sager W. W.;Y. Huang;M. Tominaga;J. A. Greene;M. Nakanishi;J. Zhang
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.
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影响因子:
5.3
作者:
Yanming Huang;W. Sager;M. Tominaga;J. Greene;Jinchang Zhang;M. Nakanishi
通讯作者:
Yanming Huang;W. Sager;M. Tominaga;J. Greene;Jinchang Zhang;M. Nakanishi
影响因子:
3.7
作者:
J. Karson
通讯作者:
J. Karson
DOI:
10.1130/dnag-spec-v1.171
发表时间:
1982
期刊:
--
影响因子:
--
作者:
D. Hussong;E. Winterer;R. Decker
通讯作者:
D. Hussong;E. Winterer;R. Decker
影响因子:
13.6
作者:
Rowley DB;Forte AM;Rowan CJ;Glišović P;Moucha R;Grand SP;Simmons NA
通讯作者:
Simmons NA
影响因子:
56.9
作者:
RICHARDS, MA;DUNCAN, RA;COURTILLOT, VE
通讯作者:
COURTILLOT, VE