A Paleogene magmatic overprint on Cretaceous seamounts of the western Pacific
A Paleogene magmatic overprint on Cretaceous seamounts of the western Pacific
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西太平洋白垩纪海山上的古近纪岩浆叠印
DOI:
10.1111/iar.12386
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发表时间:
2021
期刊:
影响因子:
1.5
通讯作者:
Ishii Teruaki
中科院分区:
文献类型:
--
作者:
Hirano Naoto;Sumino Hirochika;Morishita Taisei;Machida Shiki;Kawano Takaomi;Yasukawa Kazutaka;Hirata Takafumi;Kato Yasuhiro;Ishii Teruaki
The West Pacific Seamount Province (WPSP) represents a series of short‐lived Cretaceous hotspot tracks. However, no intraplate volcanoes in advance of petit‐spot volcanism erupted near a trench have been identified after the formation of the WPSP on the western Pacific Plate. This study reports new ages for Paleogene volcanic edifices within the northern WPSP, specifically the Ogasawara Plateau and related ridges, and Minamitorishima Island. These Paleogene ages are the first reported for basaltic rocks on western Pacific seamounts, in an area that has previously only yielded Cretaceous ages. The newly found Paleogene volcanisms overprint the Early–middle Cretaceous volcanic edifices, because the seamount or paleo‐island material‐covered reefal limestone caps on these edifices are uniformly older than the Paleogene volcanism identified in this study. This study outlines several possible causative factors for the Paleogene volcanism overprinting onto existing Cretaceous seamounts, including volcanism related to lithospheric stress, or a younger hotspot track within the northern part of the WPSP that records magmatism from ~60 Ma.
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影响因子:
2.8
作者:
Uenzelmann-Neben;Schmidt;D. N.. Niessen
通讯作者:
D. N.. Niessen
影响因子:
5.8
作者:
G. Valentine;N. Hirano
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G. Valentine;N. Hirano
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3.5
作者:
Kato, Y;Fujinaga, K;Suzuki, K
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Suzuki, K
影响因子:
2.9
作者:
W. Sager;R. Duncan;D. Handschumacher
通讯作者:
D. Handschumacher
影响因子:
18.3
作者:
J. O’Connor;K. Hoernle;R. Müller;J. Morgan;N. Butterworth;F. Hauff;D. Sandwell;W. Jokat;J. Wijbrans;P. Stoffers
通讯作者:
J. O’Connor;K. Hoernle;R. Müller;J. Morgan;N. Butterworth;F. Hauff;D. Sandwell;W. Jokat;J. Wijbrans;P. Stoffers