Propagators and ridge jumps in a back-arc basin, the West Philippine Basin

Anne Deschamps; Ryuichi Shinjo; Takeshi Matsumoto; Chao Shing Lee; Serge E. Lallemand; Shiguo Wu; M. Shirahashi; S. Inoue; Y. Maeda; R. Matsumura; M. Miyamoto; H. M. Kao; J. Lee; C. H. Tsai; T. No; S. Hosoya; H. Shibata; T. Kodera; Y. Sato; Y. Sagawa; O. Cabrera

doi:10.1111/j.1365-3121.2008.00824.x

Propagators and ridge jumps in a back-arc basin, the West Philippine Basin

Anne Deschamps, Ryuichi Shinjo, Takeshi Matsumoto, Chao Shing Lee, Serge E. Lallemand, Shiguo Wu, M. Shirahashi, S. Inoue, Y. Maeda, R. Matsumura, M. Miyamoto, H. M. Kao, J. Lee, C. H. Tsai, T. No, S. Hosoya, H. Shibata, T. Kodera, Y. Sato, Y. SagawaO. Cabrera

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摘要

We explore the tectono-magmatic processes in the western West Philippine Basin, Philippine Sea Plate, using bathymetric data acquired in 2003 and 2004. The northwestern part of the basin formed through a series of northwestward propagating rifts. We identify at least five sequences of propagating rifts, probably triggered by mantle flow away from the mantle thermal anomaly that is responsible for the origin of the Benham and Urdenata plateaus. Gravitational forces caused by along-axis topographic gradient and a ∼30° ridge reorientation appear to also be driving the rift propagations. The along-axis mantle flow appears to be reduced and deflected along the Luzon-Okinawa fracture zone, because the spreading system remained stable west of this major fault zone. North-east of the Benham plateau, a left-lateral fracture zone has turned into a NE-SW-trending spreading axis. As a result, a microplate developed at the triple junction.

原文	???core.languages.en_GB???
頁（從 - 到）	327-332
頁數	6
期刊	Terra Nova
卷	20
發行號	4
DOIs	https://doi.org/10.1111/j.1365-3121.2008.00824.x
出版狀態	已出版 - 8月 2008

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10.1111/j.1365-3121.2008.00824.x

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Deschamps, A., Shinjo, R., Matsumoto, T., Lee, C. S., Lallemand, S. E., Wu, S., Shirahashi, M., Inoue, S., Maeda, Y., Matsumura, R., Miyamoto, M., Kao, H. M., Lee, J., Tsai, C. H., No, T., Hosoya, S., Shibata, H., Kodera, T., Sato, Y., ... Cabrera, O. (2008). Propagators and ridge jumps in a back-arc basin, the West Philippine Basin. Terra Nova, 20(4), 327-332. https://doi.org/10.1111/j.1365-3121.2008.00824.x

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title = "Propagators and ridge jumps in a back-arc basin, the West Philippine Basin",

abstract = "We explore the tectono-magmatic processes in the western West Philippine Basin, Philippine Sea Plate, using bathymetric data acquired in 2003 and 2004. The northwestern part of the basin formed through a series of northwestward propagating rifts. We identify at least five sequences of propagating rifts, probably triggered by mantle flow away from the mantle thermal anomaly that is responsible for the origin of the Benham and Urdenata plateaus. Gravitational forces caused by along-axis topographic gradient and a ∼30° ridge reorientation appear to also be driving the rift propagations. The along-axis mantle flow appears to be reduced and deflected along the Luzon-Okinawa fracture zone, because the spreading system remained stable west of this major fault zone. North-east of the Benham plateau, a left-lateral fracture zone has turned into a NE-SW-trending spreading axis. As a result, a microplate developed at the triple junction.",

author = "Anne Deschamps and Ryuichi Shinjo and Takeshi Matsumoto and Lee, {Chao Shing} and Lallemand, {Serge E.} and Shiguo Wu and M. Shirahashi and S. Inoue and Y. Maeda and R. Matsumura and M. Miyamoto and Kao, {H. M.} and J. Lee and Tsai, {C. H.} and T. No and S. Hosoya and H. Shibata and T. Kodera and Y. Sato and Y. Sagawa and O. Cabrera",

year = "2008",

month = aug,

doi = "10.1111/j.1365-3121.2008.00824.x",

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Deschamps, A, Shinjo, R, Matsumoto, T, Lee, CS, Lallemand, SE, Wu, S, Shirahashi, M, Inoue, S, Maeda, Y, Matsumura, R, Miyamoto, M, Kao, HM, Lee, J, Tsai, CH, No, T, Hosoya, S, Shibata, H, Kodera, T, Sato, Y, Sagawa, Y & Cabrera, O 2008, 'Propagators and ridge jumps in a back-arc basin, the West Philippine Basin', Terra Nova, 卷 20, 編號 4, 頁 327-332. https://doi.org/10.1111/j.1365-3121.2008.00824.x

TY - JOUR

T1 - Propagators and ridge jumps in a back-arc basin, the West Philippine Basin

AU - Deschamps, Anne

AU - Shinjo, Ryuichi

AU - Matsumoto, Takeshi

AU - Lee, Chao Shing

AU - Lallemand, Serge E.

AU - Wu, Shiguo

AU - Shirahashi, M.

AU - Inoue, S.

AU - Maeda, Y.

AU - Matsumura, R.

AU - Miyamoto, M.

AU - Kao, H. M.

AU - Lee, J.

AU - Tsai, C. H.

AU - No, T.

AU - Hosoya, S.

AU - Shibata, H.

AU - Kodera, T.

AU - Sato, Y.

AU - Sagawa, Y.

AU - Cabrera, O.

PY - 2008/8

Y1 - 2008/8

N2 - We explore the tectono-magmatic processes in the western West Philippine Basin, Philippine Sea Plate, using bathymetric data acquired in 2003 and 2004. The northwestern part of the basin formed through a series of northwestward propagating rifts. We identify at least five sequences of propagating rifts, probably triggered by mantle flow away from the mantle thermal anomaly that is responsible for the origin of the Benham and Urdenata plateaus. Gravitational forces caused by along-axis topographic gradient and a ∼30° ridge reorientation appear to also be driving the rift propagations. The along-axis mantle flow appears to be reduced and deflected along the Luzon-Okinawa fracture zone, because the spreading system remained stable west of this major fault zone. North-east of the Benham plateau, a left-lateral fracture zone has turned into a NE-SW-trending spreading axis. As a result, a microplate developed at the triple junction.

AB - We explore the tectono-magmatic processes in the western West Philippine Basin, Philippine Sea Plate, using bathymetric data acquired in 2003 and 2004. The northwestern part of the basin formed through a series of northwestward propagating rifts. We identify at least five sequences of propagating rifts, probably triggered by mantle flow away from the mantle thermal anomaly that is responsible for the origin of the Benham and Urdenata plateaus. Gravitational forces caused by along-axis topographic gradient and a ∼30° ridge reorientation appear to also be driving the rift propagations. The along-axis mantle flow appears to be reduced and deflected along the Luzon-Okinawa fracture zone, because the spreading system remained stable west of this major fault zone. North-east of the Benham plateau, a left-lateral fracture zone has turned into a NE-SW-trending spreading axis. As a result, a microplate developed at the triple junction.

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U2 - 10.1111/j.1365-3121.2008.00824.x

DO - 10.1111/j.1365-3121.2008.00824.x

M3 - 期刊論文

AN - SCOPUS:48249153855

SN - 0954-4879

VL - 20

SP - 327

EP - 332

JO - Terra Nova

JF - Terra Nova

IS - 4

ER -

Propagators and ridge jumps in a back-arc basin, the West Philippine Basin

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