Fore‐arc basalts and subduction initiation in the Izu‐Bonin‐Mariana system

K. Reagan, Mark; Ishizuka, Osamu; J. Stern, Robert; A. Kelley, K.; Ohara, Yasuhiko; Blichert‐Toft, Janne; H. Bloomer, Sherman; Cash, Jennifer; Fryer, P.; B. Hanan, B.; L. Hickey-Vargas, Rosemary; Ishii, Teruaki; Kimura, Jun‐Ichi; Peate, D.W.; C. Rowe, Michael; Woods, Melinda

doi:10.1029/2009gc002871

Public

Fore‐arc basalts and subduction initiation in the Izu‐Bonin‐Mariana system

Published in Geochemistry Geophysics Geosystems • Mar 1, 2010

Authors:

Mark K. Reagan

Osamu Ishizuka

Robert J. Stern

Abstract

Recent diving with the JAMSTEC Shinkai 6500 manned submersible in the Mariana fore arc southeast of Guam has discovered that MORB‐like tholeiitic basalts crop out over large areas. These “fore‐arc basalts” (FAB) underlie boninites and overlie diabasic and gabbroic rocks. Potential origins include er...

Subject

Geology

Subduction

Basalt

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