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Izu-Bonin-Mariana forearc crust as a modern ophiolite analogue

Osamu Ishizuka, Kenichiro Tani and Mark K. Reagan
Izu-Bonin-Mariana forearc crust as a modern ophiolite analogue (in Ophiolites, Yildirim Dilek (editor) and Harald Furnes (editor))
Elements (April 2014) 10 (2): 115-120


Recent geological and geophysical surveys in the Izu-Bonin-Mariana forearc have revealed the occurrence on the seafloor of oceanic crust generated in the initial stages of subduction and the earliest stage of island arc formation. The earliest magmatism after subduction initiation generated forearc basalts, and subsequently, boninitic and tholeiitic to calc-alkaline lavas were produced. Collectively, these rocks make up the extrusive sequence of the Izu-Bonin-Mariana forearc oceanic crust. This volcanic stratigraphy and its time-progressive development are analogous to those documented from many suprasubduction zone ophiolites. Most suprasubduction zone ophiolites may be on-land fragments of forearc oceanic crust, produced during the initiation of subduction and the early stages of island arc development.

ISSN: 1811-5209
Serial Title: Elements
Serial Volume: 10
Serial Issue: 2
Title: Izu-Bonin-Mariana forearc crust as a modern ophiolite analogue
Title: Ophiolites
Author(s): Ishizuka, OsamuTani, KenichiroReagan, Mark K.
Author(s): Dilek, Yildirimeditor
Author(s): Furnes, Haraldeditor
Affiliation: Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology, Tsukuba, Japan
Affiliation: Miami University, Department of Geology and Environmental Earth Science, Oxford, OH, United States
Pages: 115-120
Published: 201404
Text Language: English
Publisher: Mineralogical Society of America and Mineralogical Society of Great Britain and Ireland and Mineralogical Association of Canada and Geochemical Society and Clay Minerals Society, International
References: 32
Accession Number: 2014-062697
Categories: Solid-earth geophysicsIgneous and metamorphic petrology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. sketch map
N10°00'00" - N35°00'00", E140°00'00" - E150°00'00"
Secondary Affiliation: University of Bergen, NOR, NorwayJapan Agency for Marine-Earth Science and Technology, JPN, JapanUniversity of Iowa, USA, United States
Country of Publication: International
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Abstract, copyright, Mineralogical Society of America. Reference includes data from GeoScienceWorld, Alexandria, VA, United States
Update Code: 201433
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