Closure of western Pacific marginal basins; rupture of the oceanic crust and the emplacement of ophiolites

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doi: 10.1029/GM088p0405
Author(s): Rangin, Claude; Silver, Eli A.; Tamaki, Kensaku
Author Affiliation(s): Primary:
Université Pierre et Marie Curie, Département de Géologie Structurale, Paris, France
Rosenstiel School of Marine and Atmospheric Sciences, United States
University of California at Santa Cruz, United States
University of Tokyo, Japan
Volume Title: Active margins and marginal basins of the western Pacific
Volume Author(s): Taylor, Brian, editor; Natland, James
Source: Active margins and marginal basins of the western Pacific, edited by Brian Taylor and James Natland. Geophysical Monograph, Vol.88, p.405-417. Publisher: American Geophysical Union, Washington, DC, United States. ISSN: 0065-8448. ISBN: 978-1-118-66396-7 CODEN: GPMGAD
Note: In English with English summary. 51 refs.; illus., incl. sect., geol. sketch map
Summary: Most of the marginal basins of the western Pacific region opened in Cenozoic time and many of these are presently closing. Late Cenozoic basin closing has been documented in the recently drilled Celebes and Sulu seas (Ocean Drilling Program leg 124) and in the Japan Sea (leg 127). The oceanic floors of these young marginal basins were deformed locally before being actively consumed along young subduction zones, with parts of their sedimentary section and crust incorporated into accretionary wedges. The youngest parts of these basins are the first to be deformed, to subduct, or to be incorporated in these accretionary wedges. The initial flexural stage affecting the crust before rupture appears to be a local process.
Year of Publication: 1995
Research Program: ODP Ocean Drilling Program
Key Words: 18 Geophysics, Solid-Earth; Accretionary wedges; Basins; Celebes Sea; Cenozoic; Crust; Geodynamics; Indonesian Seas; Japan Sea; Leg 124; Leg 127; Marginal basins; North Pacific; Northwest Pacific; Ocean Drilling Program; Oceanic crust; Ophiolite; Pacific Ocean; Plate collision; Plate tectonics; Rupture; Stress; Subduction zones; Sulu Sea; West Pacific
Coordinates: N044727 N084709 E1234015 E1204046
N383655 N435912 E1392451 E1343209
Record ID: 1995043355
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