A deep section of accretionary complex: Susunai Complex in Sakhalin Island, Northwest Pacific Margin
Abstract A deep section of accretionary complex, the metamorphosed Susunai Complex, is observed on Sakhalin Is., Russia. High pressure part of pumpellyite‐actinolite facies metavolcanics, metacherts and metapelites are well exposed and constitute a tectonic pile preserving primary structures related...
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crwiley:10.1111/j.1440-1738.1992.tb00067.x 2024-09-15T18:32:47+00:00 A deep section of accretionary complex: Susunai Complex in Sakhalin Island, Northwest Pacific Margin Kimura, Gaku Sakakibara, Masayuki Ofuka, Hisashi Ishizuka, Hideo Miyashita, Sumio Okamura, Makoto Melinikov, Olex A. Lushchenko, Vilera 1992 http://dx.doi.org/10.1111/j.1440-1738.1992.tb00067.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1440-1738.1992.tb00067.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1440-1738.1992.tb00067.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Island Arc volume 1, issue 1, page 166-175 ISSN 1038-4871 1440-1738 journal-article 1992 crwiley https://doi.org/10.1111/j.1440-1738.1992.tb00067.x 2024-07-25T04:23:35Z Abstract A deep section of accretionary complex, the metamorphosed Susunai Complex, is observed on Sakhalin Is., Russia. High pressure part of pumpellyite‐actinolite facies metavolcanics, metacherts and metapelites are well exposed and constitute a tectonic pile preserving primary structures related to underplating of the oceanic crust. Three stages of deformation, D 1 through D 3 , suggest successive deformation during subduction, underplating and exhumation of the complex. Oceanic material in the complex is more abundant than other well documented ancient accretionary complexes (e.g. the Shimanto Belt in southwest Japan and the Ghost Rocks Formation in Alaska), which were shallowly underplated. At Susunai, deep down‐stepping of a décollément has scraped off the upper part of the oceanic crust, primarily the pillowed basalt horizon. This down‐stepping results from crustal weakening as overpressured water is released from the fractured oceanic crust during metamorphism. Article in Journal/Newspaper Sakhalin Alaska Wiley Online Library The Island Arc 1 1 166 175 |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract A deep section of accretionary complex, the metamorphosed Susunai Complex, is observed on Sakhalin Is., Russia. High pressure part of pumpellyite‐actinolite facies metavolcanics, metacherts and metapelites are well exposed and constitute a tectonic pile preserving primary structures related to underplating of the oceanic crust. Three stages of deformation, D 1 through D 3 , suggest successive deformation during subduction, underplating and exhumation of the complex. Oceanic material in the complex is more abundant than other well documented ancient accretionary complexes (e.g. the Shimanto Belt in southwest Japan and the Ghost Rocks Formation in Alaska), which were shallowly underplated. At Susunai, deep down‐stepping of a décollément has scraped off the upper part of the oceanic crust, primarily the pillowed basalt horizon. This down‐stepping results from crustal weakening as overpressured water is released from the fractured oceanic crust during metamorphism. |
format |
Article in Journal/Newspaper |
author |
Kimura, Gaku Sakakibara, Masayuki Ofuka, Hisashi Ishizuka, Hideo Miyashita, Sumio Okamura, Makoto Melinikov, Olex A. Lushchenko, Vilera |
spellingShingle |
Kimura, Gaku Sakakibara, Masayuki Ofuka, Hisashi Ishizuka, Hideo Miyashita, Sumio Okamura, Makoto Melinikov, Olex A. Lushchenko, Vilera A deep section of accretionary complex: Susunai Complex in Sakhalin Island, Northwest Pacific Margin |
author_facet |
Kimura, Gaku Sakakibara, Masayuki Ofuka, Hisashi Ishizuka, Hideo Miyashita, Sumio Okamura, Makoto Melinikov, Olex A. Lushchenko, Vilera |
author_sort |
Kimura, Gaku |
title |
A deep section of accretionary complex: Susunai Complex in Sakhalin Island, Northwest Pacific Margin |
title_short |
A deep section of accretionary complex: Susunai Complex in Sakhalin Island, Northwest Pacific Margin |
title_full |
A deep section of accretionary complex: Susunai Complex in Sakhalin Island, Northwest Pacific Margin |
title_fullStr |
A deep section of accretionary complex: Susunai Complex in Sakhalin Island, Northwest Pacific Margin |
title_full_unstemmed |
A deep section of accretionary complex: Susunai Complex in Sakhalin Island, Northwest Pacific Margin |
title_sort |
deep section of accretionary complex: susunai complex in sakhalin island, northwest pacific margin |
publisher |
Wiley |
publishDate |
1992 |
url |
http://dx.doi.org/10.1111/j.1440-1738.1992.tb00067.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1440-1738.1992.tb00067.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1440-1738.1992.tb00067.x |
genre |
Sakhalin Alaska |
genre_facet |
Sakhalin Alaska |
op_source |
Island Arc volume 1, issue 1, page 166-175 ISSN 1038-4871 1440-1738 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1440-1738.1992.tb00067.x |
container_title |
The Island Arc |
container_volume |
1 |
container_issue |
1 |
container_start_page |
166 |
op_container_end_page |
175 |
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1810474527529893888 |