Subduction initiation and ophiolite crust: new insights from IODP drilling

Mark K. Reagan; Julian A. Pearce; Katerina Petronotis; Renat R. Almeev; Aaron J. Avery; Claire Carvallo; Timothy Chapman; Gail L. Christeson; Eric C. Ferré; Marguerite Godard; Daniel E. Heaton; Maria Kirchenbaur; Walter Kurz; Steffen Kutterolf; Hongyan Li; Yibing Li; Katsuyoshi Michibayashi; Sally Morgan; Wendy R. Nelson; Julie Prytulak; Marie Python; Alastair H.F. Robertson; Jeffrey G. Ryan; William W. Sager; Tetsuya Sakuyama; John W. Shervais; Kenji Shimizu; Scott A. Whattam

doi:10.1080/00206814.2016.1276482

Subduction initiation and ophiolite crust: new insights from IODP drilling

Mark K. Reagan, Julian A. Pearce, Katerina Petronotis, Renat R. Almeev, Aaron J. Avery, Claire Carvallo, Timothy Chapman, Gail L. Christeson, Eric C. Ferré, Marguerite Godard, Daniel E. Heaton, Maria Kirchenbaur, Walter Kurz, Steffen Kutterolf, Hongyan Li, Yibing Li, Katsuyoshi Michibayashi, Sally Morgan, Wendy R. Nelson, Julie PrytulakMarie Python, Alastair H.F. Robertson, Jeffrey G. Ryan, William W. Sager, Tetsuya Sakuyama, John W. Shervais, Kenji Shimizu, Scott A. Whattam

Department of Earth and Environmental Sciences

Research output: Contribution to journal › Article

67 Citations (Scopus)

Abstract

International Ocean Discovery Program (IODP) Expedition 352 recovered a high-fidelity record of volcanism related to subduction initiation in the Bonin fore-arc. Two sites (U1440 and U1441) located in deep water nearer to the trench recovered basalts and related rocks; two sites (U1439 and U1442) located in shallower water further from the trench recovered boninites and related rocks. Drilling in both areas ended in dolerites inferred to be sheeted intrusive rocks. The basalts apparently erupted immediately after subduction initiation and have compositions similar to those of the most depleted basalts generated by rapid sea-floor spreading at mid-ocean ridges, with little or no slab input. Subsequent melting to generate boninites involved more depleted mantle and hotter and deeper subducted components as subduction progressed and volcanism migrated away from the trench. This volcanic sequence is akin to that recorded by many ophiolites, supporting a direct link between subduction initiation, fore-arc spreading, and ophiolite genesis.

Original language	English
Pages (from-to)	1439-1450
Number of pages	12
Journal	International Geology Review
Volume	59
Issue number	11
DOIs	https://doi.org/10.1080/00206814.2016.1276482
Publication status	Published - 2017 Aug 18

Keywords

Expedition 352
International Ocean Discovery Program
Izu
Philippine plate
Site U1439
Site U1440
Site U1441
Site U1442
basalt
bonin
boninite
drilling
ophiolite
subduction initiation

ASJC Scopus subject areas

Geology

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10.1080/00206814.2016.1276482

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Reagan, M. K., Pearce, J. A., Petronotis, K., Almeev, R. R., Avery, A. J., Carvallo, C., Chapman, T., Christeson, G. L., Ferré, E. C., Godard, M., Heaton, D. E., Kirchenbaur, M., Kurz, W., Kutterolf, S., Li, H., Li, Y., Michibayashi, K., Morgan, S., Nelson, W. R., ... Whattam, S. A. (2017). Subduction initiation and ophiolite crust: new insights from IODP drilling. International Geology Review, 59(11), 1439-1450. https://doi.org/10.1080/00206814.2016.1276482

Subduction initiation and ophiolite crust : new insights from IODP drilling. / Reagan, Mark K.; Pearce, Julian A.; Petronotis, Katerina; Almeev, Renat R.; Avery, Aaron J.; Carvallo, Claire; Chapman, Timothy; Christeson, Gail L.; Ferré, Eric C.; Godard, Marguerite; Heaton, Daniel E.; Kirchenbaur, Maria; Kurz, Walter; Kutterolf, Steffen; Li, Hongyan; Li, Yibing; Michibayashi, Katsuyoshi; Morgan, Sally; Nelson, Wendy R.; Prytulak, Julie; Python, Marie; Robertson, Alastair H.F.; Ryan, Jeffrey G.; Sager, William W.; Sakuyama, Tetsuya; Shervais, John W.; Shimizu, Kenji; Whattam, Scott A.

In: International Geology Review, Vol. 59, No. 11, 18.08.2017, p. 1439-1450.

Research output: Contribution to journal › Article

Reagan, MK, Pearce, JA, Petronotis, K, Almeev, RR, Avery, AJ, Carvallo, C, Chapman, T, Christeson, GL, Ferré, EC, Godard, M, Heaton, DE, Kirchenbaur, M, Kurz, W, Kutterolf, S, Li, H, Li, Y, Michibayashi, K, Morgan, S, Nelson, WR, Prytulak, J, Python, M, Robertson, AHF, Ryan, JG, Sager, WW, Sakuyama, T, Shervais, JW, Shimizu, K & Whattam, SA 2017, 'Subduction initiation and ophiolite crust: new insights from IODP drilling', International Geology Review, vol. 59, no. 11, pp. 1439-1450. https://doi.org/10.1080/00206814.2016.1276482

Reagan, Mark K. ; Pearce, Julian A. ; Petronotis, Katerina ; Almeev, Renat R. ; Avery, Aaron J. ; Carvallo, Claire ; Chapman, Timothy ; Christeson, Gail L. ; Ferré, Eric C. ; Godard, Marguerite ; Heaton, Daniel E. ; Kirchenbaur, Maria ; Kurz, Walter ; Kutterolf, Steffen ; Li, Hongyan ; Li, Yibing ; Michibayashi, Katsuyoshi ; Morgan, Sally ; Nelson, Wendy R. ; Prytulak, Julie ; Python, Marie ; Robertson, Alastair H.F. ; Ryan, Jeffrey G. ; Sager, William W. ; Sakuyama, Tetsuya ; Shervais, John W. ; Shimizu, Kenji ; Whattam, Scott A. / Subduction initiation and ophiolite crust : new insights from IODP drilling. In: International Geology Review. 2017 ; Vol. 59, No. 11. pp. 1439-1450.

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abstract = "International Ocean Discovery Program (IODP) Expedition 352 recovered a high-fidelity record of volcanism related to subduction initiation in the Bonin fore-arc. Two sites (U1440 and U1441) located in deep water nearer to the trench recovered basalts and related rocks; two sites (U1439 and U1442) located in shallower water further from the trench recovered boninites and related rocks. Drilling in both areas ended in dolerites inferred to be sheeted intrusive rocks. The basalts apparently erupted immediately after subduction initiation and have compositions similar to those of the most depleted basalts generated by rapid sea-floor spreading at mid-ocean ridges, with little or no slab input. Subsequent melting to generate boninites involved more depleted mantle and hotter and deeper subducted components as subduction progressed and volcanism migrated away from the trench. This volcanic sequence is akin to that recorded by many ophiolites, supporting a direct link between subduction initiation, fore-arc spreading, and ophiolite genesis.",

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