IDEAS home Printed from https://ideas.repec.org/a/nat/natcom/v13y2022i1d10.1038_s41467-022-28637-6.html
   My bibliography  Save this article

Boron isotopes in boninites document rapid changes in slab inputs during subduction initiation

Author

Listed:
  • Hong-Yan Li

    (Chinese Academy of Sciences
    CAS Center for Excellence in Deep Earth Science
    Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou))

  • Xiang Li

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Jeffrey G. Ryan

    (University of South Florida)

  • Chao Zhang

    (Northwest University)

  • Yi-Gang Xu

    (Chinese Academy of Sciences
    CAS Center for Excellence in Deep Earth Science
    Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou))

Abstract

How subduction-related magmatism starts at convergent plate margins is still poorly understood. Here we show that boron isotope variations in early-formed boninites from the Izu-Bonin arc, combined with radiogenic isotopes and elemental ratios document rapid (~0.5 to 1 Myr) changes in the sources and makeup of slab inputs as subduction begins. Heterogeneous hornblende-granulite facies melts from ocean crust gabbros ± basalts fluxed early melting to generate low silica boninites. Hydrous fluids from slab sediments and basalts later fluxed the low silica boninites mantle source to produce high silica boninites. Our results suggest that initially the uppermost parts of the slab were accreted near the nascent trench, perhaps related to early low-angle subduction. The rapid changes in slab inputs recorded in the boninites entail a steepening subduction angle and cooling of the plate interface, allowing for subduction of slab sediment and basalt, and generating hydrous fluids at lower slab temperatures.

Suggested Citation

  • Hong-Yan Li & Xiang Li & Jeffrey G. Ryan & Chao Zhang & Yi-Gang Xu, 2022. "Boron isotopes in boninites document rapid changes in slab inputs during subduction initiation," Nature Communications, Nature, vol. 13(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:13:y:2022:i:1:d:10.1038_s41467-022-28637-6
    DOI: 10.1038/s41467-022-28637-6
    as

    Download full text from publisher

    File URL: https://www.nature.com/articles/s41467-022-28637-6
    File Function: Abstract
    Download Restriction: no
    File URL: https://libkey.io/10.1038/s41467-022-28637-6?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    References listed on IDEAS

    as
    1. Hong-Yan Li & Rui-Peng Zhao & Jie Li & Yoshihiko Tamura & Christopher Spencer & Robert J. Stern & Jeffrey G. Ryan & Yi-Gang Xu, 2021. "Molybdenum isotopes unmask slab dehydration and melting beneath the Mariana arc," Nature Communications, Nature, vol. 12(1), pages 1-10, December.
    2. George F. Cooper & Colin G. Macpherson & Jon D. Blundy & Benjamin Maunder & Robert W. Allen & Saskia Goes & Jenny S Collier & Lidong Bie & Nicholas Harmon & Stephen P. Hicks & Alexander A. Iveson & Ju, 2020. "Variable water input controls evolution of the Lesser Antilles volcanic arc," Nature, Nature, vol. 582(7813), pages 525-529, June.
    3. Xin Zhou & Ikuko Wada, 2021. "Differentiating induced versus spontaneous subduction initiation using thermomechanical models and metamorphic soles," Nature Communications, Nature, vol. 12(1), pages 1-10, December.
    4. Ronit Kessel & Max W. Schmidt & Peter Ulmer & Thomas Pettke, 2005. "Trace element signature of subduction-zone fluids, melts and supercritical liquids at 120–180 km depth," Nature, Nature, vol. 437(7059), pages 724-727, September.
    5. George F. Cooper & Colin G. Macpherson & Jon D. Blundy & Benjamin Maunder & Robert W. Allen & Saskia Goes & Jenny S. Collier & Lidong Bie & Nicholas Harmon & Stephen P. Hicks & Alexander A. Iveson & J, 2020. "Author Correction: Variable water input controls evolution of the Lesser Antilles volcanic arc," Nature, Nature, vol. 584(7822), pages 36-36, August.
    6. Chen Cai & Douglas A. Wiens & Weisen Shen & Melody Eimer, 2018. "Water input into the Mariana subduction zone estimated from ocean-bottom seismic data," Nature, Nature, vol. 563(7731), pages 389-392, November.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Hong-Yan Li & Rui-Peng Zhao & Jie Li & Yoshihiko Tamura & Christopher Spencer & Robert J. Stern & Jeffrey G. Ryan & Yi-Gang Xu, 2021. "Molybdenum isotopes unmask slab dehydration and melting beneath the Mariana arc," Nature Communications, Nature, vol. 12(1), pages 1-10, December.
    2. Jinyu Tian & Zhitu Ma & Jian Lin & Min Xu & Xun Yu & Ba Manh Le & Xubo Zhang & Fan Zhang & Laiyin Guo, 2023. "Mantle heterogeneity caused by trapped water in the Southwest Basin of the South China Sea," Nature Communications, Nature, vol. 14(1), pages 1-8, December.
    3. Pitcher, Bradley W & Kent, Adam J.R., 2018. "Statistics and segmentation: Using Big Data to assess Cascades Arc compositional variability," Earth Arxiv 6xq3w, Center for Open Science.
    4. Yunchao Shu & Sune G. Nielsen & Veronique Roux & Gerhard Wörner & Jerzy Blusztajn & Maureen Auro, 2022. "Sources of dehydration fluids underneath the Kamchatka arc," Nature Communications, Nature, vol. 13(1), pages 1-14, December.

    More about this item

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:nat:natcom:v:13:y:2022:i:1:d:10.1038_s41467-022-28637-6. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Sonal Shukla or Springer Nature Abstracting and Indexing (email available below). General contact details of provider: http://www.nature.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.