Evidence for subduction at 3.8 Ga: Geochemistry of arc-like metabasalts from the southern edge of the Isua Supracrustal Belt

We present new major and trace element data for rare examples of preserved pillow basalts from a locality of little studied > 3800 Ma rocks at the southwestern edge of the Isua Supracrustal Belt (ISB), West Greenland. The 20 samples have 47.3-59.0 wt.%

Bibliographic Details
Published in:Chemical Geology
Main Authors: Jenner, Frances, Bennett, Victoria, Nutman, Allen, Friend, Clark, Norman, Marc, Yaxley, Gregory
Format: Article in Journal/Newspaper
Language:unknown
Published: Elsevier
Subjects:
Keywords: Archean
chemical composition
igneous geochemistry
magma chemistry
mantle source
metabasalt
subduction
Arctic
Greenland
Isua Greenstone Belt Eoarchean
Island arc basalts
Isua Supracrustal Belt
Online Access:http://hdl.handle.net/1885/38488
https://doi.org/10.1016/j.chemgeo.2008.09.016
https://openresearch-repository.anu.edu.au/bitstream/1885/38488/5/Jenner_et_al_RSES_Evidence_for_subduction.pdf.jpg
https://openresearch-repository.anu.edu.au/bitstream/1885/38488/7/01_Jenner_Evidence_for_subduction_at_3.8_2009.pdf.jpg
Description
Summary:We present new major and trace element data for rare examples of preserved pillow basalts from a locality of little studied > 3800 Ma rocks at the southwestern edge of the Isua Supracrustal Belt (ISB), West Greenland. The 20 samples have 47.3-59.0 wt.%

Similar Items