Lissenberg, Cornelis Johan ORCID: https://orcid.org/0000-0001-7774-2297, Rioux, Matthew, Shimizu, Nobumichi, Bowring, Samuel A. and Mével, Catherine 2009. Zircon dating of oceanic crustal accretion. Science 323 (5917) , pp. 1048-1050. 10.1126/science.1167330 |
Official URL: http://dx.doi.org/10.1126/science.1167330
Abstract
Most of Earth's present-day crust formed at mid-ocean ridges. High-precision uranium-lead dating of zircons in gabbros from the Vema Fracture Zone on the Mid-Atlantic Ridge reveals that the crust there grew in a highly regular pattern characterized by shallow melt delivery. Combined with results from previous dating studies, this finding suggests that two distinct modes of crustal accretion occur along slow-spreading ridges. Individual samples record a zircon date range of 90,000 to 235,000 years, which is interpreted to reflect the time scale of zircon crystallization in oceanic plutonic rocks.
Item Type: | Article |
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Date Type: | Publication |
Status: | Published |
Schools: | Earth and Environmental Sciences |
Subjects: | G Geography. Anthropology. Recreation > GC Oceanography Q Science > QE Geology |
Publisher: | American Association for the Advancement of Science |
ISSN: | 0036-8075 |
Last Modified: | 18 Oct 2022 12:28 |
URI: | https://orca.cardiff.ac.uk/id/eprint/9907 |
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