KOPRI Repository

Icelandic rift relocations: Melting models and geochemical observations

Metadata Downloads
Title
Icelandic rift relocations: Melting models and geochemical observations
Other Titles
아이슬랜드에서 지각 균열의 재구성: 용융 모델과 지화학적 관찰
Authors
Rachel L. Walters
Park, Sung Hyun
John Maclennan
Stephen M. Jones
Keywords
Geochemical Observations; Iceland; Melting Model; Rift Relocation
Issue Date
2007
Citation
Rachel L. Walters, et al. 2007. Icelandic rift relocations: Melting models and geochemical observations. 2007.12.10~.
Abstract
Rift relocations are distinctive features associated with plume-ridge interaction. The underlying processes controlling these relocations are not well understood. Observations of crustal thickness and basalt composition have been commonly used to investigate plume-ridge interaction. We present the first quantitative model of variations in melt production rates and composition during a rift relocation cycle including the growth and death of spreading centres. The two dimensional time-dependent model of passive upwelling beneath a spreading ridge is based on simple corner flow. The resulting thermal and melting structure is calculated and used to predict the variation in crustal thickness and composition through time. The results of the model are compared to geochemical and geophysical observations of the current rift relocation in southern Iceland and a palaeo-rift relocation in northern Iceland. A comparison is also made with the abandoned Phoenix Ridge, Drake Passage, Antartica. The geochemical observations are consistent with smaller degrees of melting, strongly influenced by deep mantle melting and we hope to confirm this using the model.
URI
http://repository.kopri.re.kr/handle/201206/7760
Conference Date
2007.12.10~
Files in This Item
There are no files associated with this item.
General Conditions
      ROMEO Green
    Can archive pre-print and post-print or publisher's version/PDF
      ROMEO Blue
    Can archive post-print (ie final draft post-refereeing) or publisher's version/PDF
      ROMEO Yellow
    Can archive pre-print (ie pre-refereeing)
      ROMEO White
    Archiving not formally supported

    qrcode

    Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

    Browse