globalchange  > 影响、适应和脆弱性
DOI: 10.1007/s00531-014-1038-1
论文题名:
Element signatures of subduction-zone fluids. An experimental study of the element partitioning (Dfluid/rock) of natural partly altered igneous rocks from the ODP drilling site 1,256
作者: Mutter A.; Holzheid A.; Klügel A.; Wilke M.; Berndt J.; Garbe-Schönberg D.
刊名: International Journal of Earth Sciences
出版年: 2014
卷: 103, 期:7
起始页码: 1917
结束页码: 1927
语种: 英语
英文关键词: Cocos plate ; Leaching experiments ; Partition coefficients ; Subduction zones ; Trace elements
Scopus关键词: Cocos plate ; fluid-structure interaction ; igneous rock ; leaching ; Ocean Drilling Program ; partition coefficient ; partitioning ; subduction zone ; trace element ; Central America
英文摘要: The trace element signatures of fluids were investigated by leaching experiments on natural samples of partly altered mafic igneous rocks recovered from the drilling site 1,256 of ODP Leg 206 on the Cocos plate (Central America). Experiments with ultrapure water were performed at 400 °C/0.4 GPa and 500 °C/0.7 GPa. Both fluids and residual solids were examined to obtain the partition coefficients (Dfluid/rock) of various trace elements. Element partition coefficients (Dfluid/rock) obtained at 500 °C/0.7 GPa are significantly lower compared to results obtained at 400 °C/0.4 GPa, which is in contrast to observations at higher pressures (2.2–6 GPa) and temperatures between 700 and 1,400 °C (Kessel et al. in Earth Planet Sci Lett 237: 873–892, 2005a; Spandler et al. in Chem Geol 239: 228–249, 2007). This finding may indicate a considerable pressure effect on the leaching processes and strongly divergent fluid–rock interactions in the upper part of a subduction zone at 0.4–0.7 GPa compared to deeper subduction areas with higher pressures. Furthermore, this may be interpreted as one of the earliest fractionation processes during the subduction of crustal material. © 2014, Springer-Verlag Berlin Heidelberg.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84908571123&doi=10.1007%2fs00531-014-1038-1&partnerID=40&md5=43182aa893da50f7e9796d108c412fe9
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/70339
Appears in Collections:影响、适应和脆弱性
气候减缓与适应

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作者单位: Institut für Geowissenschaften, Christian-Albrechts University of Kiel, Ludewig-Meyn Str. 10, Kiel, Germany; Institut für Geowissenschaften, University of Bremen, Klagenfurter Straße, Bremen, Germany; GFZ German Research Centre for Geosciences, Telegrafenberg, D 328, Potsdam, Germany; Institut für Mineralogie, Westfälische Wilhelms University of Münster, Corrensstraße 24, Münster, Germany; Department of Earth Sciences, University of Cambridge, Downing Street, Cambridge, United Kingdom

Recommended Citation:
Mutter A.,Holzheid A.,Klügel A.,et al. Element signatures of subduction-zone fluids. An experimental study of the element partitioning (Dfluid/rock) of natural partly altered igneous rocks from the ODP drilling site 1,256[J]. International Journal of Earth Sciences,2014-01-01,103(7)
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