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10Be in rhodochrosite nodules from Neogene sediments along the Galapagos Ridge, equatorial Pacific
Uppsala University, Disciplinary Domain of Science and Technology, Earth Sciences, Department of Earth Sciences, LUVAL.
Uppsala University, Disciplinary Domain of Science and Technology, Earth Sciences, Department of Earth Sciences, Solid Earth Geology.
Uppsala University, Disciplinary Domain of Science and Technology, För teknisk-naturvetenskapliga fakulteten gemensamma enheter, Tandem Laboratory. Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Ion Physics.
Uppsala University, Disciplinary Domain of Science and Technology, Earth Sciences, Department of Earth Sciences, Palaeobiology.
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2010 (English)In: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, ISSN 0168-583X, E-ISSN 1872-9584, Vol. 268, no 7-8, 1253-1256 p.Article in journal (Refereed) Published
Abstract [en]

Microcrystalline, calcian rhodochrosite occurs as nodules around burrows in late Neogene pelagic sediments from the Galapagos Ridge in the Guatemala Basin, eastern equatorial Pacific (DSDP Leg 68; Site 503). Be-10 isotope revealed that the rhodochrosite nodules have formed under growth conditions much faster than those reported for Fe-Mn nodules. The overall REE patterns of the nodules and host pelagic sediments indicate element derivation mainly from marine pore water. However, variations in the shale normalised Eu values suggest influx of hydrothermal fluids into mounds area at Galapagos, which is also evidenced by the similar minor and major element contents in the nodules and host sediments.

Place, publisher, year, edition, pages
2010. Vol. 268, no 7-8, 1253-1256 p.
Keyword [en]
Be-10, Rhodochrosite, AMS, Marine sediments, Galapagos
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:uu:diva-137448DOI: 10.1016/j.nimb.2009.10.146ISI: 000277462300141OAI: oai:DiVA.org:uu-137448DiVA: diva2:378522
Available from: 2010-12-15 Created: 2010-12-15 Last updated: 2017-12-11Bibliographically approved

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LUVALSolid Earth GeologyTandem LaboratoryIon PhysicsPalaeobiology
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Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
Natural Sciences

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