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Radiogenic Hf isotopic compositions of continental eolian dust from Asia, its variability and its implications for seawater Hf

Abstract:

The inorganic silicate fraction extracted from bulk pelagic sediments from the North Pacific Ocean is eolian dust. It monitors the composition of continental crust exposed to erosion in Asia. 176Lu/177Hf ratios of modern dust are sub-chondritic between 0.011 and 0.016 but slightly elevated with respect to immature sediments. Modern dust samples display a large range in Hf isotopic composition (IC), -4.70 < εHf < +16.45, which encompasses that'observed for the time series of DSDP cores 8...

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Publication status:
Published

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Institution:
University of Oxford
Department:
Oxford, MPLS, Earth Sciences
Journal:
EARTH AND PLANETARY SCIENCE LETTERS
Volume:
202
Issue:
2
Pages:
453-464
Publication date:
2002-09-15
DOI:
ISSN:
0012-821X
URN:
uuid:f5063d1f-58f7-4727-95c1-44ade612845b
Source identifiers:
152008
Local pid:
pubs:152008

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