Abstract Details
(2020) Fish Debris and Rare-Earth Deposition Event in the Latest Eocene Revealed by Osmium Isotope Stratigraphy
Ohta J, Yasukawa K, Nozaki T, Takaya Y, Mimura K, Fujinaga K, Nakamura K, Usui Y, Kimura J-I, Chang Q & Kato Y
https://doi.org/10.46427/gold2020.1981
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08m: Room 3, Tuesday 23rd June 22:57 - 23:00
Junichiro Ohta
View all 2 abstracts at Goldschmidt2020
Kazutaka Yasukawa View all 3 abstracts at Goldschmidt2020
Tatsuo Nozaki View all 4 abstracts at Goldschmidt2020
Yutaro Takaya View all 2 abstracts at Goldschmidt2020
Kazuhide Mimura View abstracts at 6 conferences in series
Koichiro Fujinaga View all 2 abstracts at Goldschmidt2020
Kentaro Nakamura View all 3 abstracts at Goldschmidt2020
Yoichi Usui View abstracts at 2 conferences in series
Jun-Ichi Kimura View all 3 abstracts at Goldschmidt2020 View abstracts at 17 conferences in series
Qing Chang View all 3 abstracts at Goldschmidt2020
Yasuhiro Kato View all 5 abstracts at Goldschmidt2020
Kazutaka Yasukawa View all 3 abstracts at Goldschmidt2020
Tatsuo Nozaki View all 4 abstracts at Goldschmidt2020
Yutaro Takaya View all 2 abstracts at Goldschmidt2020
Kazuhide Mimura View abstracts at 6 conferences in series
Koichiro Fujinaga View all 2 abstracts at Goldschmidt2020
Kentaro Nakamura View all 3 abstracts at Goldschmidt2020
Yoichi Usui View abstracts at 2 conferences in series
Jun-Ichi Kimura View all 3 abstracts at Goldschmidt2020 View abstracts at 17 conferences in series
Qing Chang View all 3 abstracts at Goldschmidt2020
Yasuhiro Kato View all 5 abstracts at Goldschmidt2020
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Submitted by Daniel Gregory on Friday 19th June 05:38
Thank you for the interesting talk. I have a somewhat dumb question but how much more REEs are in the fish debris at these sites compared to normal fish bones etc.? and what process enriches them?
Thank you for your question. In general, the REEs concentration in fish debris itself varies from several thousands to 20,000 ppm in marine sediments. Its not true that fish debris at these sites were especially enriched in REEs, so the REEs content in bulk sediment was controlled by how much the fish debris was contained in the sediment rather than how much REEs were in the fish debris.
Thank you for the interesting talk. I have a somewhat dumb question but how much more REEs are in the fish debris at these sites compared to normal fish bones etc.? and what process enriches them?
Thank you for your question. In general, the REEs concentration in fish debris itself varies from several thousands to 20,000 ppm in marine sediments. Its not true that fish debris at these sites were especially enriched in REEs, so the REEs content in bulk sediment was controlled by how much the fish debris was contained in the sediment rather than how much REEs were in the fish debris.
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