Tytuł pozycji:
230TH/U dating of massive sulfides from the logatchev and rainbow hydrothermal fields (Mid-Atlantic Ridge)
- Tytuł:
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230TH/U dating of massive sulfides from the logatchev and rainbow hydrothermal fields (Mid-Atlantic Ridge)
- Autorzy:
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Kuznetsov, V.
Cherkashev, G.
Lein, A.
Shilov, V.
Maksimov, F.
Arslanov, K.
Stepanova, T.
Baranova, N.
Chernov, S.
Tarasenko, D.
- Data publikacji:
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2006
- Słowa kluczowe:
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230Th/U dating
hydrothermal activity
oceanic massive sulfides
geochronology
- Język:
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angielski
- Dostawca treści:
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BazTech
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Przejdź do źródła Link otwiera się w nowym oknie
A radiochemical study was carried out on massive sulfides from three hydrothermal fields in the Mid-Atlantic Ridge. The main objective was to check whether 230Th/U dating yields reliable results. The absolute 230Th/U ages of massive sulfide samples of three hydrothermal fields at the Mid Atlantic Ridge were determined 58.2±4.2 ka and 16.8±1.0 ka for the "Logatchev-1" site, 3.9±0.4 ka for the "Logatchev-2" site and 23.0±1.5 ka, 3.9±0.6 ka and 2.2±0.3 ka for the "Rainbow" site. The dates correspond to the activation periods of hydrothermal ore formation systems.
