Oxygen isotope analysis of shark teeth phosphates from Bartonian (Eocene) deposits in Mangyshlak peninsula, Kazakhstan

• Autorzy: Pelc A. , Hałas S. , Niedźwiedzki R.

Identyfikatory

DOI

10.2478/v10002-011-0006-7

• Konferencja: 1st Geochemical conference on “Contemporary problems of geochemistry” : Kielce, 27–30 September 2010
• Języki publikacji: EN

Abstrakty

EN

We report the results of high-precision (±0.05‰) oxygen isotope analysis of phosphates in 6 teeth of fossil sharks from the Mangyshlak peninsula. This precision was achieved by the offline preparation of CO2 which was then analyzed on a dual-inlet and triple-collector IRMS. The teeth samples were separated from Middle- and Late Bartonian sediments cropping out in two locations, Usak and Kuilus. Seawater temperatures calculated from the δ18O data vary from 23–41oC. However, these temperatures are probably overestimated due to freshwater inflow. The data point at higher temperature in the Late Bartonian than in the Middle Bartonian and suggest differences in the depth habitats of the shark species studied.

Słowa kluczowe

EN

Bartonian; carbonate; Mangyshlak peninsula; phosphate; shark teeth; δ18O; δ13C

• Wydawca: Mineralogical Society of Poland
• Czasopismo: Mineralogia
• Rocznik: 2011
• Tom: Vol. 42, iss. 1
• Strony: 53--61
• Opis fizyczny: Bibliogr. 22 poz., rys., tab.

Twórcy

autor

Pelc A.

• Zakład Spektrometrii Mas, Uniwersytet Marii Curie-Skłodowskiej, Pl. M. Curie-Skłodowskiej 1, 20-031 Lublin, Poland

autor

Hałas S.

• Zakład Spektrometrii Mas, Uniwersytet Marii Curie-Skłodowskiej, Pl. M. Curie-Skłodowskiej 1, 20-031 Lublin, Poland

autor

Niedźwiedzki R.

• Instytut Nauk Geologicznych,Uniwersytet Wrocławski, Pl. Maksa Borna 9, 50-204 Wrocław, Poland

Bibliografia

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