Temat: shark teeth - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Shark teeth from the Lower Triassic of Spitsbergen and their histology
Autorzy:: Błażejowski, Błażej
Powiązania:: https://bibliotekanauki.pl/articles/2052057.pdf
Data publikacji:: 2004
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: Arctic
Svalbard
Lower Triassic
shark teeth (Elasmobranchii, Hybodontoidea)
histology
Źródło:: Polish Polar Research; 2004, 25, 2; 153-167
0138-0338
2081-8262
Pojawia się w:: Polish Polar Research
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Oxygen isotope analysis of shark teeth phosphates from Bartonian (Eocene) deposits in Mangyshlak peninsula, Kazakhstan
Autorzy:: Pelc, Andrzej
Hałas, Stanisław
Niedźwiedzki, Robert
Powiązania:: https://bibliotekanauki.pl/articles/2086485.pdf
Data publikacji:: 2011
Wydawca:: Polskie Towarzystwo Mineralogiczne
Tematy:: Bartonian
carbonate
Mangyshlak peninsula
phosphate
shark teeth
δ18O
δ13C
Opis:: 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.
Źródło:: Mineralogia; 2011, 42, 1; 53--61
1899-8291
1899-8526
Pojawia się w:: Mineralogia
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Oxygen isotope analysis of shark teeth phosphates from Bartonian (Eocene) deposits in Mangyshlak peninsula, Kazakhstan
Autorzy:: Pelc, A.
Hałas, S.
Niedźwiedzki, R.
Powiązania:: https://bibliotekanauki.pl/articles/2086536.pdf
Data publikacji:: 2011
Wydawca:: Polskie Towarzystwo Mineralogiczne
Tematy:: Bartonian
carbonate
Mangyshlak peninsula
phosphate
shark teeth
δ18O
δ13C
Opis:: 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.
Źródło:: Mineralogia; 2011, 42, 1; 53--61
1899-8291
1899-8526
Pojawia się w:: Mineralogia
Dostawca treści:: Biblioteka Nauki

Artykuł

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