- Tytuł:
- Palaeoecology of Late Triassic conodonts: Constraints from oxygen isotopes in biogenic apatite
- Autorzy:
-
Rigo, M
Joachimski, M.M. - Powiązania:
- https://bibliotekanauki.pl/articles/21341.pdf
- Data publikacji:
- 2010
- Wydawca:
- Polska Akademia Nauk. Instytut Paleobiologii PAN
- Tematy:
-
paleoecology
paleontology
Late Triassic
conodont
oxygen isotope
biogenic apatite
Conodonta
paleotemperature
Triassic
Tethys
paleoclimate
reconstruction - Opis:
- The oxygen isotopic composition of conodont apatite derived from the Late Triassic (Carnian to lower Norian), Pignola 2 and Sasso di Castalda sections in the Lagonegro Basin (Southern Apennines, Italy) was studied in order to constrain the habitat of Late Triassic conodont animals. Oxygen isotope ratios of conodonts range from 18.5 to 20.8‰ V−SMOW, which translate to palaeotemperatures ranging from 22 to 31ºC, assuming a δ18O of Triassic subtropical sea water of −0.12‰ V−SMOW. These warm temperatures, which are well comparable to those of modern subtropical−tropical oceans, along with the body features of the conodont animal suggest that conodont δ18O values reflect surface water temperatures, that the studied conodont taxa lived in near−surface waters, and that δ18O values of Late Triassic conodonts can be used for palaeoclimatic reconstructions.
- Źródło:
-
Acta Palaeontologica Polonica; 2010, 55, 3; 471-478
0567-7920 - Pojawia się w:
- Acta Palaeontologica Polonica
- Dostawca treści:
- Biblioteka Nauki
Artykuł