Szczegóły publikacji
Opis bibliograficzny
Foraminiferal stratigraphy and paleoenvironments of a high latitude marginal marine basin – a Late Cretaceous record from IODP Site U1512 (Great Australian Bight) / Erik Wolfgring, Michael A. Kaminski, Anna WAŚKOWSKA, Carmine C. Wainman, Maria Rose Petrizzo, Eun Young Lee, Trine Edvardsen, Se Gong // Palaeogeography Palaeoclimatology Palaeoecology ; ISSN 0031-0182. — 2021 — vol. 580 art. no. 110604, s. 1–18. — Bibliogr. s. 15–18, Abstr. — Publikacja dostępna online od: 2021-08-05
Autorzy (8)
- Wolfgring Erik
- Kaminski Michael A.
- AGHWaśkowska Anna
- Wainman Carmine C.
- Petrizzo Maria Rose
- Lee Eun Young
- Edvardsen Trine
- Gong Se
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 138366 |
|---|---|
| Data dodania do BaDAP | 2021-12-21 |
| DOI | 10.1016/j.palaeo.2021.110604 |
| Rok publikacji | 2021 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Palaeogeography Palaeoclimatology Palaeoecology |
Abstract
Organic geochemical data (notably steranes/hopanes ratios), foraminiferal assemblages, together with an increasing abundance of radiolaria reveal a complex and constantly changing marginal marine paleoenvironment. The prevailing regime (oxic or dysoxic, marine, or terrestrially influenced) was strongly influenced by paleobathymetry, unstable oceanic circulation and terrestrial runoff. These factors caused the paleoenvironment to change five times over 10 million years, each lasting <2 Ma. A major increase in the abundance of radiolaria (>50%) after the mid-Turonian followed a peak in the abundance of tubular epifaunal foraminifera during the lower to mid-Turonian. This is possibly related to an increase in bathymetry, that could correspond to a preceding sea level lowstand, and associated changes in ocean chemistry, such as changes in organic flux or salinity. Foraminiferal and geochemical evidence from Site U1512 allow for far-reaching interpretations of the paleoenvironments of the Great Australian Bight during the Late Cretaceous.
