Carbonate deposition in the Arctic during the Paleocene Eocene Thermal Maximum (PETM) and Early Eocene Climatic Optimum (EECO)

Posamentier, H.W.; Nikishin, A.M.; Aleshina, K.F.; Rodina, E.A.; Afanasenkov, A.P.; Bachtel, S.L.; Foulger, G.R.

Авторы: Posamentier Henry W., Nikishin Anatoly M., Aleshina Ksenia F., Rodina Elizaveta A., Afanasenkov Alexander P., Bachtel Steven L., Foulger Gillian R.
Журнал: Gondwana Research
Том: 139
Год издания: 2025
Издательство: International Association for Godwana Research
Местоположение издательства: Japan
Первая страница: 136
Последняя страница: 146
DOI: 10.1016/j.gr.2024.11.011
Аннотация: Recently-acquired, high-quality seismic reflection profiles document the presence ofpossible carbonate deposits on the Mendeleev Rise in the Arctic Ocean during thePaleocene-Eocene Thermal Maximum and the Early Eocene Climatic Optimum. Thesedeposits are concentrated at the crests of bathymetric highs and consist of clusters ofbuildups comprising small patch reefs overlain by larger, coalesced platforms, followedby back-stepped higher-relief platforms. The small buildups commonly are ~100-500min diameter and 50-100m in height. The larger platforms are up to 3-7km wide and up to400m thick. Some of the larger buildups are characterized by internal horizontallylayered architecture, whereas others are characterized internally by clinoformssuggesting progradational growth. A common characteristic of these buildups is thatthey tend to achieve a common height (i.e., their tops align along the same level),typical of buildups sensitive to growth within the photic zone, whose upward growth islimited by sea level. The succession of buildup styles indicates carbonate factoriesunder the influence of accelerating relative sea-level rise, which culminated in drowningand ultimate abandonment.
Добавил в систему: Родина Елизавета Андреевна

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Carbonate deposition in the Arctic during the Paleocene Eocene Thermal Maximum (PETM) and Early Eocene Climatic Optimum (EECO)статья

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