|
ИСТИНА |
Войти в систему Регистрация |
ИСТИНА ФИЦ ПХФ и МХ РАН |
||
Early Cretaceous seaways of the Russian Platform and the problem of Boreal / Tethyan correlationстатья
- Автор: Baraboshkin E.J.
- Сборник: Tethyan / Boreal Cretaceous correlation. Mediterranean and Boreal Cretaceous paleobiogeographic areas in Central and Eastern Europe, VEDA
- Год издания: 2002
- Место издания: VEDA Publ.House of Slovak Acad. Sci Bratislava
- Первая страница: 39
- Последняя страница: 78
- Аннотация: The Russian Platform is one of the candidate regions, where Boreal and Tethyan stratigraphic divisions could be correlated. Ammonite distribution in the Boreal Realm, Russian Platform and adjacent area indicates close connections between opening and closure of sea-ways, sea-level changes, and climatic variations resulting in changeable reliability of correlation between these areas. Two stages in the Russian Basin development were recognized. Boreal conditions prevailed during the Berriasian-Barremian interval here being interrupted only by several Tethyan invasions. Strong Tethyan influence in this region was recorded during the Aptian and Albian. Ten Boreal and four Tethyan invasion events were recognized in the whole Lower Cretaceous sedimentary record. The majority of fauna] invasions were connected with sea-level rise connected with climatic changes and some of them could be explained by the cool/warm water current influence. During the Barremian-Aptian and the latest Albian, existence of consistent dry land barriers between Eurasia and North America is supposed.
- Добавил в систему: Барабошкин Евгений Юрьевич