Regional'nye geomorfologiceskie repery v kajnozojskoj istorii Vostocnoj Arktiki Repères géomorphologiques régionaux dans l'histoire cénozoïque de l'Arctique oriental

Auteurs :
PATYK-KARA, N. G.
ARHANGELOV, A. A.
PLAHT, I. R.

Description :
The relief development of the East Arctic shelf during the Cenozoic directly resulted from the Arctic Ocean formation and can be subdivided into four stages| second half of Paleocene to Early Oligocene| Middle Oligocene to Early Miocene| Middle-Late Miocene| Pliocene-present day. Each stage duration was about 12 to 15 mln years with the exception of the last one which has not yet been completed. In each stage a marine transgression reflects changes in the structural plan which include transformation and growth of the area of the subsidence and associated uplift to regional barriers between the basins. Other events : ice cover formation in the polar basin| seasonal freezing of the ground| permafrost developed since the Middle Pliocene.


Type de document :
Article de périodique

Source :
Geomorfologiâ (Moskva), issn : 0435-4281, 1989, n°. 4, p. 96-104, Références bibliographiques : 17 réf.

Date :
1989

Editeur :
Pays édition : Russie, Federation de, Moskva, Nauka