Major Paleogene paleogeographic events

Major Paleogene paleogeographic events

Major Paleogene paleogeographic events*
age time** paleogeographic events
Middle Oligocene 33–30 mya Isolation of Antarctica completed after further subsidence of South Tasman Rise.
Early Oligocene c. 35–33 mya Tethys severely restricted in the eastern part because of uplift of the Himalayas.
Early Oligocene 37–35 mya Separation of Greenland and Svalbard and availability of higher-latitude water to North Atlantic.
Early Oligocene 38–35 mya Shallow connection between the South Pacific and Atlantic developed at Drake Passage.
Eocene-Oligocene boundary 34–35 mya Completion of the opening of Labrador Sea that had begun in the Maastrichtian.
Late Eocene c. 38 mya Iceland-Faeroe sill sinks below sea level for the first time.
Late Eocene 40–37 mya Tethys partially restricted north and east of the Indian Plate.
Late Eocene c. 40 mya Subsidence of South Tasman Rise permits shallow connection between Indian and Pacific oceans.
Early Eocene c. 53 mya Opening Norwegian-Greenland Sea develops surface water exchange with the Arctic Ocean.
Late Eocene and
Early Oligocene 37–33 mya Complete separation of Australia and Antarctica. Australia begins northward drift.
Early Paleocene 56–55 mya Separation of Greenland and Scandinavia and the formation of the Norwegian–Greenland Sea begins.
*Listed are those paleogeographic events that affected global ocean circulation and certain climatic and faunal and floral migration patterns.
**Mya = millions of years ago.
See as table:

* * *

Universalium. 2010.

Игры ⚽ Нужно сделать НИР?

Look at other dictionaries:

  • Tertiary Period — Interval of geologic time, 65–1. 8 million years ago. It constitutes the first of the two periods of the Cenozoic Era, the second being the Quaternary. The Tertiary has five subdivisions: (from oldest to youngest) the Paleocene, Eocene, Oligocene …   Universalium

  • paleogeography — paleogeographer, n. paleogeographic /pay lee oh jee euh graf ik/ or, esp. Brit., /pal ee /, paleogeographical, adj. paleogeographically, adv. /pay lee oh jee og reuh fee/ or, esp. Brit., /pal ee /, n. the science of representing the earth s… …   Universalium

  • Olympic-Wallowa Lineament — Location of the Olympic Wallowa Lineament. Is the OWL an optical illusion? The Olympic Wallowa lineament (OWL) – first reported by cartographer Erwin Raisz in 1945 [1] on a relief map of the continental United States – is a physiographic feature… …   Wikipedia

  • Geology of the North Sea — Contents 1 Tectonic structure 2 Precambrian 3 Finnmarkian, Athollian, Caledonian Orogenies …   Wikipedia

  • North Atlantic Igneous Province — The North Atlantic Igneous Province (NAIP) is a large igneous province estimated to be at least 1.3×106 km2 in area and 6.6×106 km3 in volume.[1] Geographically, the NAIP makes up all of the North Atlantic Ocean as well as the Paleocene and… …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”