Fuller, Michael and Touchard, Yannick (2004): On the magnetostratigraphy of the East Tasman Plateau, timing of the opening of the Tasmanian Gateway and paleoenvironmental changes

Leg/Site/Hole:
ODP 189
ODP 189 1172
Identifier:
2005-035024
georefid

Creator:
Fuller, Michael
University of Hawaii, HIGP-SOEST, Honolulu, HI, United States
author

Touchard, Yannick
University of California at Santa Barbara, United States
author

Identification:
On the magnetostratigraphy of the East Tasman Plateau, timing of the opening of the Tasmanian Gateway and paleoenvironmental changes
2004
In: Exon, Neville F. (editor), Kennett, James P. (editor), Malone, Mitchell (editor), The Cenozoic Southern Ocean; tectonics, sedimentation, and climate change between Australia and Antarctica
American Geophysical Union, Washington, DC, United States
151
63-78
ODP Leg 189 Site 1172, drilled in the East Tasman Plateau, has allowed documentation of the Tasman Gateway during pre-rifting and rifting of Australia from Antarctica in the Late Cretaceous and early Paleogene, and of subsequent paleo-oceanographic events. The new 2G 750R magnetometer on the JOIDES Resolution brought much of the weakly magnetized carbonate Neogene section into a measureable range, and the silstones provided reliable magnetostratigraphy for much of the earlier time interval. The record established overall average sedimentation rates of 10m/m.y. for the Maastrichtian to late Eocene siliciclastic sediments laid down as the South Tasman Rise rifted from Antarctica. (mod. journ. abst.)
English
Serial
Coverage:Geographic coordinates:
North:-42.0000
West:142.0000East: 150.0000
South:-49.0000

Stratigraphy; algae; alternating field demagnetization; anhysteretic remanent magnetization; Australasia; Australia; Cenozoic; chronostratigraphy; Cretaceous; cyclostratigraphy; demagnetization; diatoms; East Tasman Plateau; Eocene; isothermal remanent magnetization; K-T boundary; Leg 189; lower Paleocene; Maestrichtian; magnetic properties; magnetic susceptibility; magnetization; magnetostratigraphy; Mesozoic; microfossils; natural remanent magnetization; Neogene; Ocean Drilling Program; ODP Site 1172; Oligocene; Pacific Ocean; Paleocene; paleoenvironment; Paleogene; paleomagnetism; Plantae; plate tectonics; remanent magnetization; rifting; Senonian; South Pacific; South Tasman Rise; Southern Ocean; Southwest Pacific; stratigraphic boundary; Tasman Sea; Tasmanian Gateway; Tertiary; Upper Cretaceous; West Pacific;

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