Anne Osbourn

History of the Cretaceous Osbourn spreading center

[1] The Osbourn Trough is a fossil spreading center that rifted apart the Manihiki and Hikurangi Plateaus during Cretaceous time. Previous models of the Osbourn spreading center are based on data collected near the trough axis, and therefore only constrain the history of the Osbourn spreading center during the last few Ma of spreading. Our data set includes multibeam data collected northward to...

Morphology and origin of the Osbourn Trough

The Osbourn Trough is a 900 km long, east-west rending gravity low, visible in satellite altimetry data, which intersects the Tonga Trench at 25ø30'S. A recent survey collected gravity, magnetic, echo sounder, and swath bathymetry data on three adjacent, north-south trending ship tracks centered on the trough. The linear gravity low is 20-30 regal less than the regional value and is accompanied...

To Anne

Anne O’Tate

Anne Magurran

The overwhelming appeal of the concept of evolution through natural selection has focused the minds of generations of biologists on trends, and the similarities and differences between organisms that is grist to the mill of taxonomists. “To paraphrase T.S. Eliot, ‘Where is the imagination that has been lost in knowledge and where is the knowledge that has been lost in information?’ This book is...