Sunday, October 28, 2007

From wet-based to dry-based Antarctic glaciation at 13.94 Ma

In the November issue of GSA Bulletin, Lewis et al. report on till stratigraphy constrained by Ar/Ar ages of volcanic ash from the Olympus Range in the Dry Valleys. According to the article till generated by wet-based glaciers is older than sublimation till from dry-based glaciers nearby. The ages on the ashes are used to determine the age of the transition.
Read the abstract here...
Photo: Adam Lewis

Wednesday, October 10, 2007

ANDRILL MIS in Geotimes

An article discussing the drilling technology and preliminary scientific results of the McMurdo Ice Shelf drilling of ANDRILL can be found in the printed issue of Geotimes. Currently ANDRILL is drilling a second hole in Southern McMurdo Sound. Check for science updates (from Oct. 15 approximately).


Saturday, October 6, 2007

Apply to sail on IODP Wilkes Land Margin

Application to sail can now be submitted for the IODP expedition to the Wilkes Land Margin. The application deadline is November 30, 2007. For more information see here