Hi Clinton, It might not be exactly what you're looking for, but I heartily suggest investigating the very well done paleogeographical materials that Prof. Ron Blakely (Univ. AZ) has put together; which includes plug-ins for NASA World Wind
http://jan.ucc.nau.edu/~rcb7/ http://jan.ucc.nau.edu/~rcb7/regionaltext.html http://jan.ucc.nau.edu/~rcb7/nam.html http://worldwindcentral.com/wiki/Add-on:Paleomaps http://forum.worldwindcentral.com/showthread.php?t=6495 "The globes presented in this series show how Earth may have appeared over the last 600 million years (Ma). The global views were prepared from rectangular projections drawn at a resolution of 3000x1500 pixels for each of the 26 time slices (small files of the rectangular maps are also included). Topography was "cloned" from digital elevation maps of modern Earth from the USGS. Colors were adjusted to portray climate and vegetation for the given time and location. The modern Earth was also drawn in this manner using a color pallet derived from satellite images created by ARC Science of Loveland, Colorado." Includes Precambrian to the present Also see: http://www.google.com/Top/Science/Earth_Sciences/Paleogeography_and_Paleoclimatology/ visually stunning and very informative. John Mickelson Geospatial and Ecological Services 501 Stage Rd. Monroe, NY 10950-3217 (845) 893-4110 [email protected] --- On Sun, 11/1/09, Clinton Jenkins <[email protected]> wrote: From: Clinton Jenkins <[email protected]> Subject: [ECOLOG-L] looking for global map of time since last glaciation To: [email protected] Date: Sunday, November 1, 2009, 12:48 PM Does anyone know where I might find a global map, preferably in GIS format, showing the length of time since last glaciation? Ideally this would be a continuous measure of time, illustrating the retreat of the last glaciation, but a coarsely categorized map would be useful also. Thanks. Clinton
