This message is from C. Cagle.------------------Johnnie ------------------------------------------------------------ >Date: Fri, 5 Sep 1997 17:05:09 -0700 >From: \""C. Cagle"" <"<[log in to unmask]> >Subject: Cartography problem - Earth Expansion There is a school of thought in geology that the earth has undergone gross expansion from ancient times. I would like to illustrate this by assuming an ancient smaller earth whose total surface area consists of the present continental land masses (including Greenland, Madagascar, etc.) Through a process of mass creation in the core of the planet (which is related to dipole reversals) lithospheric tension appears and the solid lithosphere splits into the present continental shapes. Seafloor expansion drives these landmasses radially apart to their present position. Sea floor chronology is interpreted by some to absolutely fit this model which eliminates the entire idea of subduction. For a recent offering on this subject go to: http://www.kwluckert.com/ I'm interested in finding out how to make a 3d computer map which has only the present continental surface as its total surface and then showing successive stages of expansion. Any idea about how to do this: I'm presently using Extreme 3d on a power mac which allows me to map 512x256 (or anything that retains that ratio) onto spherical surfaces. Thanks for any help. Best Regards, C. Cagle SingTech