CompuServe Messages

>> PMFJI means!)<< I take it as Pardon Me for Jumping In. >>Your description of the igneous dike in Mexico sounds interesting. I've never seen anything like that.<< >>Something you Americans probably don't see too much of is glacial landforms, which can be pretty wild when seen from the air over much of Canada. In my various flights over western Canada (including the arctic),<< Only small areas in the Rockies. >> I've seen textbook examples of such landforms as drumlins, eskers, huge abandoned meltwater channels, and fields of stabilized barchan (ie small, crescent-shaped) sand dunes. << Sounds very interesting most of my flights have been at lower latitudes. Since you seam familiar with glaciers have you inspected the moraine often? I have a unsettled problem with the formation of gravel. Isn't the gravel very rough surfaced in the moraine? >>One of the weirdest sights is fields of "prairie mounds" which are small (maybe 20-30 feet in diameter) donut-shaped mounds supposedly caused by melting blocks of ice in the glacial gravel deposits. << I have seen those in National Geographic. Is there more of an explanation..sounds tough donut how big do they look. Another thing I got from the air is that there must have been crustal distension…. that is a cracking and spreading of the earth occurred that allowed the crustal blocks to fall over. Kamron