Geology Globe MPEG1 скачать в хорошем качестве

Geology Globe MPEG1

PLATE MODELLING STUDY In this video the geology of the continents and oceans is draped over a spherical globe of the earth. Geology is based on "The Geological Map of the World" (CGMW&UNESCO, 1990). The oceanic geology in particular is shown as coloured stripes. These colours represent new basaltic crust which has been intruded along each of the mid-ocean-ridge spreading zones over an interval of time (millions of years). Each colour represents basaltic lava that has been intruded during each of the recognized geological periods and epochs extending from the present-day (pink stripes) back to the early Jurassic (pale blue stripes). By moving back in time it is logical to assume that this geology must be reversed and the lava returned to the mantle where it came from. In this animation the globe remains a constant size and will rotate a few times before each stripe is removed in turn from the outer edges of each plate - simulating moving back in time. The removed stripes will be shown as clear, starting from the middle pink stripe. No attempt is made to simulate subduction. This exercise is simply to show you that plate assemblage is not necessarily constrained to the Atlantic Ocean as Plate Tectonics insists. What should be obvious from this animation, in particular during removal of the first couple of stripes extending back to the Miocene and Oligocene, is that if you could imagine that the ancient earth was smaller then each of the remaining plates would neatly assemble back together along the mid-ocean-ridges - just like a spherical jigsaw. You are not told about this strange coincidence in Plate Tectonics, so why is that so? You are invited to visit www.expansiontectonics.com to see an extensive range of data modelling of the ancient earth based on this observation.