EESA06H3 Lecture Notes - Lecture 3: Arabian Plate, Eurasian Plate, Seafloor Spreading
18 Apr 2016
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Lecture 3 how oceans form part 1: the african rift from kenya, ethiopia, egypt, jordan & israel. This fundamental concept: (very important in geology---aka actualism; for the french) the present day is a guide for what has been going on in the ancient past. We use past knowledge to study ancient rocks when the evidence is less preserved. Examples of past events that are not repeated: (not uniformitarianism) big bang theory. Timing of geological events: occur at a very long scale process that we can"t comprehend. Which one is the failed rit? not sure if the gulf of aden or the east african rif zone will form the failed rif. This concept: earth has been afected in the past by sudden, short-lived, violent events. Catastrophic events that we have not witnessed: super volcanoes, supernova. Example of a super volcanoes: yellow stone in new zealand. Fundamental percepion of plate tectonics: all the acivity goes on around the plate margins.
