Speed dating in yakima washington

04-Dec-2019 00:46

It has long been theorized that the driving forces of plate movements are deep convection currents that well up beneath the mid-ocean ridges and then circle back down beneath the ocean trenches.

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The theory of subduction has other problems as well.Scholl and Marlow (1974), who support plate tectonics, admitted to being "genuinely perplexed as to why evidence for subduction or offscraping of trench deposits is not glaringly apparent." In order to maintain their theory, plate tectonicists have had to resort to the notion that unconsolidated deep-ocean sediments can easily slide under overlying plates without being scraped off or leaving any other significant trace behind.