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30 April, 14:16

Which was not included in the support for Harry Hess's hypothesis of sea-floor spreading? earthquake patterns in subduction zones the age of the ocean floor rock granitic rock in the ocean floor magnetic strips in ocean floor rock

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  1. 30 April, 18:00
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    Granitic rock in the ocean floor was not included in the support for Harry Hess's hypothesis of sea-floor spreading.

    Explanation:

    Separation of the ocean floor which leads to the expansion of the ocean is called as sea-floor spreading. By this process there is formation of oceanic crust that are formed by volcanic activity along with the mid-oceanic ridge. Rock are basaltic and dense in nature. By this theory, it is suggested that the rock which are present near the mid-oceanic ridge are younger and the rock which are far from them are older than them. Plate tectonic movement is the cause for the sea-floor spreading.
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