Explain why increased seafloor spreading, resulting in higher heat flow and an increase and rapid expansion in oceanic ridges during the Cretaceous, result in worldwide transgression onto the continents
Increased seafloor spreading and higher heat flow would result in a higher amount of new oceanic crust coming from spreading ridges. New, hot oceanic crust is less dense than cooled oceanic crust. This less-dense crust would displace more ocean water onto the continents.
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