Figure F12. Histograms of heat flow data from young seafloor on the eastern flank of the Juan de Fuca Ridge. A. Complete data set of ~1700 values. B. Filtered data set of 300 values from 3.4–3.6 Ma seafloor, avoiding areas of basement exposure or significant buried relief, illustrating characteristic "background" heat flow used as a reference for subsequent conductive modeling. Mean of the filtered values is 181 ± 16 mW/m2.
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