Why it is expected that this miniscule heat speculated as being distributed across
the entire ocean volume, would suddenly give up it's heat, thereby reappearing in the global surface record.
The entire ocean volume circulates through hydrothermal vents about every 40 million years.
Not exact matches
If there's no mixing lower (effective diffusivity = 0) that extra energy only has to warm up a
volume of water 1/10 as large as the
entire ocean.
The only possible explanation for why the average temperature of the
ocean is 4C is because that is the average surface temperature of the earth taken over a period of time long enough for convection and conduction to equilibrate the
entire volume.