| Strong Regularities in World Wide Web Surfing (2007) | |||||||||||||||
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| 26. This CMB response time is accelerated by a factor of 2, relative to a model without core heating. 27. The correspondence of the mantle response time and the time period for reliable reconstructions is not coincidental. Reconstructions are largely dependent on the magnetic isochrons of sea-floor spreading, which is limited to the characteristic maximum age for oce-anic lithosphere. Simple boundary-layer convection theory (22) predicts that this characteristic boundarylayer age should be similar to the vertical transit time for convection. Based on the prediction that advection velocities scale roughly with the natural logarithm of the viscosity contrast (18), the mantle response time should be accurate within a factor of 2. | |||||||||||||||
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