[SpaceBar]

It's a low pass filtered complete bouger anomaly. It makes some sense if one associates red (highs) with dense, cold, descending lithospheric plate margins and associated vulcanism, and blue (lows) with hot, light, ascending thermal plumes of molten material, hot diverging lithospheric plate margins, and again the associated vulcanism. The filtering removes the relatively high frequency components that distinguish dense oceanic crust and relatively light continental crust to reveal deeper structure.

[Arkie2]

"It's a low pass filtered complete bouger anomaly"

Sounds like the kid who sat in front of me in Biology. Always put up a hand to cover the probe when going for the bouger gold!

[zoyd]

It's a low pass filtered complete bouger anomaly. It makes some sense if one associates red (highs) with dense, cold, descending lithospheric plate margins and associated vulcanism, and blue (lows) with hot, light, ascending thermal plumes of molten material, hot diverging lithospheric plate margins, and again the associated vulcanism. The filtering removes the relatively high frequency components that distinguish dense oceanic crust and relatively light continental crust to reveal deeper structure.

Yeah. What he said.

[FReepaholic]

>>...It's a low pass filtered complete bouger anomaly. It makes some sense if one associates red (highs) with dense, cold, descending lithospheric plate margins and associated vulcanism, and blue (lows) with hot, light, ascending thermal plumes of molten material, hot diverging lithospheric plate margins, and again the associated vulcanism. The filtering removes the relatively high frequency components that distinguish dense oceanic crust and relatively light continental crust to reveal deeper structure...<<

I was going to say that.

[_Jim]

    bouger anomaly

Correctly put, that should be Bouger anomaly with the 'B' capitalized ...

[_Jim]

Moreover, correctly spelled the term is Bouguer anomaly named for Pierre Bouguer, a French mathematician (1698 to 1758).