The Visible Earths
01- Nazca,Cocos,Caribbean
02- Pre-Cambrian
03- Shields of the Earth
04- Shield Re-assembly
05- Volcanic Activity
06- Hinge Faults
07- Himalayas
08- Juan De Fuca, Gorda
09- Ring of Fire
10- Oceans Closed
11- Earthquake Waves
12- Mirror Plates
13- Interior
14- Continent Reflections
15- Earthquake Paths
16- Object in the interior
17- Magnetic Mirror
18- Full Expansion
  Mars
19- Contraction
20- Shield Volcanoes
21- Valles Marineris
22- Entry Point of Mars
  The Gas Giants
23- The Gas Giants
  Asteroids
24- Asteroids
  Mercury
25- Mercury
  Venus
26- Venus' Crust
27- Gravity Anomalies
28- Free-Air Correction
29- Rudimentary America
30- Magma Oceans
31- Full Sequence & Notes

28 - Free-Air Correction

Venus gravity anomalies

 

If we compare Free-air anomaly maps of the Earth and Venus, a structure similar to the basic 'hinge fault' pattern I have outlined in my Earth/Mars contraction model, can be seen.

There are continents, although they are not pushed together. There are no mid-ocean ridges, but there are fault lines in Aphrodite Terra. But the centres of volcanic activity appear to be around Beta Regio and Alta Regio, both volcanic rises with several types of volcanic features.

 
Alan Lambert 2010