How would tectonics behave on a two continent planet?

I am working on constructing a world which is basically (from the northern pole to the southern pole):

• smallish frozen over ocean
• huge land mass encompassing the northern hemisphere
• tremendous ocean forming an effective 'belt' dividing the planet in two halves
• slightly smaller land mass than the northern hemisphere (about 2/3 to 3/4 of it), encompassing the southern hemisphere

The planet itself will have about 1.1 times the size of earth and slightly more landmass (about 35% landmass to 65% waters), it will have 3 moons/satellites orbiting it:

Tectonic movement of plates moves from the equator to the poles, the north continent consists of roughly 3 or 4 big plates, the southern continent of about twice that amount.

The only invented material on the whole world will be a sort of crystal/compound which produces a gas when in contact with sulfuric hot water. Said gas will provide a high lifting capacity about roughly 4 to 5 times that of helium or hydrogen.

• biggest moon, about the size of earth's moon (maybe a trifle bigger) will orbit the planet along its equator
• the two smaller moons will orbit the planet at about a 60° and 70° degree inclination relative to the plane of the biggest moon (both having a mass of roughly one third of the big moon)

I'm neither a geologist nor biologist nor anything fancy myself sadly. So my questions are (This question originally involved a set of 5 questions, all but question 4 were removed to be asked in other questions; see related questions):

4. Is it a fair assumption for me to have most big mountain ranges positioned roughly parallel to the equator?

posted over 9 years ago

dot_Sp0T‭

26 reputation 46 2 3 0