The world I designed, while habitable and capable of hosting carbon based life is characterized by a considerable volcanic and seismic activity caused by the tidal heating of the gas giant it orbits.
Among the features that I would like the world to have there would be a system of natural caves spanning some areas of the planet, possibly big enough to contain their own secluded ecosystem similar to the Hang Son Doong caves in Vietnam but much bigger, numerous and extensive, with my aim being that they'd be capable of hosting even small settlements or even entire secluded civilizations inside them.
Would a world with the conditions that I described allow for such cave systems to exist? And if yes, would it facilitate or impede their formation?
For some additional information:
- World mass: 0.7 earths
- World Desnity: 1 Earth
- Primary planet mass: 3 jupiters
- Semi axis major: 2 moon-earth distances
- Eccentricity: between 0.01 and 0.001
- Land to sea ration: 60% water 40% land
- Four major continents, a handful of minor ones and numerous islands
- The climate would be generally tropical, meaning that erosion would be considerable