massive sub-plate caverns which dont exist.
They do exist and are called Tectonic Caves.
Tectonic caves occur in many geologic settings and in great numbers, since they are produced by minor slippages in outcrops of massive sandstones, granites, basalts, and even limestone. Tectonic caves are among the most common caves, but they are rarely noticed or catalogued.
> massive sub-plate caverns which dont exist.
They do exist and are called Tectonic Caves.
> Tectonic caves occur in many geologic settings and in great numbers, since they are produced by minor slippages in outcrops of massive sandstones, granites, basalts, and even limestone. Tectonic caves are among the most common caves, but they are rarely noticed or catalogued.
> [source](https://www.britannica.com/science/cave/Other-types-of-lava-caves#ref499953)
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