Plate tectonics and the presence of water have nothing to do with each other. And caves and plate tectonics have nothing to do with each other either. Caves are generally created by underground waterflow - some rock types have more of a tendency to be "dissolved" by water because of their chemical makeup. When water passes through and starts to dissolve the rock, it leaves a void behind...and with more water flow there's more dissolving and a larger and larger void...and over time this creates cave systems.
It is incredibly difficult to do photo-geology - in most cases, you can't just look at a picture of a rock surface & know what's going on with any sort of certainty. Any geologist who took a structural geology course and didn't sleep through it should know that this type of theorizing by photographs is just speculation. A two-dimensional image is a poor representation of a three-dimensional object and does not in any way, shape, or form tell the whole story. Now if they got a probe down in that area to look at the dark spots from different angles and to do some sampling and get some other evidence to support the idea that there are caves there, THEN this can move out of the speculation category.
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Plate tectonics and the presence of water have nothing to do with each other. And caves and plate tectonics have nothing to do with each other either. Caves are generally created by underground waterflow - some rock types have more of a tendency to be "dissolved" by water because of their chemical makeup. When water passes through and starts to dissolve the rock, it leaves a void behind...and with more water flow there's more dissolving and a larger and larger void...and over time this creates cave systems.
It is incredibly difficult to do photo-geology - in most cases, you can't just look at a picture of a rock surface & know what's going on with any sort of certainty. Any geologist who took a structural geology course and didn't sleep through it should know that this type of theorizing by photographs is just speculation. A two-dimensional image is a poor representation of a three-dimensional object and does not in any way, shape, or form tell the whole story. Now if they got a probe down in that area to look at the dark spots from different angles and to do some sampling and get some other evidence to support the idea that there are caves there, THEN this can move out of the speculation category.