When Ore Scaling is enabled, lithium brine and fluorine vents do not generate on Aquilo (except for the few resources that spawn in the starting area).
If I disable the mod, both resources generate normally.

My log, save file, mod list and screenshot: https://drive.google.com/drive/folders/10w5LBDPkMZ_yHWROcZvIRmPuIXEvQuUR?usp=sharing

There's an island roughly below the hotbar at the very bottom left (in the screenshot)—you can test it there. If you generate it with your mod, it will be empty. But if you generate it without the mod, it will have resources.

I found the bug; on line 41 and 42 of data/aquilo the code needs to be
local fluorine_vent_spread = " random_penalty{x=x,y=y,source=" .. "control:fluorine_vent:size}+(" ..
fluorine_vent_spread_source .. "control:fluorine_vent:size)"
instead of
local fluorine_vent_spread = " random_penalty{x=x,y=y,source=" .. "control:lithium_brine:size}+(" ..
fluorine_vent_spread_source .. "control:lithium_brine:size)"

This made it so that line 50 would set the spawn probability to zero if the map settings size of fluorine vents were smaller than the size of lithium brine.

I also had renamed all the instances of flourine to fluorine within the data/aquilo file.