How to read:

Each tier has one list of spots; a spawn (initial or respawn) picks a uniformly random entry of the tier's list, so a deposit listed N times on a map (xN) is N times as likely to roll there. * = at least one entry on that map is limited to a sub-area. A mined deposit respawns at a random spot of its own tier, not necessarily the same map. Tier 3 elements share one list, so each element's share depends on its number of entries.
Spawns by map