Assertion: seawater's magnesium | /r/AtLocation | the water
Facets:
Source sentences:
text: As is discussed below, the amount of magnesium getting into calcium carbonate skeletons is a function of how much magnesium is in the water.
text: The amount of magnesium incorporated into the calcium carbonate skeletons of organisms such as corals is a function of how much magnesium is in the water.