A similar system exists in seawater, where by 44Ca/40Ca tends to rise when the speed of elimination of Ca2+ by mineral precipitation exceeds the enter of new calcium in the ocean. In 1997, Skulan and DePaolo presented the first evidence of change in seawater 44Ca/40Ca over geologic time, along with https://localairqualityinirvine38271.webdesign96.com/28617333/facts-about-environmental-hazardous-materials-in-santa-ana-revealed