An analogous procedure exists in seawater, where 44Ca/40Ca has a tendency to rise when the rate of removing of Ca2+ by mineral precipitation exceeds the input of new calcium in the ocean. In 1997, Skulan and DePaolo introduced the 1st evidence of adjust in seawater 44Ca/40Ca over geologic time, in https://jaidenkezto.articlesblogger.com/51158919/getting-my-environmental-hazardous-materials-in-santa-ana-to-work