Aantal gezegden is 1469558
varav 1407627 på engelska
Gezegde (1469558 st) ZoekCategoriën (2627 st) Zoek
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Denna sidan visar ordspråk som liknar "We predicted we would only find a significant percentage of clay minerals in sediments toward the end of the Precambrian, when complex life arose, while earlier sediments would have less clay content. This test is easier than it sounds. Because clay minerals make up the bulk of sediment deposited today, we are saying that it should be largely absent in ancient rocks. And this is just what one finds.".