| The replacement of the authigenic magnetite by hematite probably occurred at the same time as the specular hematite that surrounds the dolomite grains. |
| As diagenetic growth of authigenic apatite continues within a bone, the isotopic composition of the whole bone will trend towards a purely diagenetic signal. |
| Later, authigenic quartz was precipitated and carbonate phases were partly silicified. |
| This mineral is probably authigenic clay that formed in the spring waters while the silica was being precipitated. |
| The occurrence of authigenic zeolites suggests deposition in hypersaline lacustrine waters in closed basins. |
| Sandstones with this component contain authigenic hematite intergrown with kaolinite and illite and replacing muscovite. |
