| The trend is produced by the presence of variable amounts of hemipelagic mud in the authigenic carbonates. |
| It occurs in all kinds of minerals, such as oxides, carbonates, nitrates, sulfates, and phosphates. |
| Late chlorite and carbonates overgrew the schistosity defined by phengite, chlorite and quartz. |
| That tillites were found closely associated with carbonates was cited as additional evidence of huge fluctuations in global climates. |
| The age of the carbonates can be clearly determined, and some very old ones had been found on certain asteroids and meteorites. |
| The majority of the carbonates and gypsum are autogenetic with only minor secondary accumulations with depth. |
