Full View

Contents of 5.5 How are sedimentary rocks classified?

5.5 How are sedimentary rocks classified?

• Chemical sedimentary rocks - composition is the main classification term
• Calcite/dolomite ~ limestones
• Quartz ~ chert (also flint, chalcedony, agate )
• Evaporites ~ salts from seawater (halite, gypsum)
• Plant organic matter ~ coal