Sedimentology explores the origin, transport, deposition and diagenetic alterations of the materials that compose sediments and sedimentary rocks. Stratigraphy investigates how those types of rocks ...

Sedimentary rocks are formed by small rock pieces which ... For example, small pebbles of rock are rolled along a river-bed. 2 Deposition In deposition, sediment which was carried in transport ...

"Sedimentary rocks are hard to date" said Crossey "but the deposition of the sediment and fossils entombed within it, must be ...