This used to be sand and other sediment - that's why it is called sandstone - which is a type of sedimentary rock. Sedimentary rocks are formed when pieces of rock are eroded, or worn away ...
Relative dating to determine the age of rocks and fossils Geologists have established a set of principles that can be applied to sedimentary and volcanic rocks that are exposed at the Earth's ...
ISLA: Oh this is the Scottish Parliament. Look at this wall Connor - it includes the three different types of rock: igneous, metamorphic and sedimentary. These are different rocks from across ...