If magma erupts on the surface as lava, it will form extrusive rock, e.g. basalt. These rocks are formed when magma solidifies. As the magma cools, mineral crystals will begin to grow. These ...

The Radio Recruits visit the Giant’s Causeway on the north coast of Northern Ireland. The Radio Recruits explore the Giant’s Causeway, an area of around 40,000 basalt rock columns that formed as a ...

Columnar rocks or joints as they are scientifically called are formed when thick basalt lava flows and cools down to form hexagonal or shaped cracks. Chakilam Venugopal Rao, Deputy Director ...

The presence of plentiful microbial life in basalt rocks formed in ancient times in ocean depths, where energy sources such as light and hot water--key ingredients to sustain life are scarce ...