The magma cools down and solidifies, leaving behind a mound of rock, like Traprain Law. Igneous intrusions can be found all around Scotland, not just in Edinburgh and Lothian. Some other examples ...

An igneous rock has come to be regarded, more constantly than before, not merely as a mineral-aggregate, but as-the product of consolidation of a molten rock-magma; and consideration has been ...

Your Artstor image groups were copied to Workspace. The Artstor website will be retired on Aug 1st. The Journal of Geology Vol. 26, No. 5, Jul. - Aug., 1918 Internal Structures of Igneous Rocks; Th ...

Igneous rock is formed by the cooling of molten rock ... which generally destroys any fossils that were in the rock before it was metamorphosed. For example, marble is created when limestone is ...

background information on the structure and forces affecting the Earth in relation to rock formation a more practical hand-specimen guide with examples of rock samples commonly found in the United ...

The rock was excavated from the Bushveld Igneous Complex in South Africa, an area known for its rich ore deposits. This is the oldest example of living microbes being found within ancient rock so ...