Geologists have long struggled to understand massive time gaps in Earth’s rock record, where millions—sometimes billions—of ...

Igneous intrusions can be found all around Scotland, not just in Edinburgh and Lothian. Some other examples of igneous intrusions in Scotland can be found at Dumbarton Rock (a volcanic plug in ...

The Journal of Geology, Vol. 23, No. 8, Supplement: The Later Stages of the Evolution of the Igneous Rocks (Nov. - Dec., 1915), pp. 1-91 (91 pages) ...

There are three main rock types: igneous, sedimentary and metamorphic. These rocks are made of minerals that all have ...

Petrology is the study of rocks - igneous, metamorphic, and sedimentary - and the processes that form and transform ... the genesis of accessory minerals such as REE phosphates in all rock types, the ...

In Northern Ireland, we have a diverse range of rock forms. Basalt rock comprises most of County Antrim’s geological map, while sandstone and slate comprise most of Down and some of Armagh.

All plants require 17 elements to complete ... and they are usually derived from igneous and metamorphic rocks in soil (Lapidus 1987). In most soils, feldspars, micas, and quartz are the main ...