When the crust breaks, it develops ruptures, and rock masses are displaced along these faults. Where exactly and how faulting will occur depends to a large extent on the nature of the stresses.
Third, magnetism in rocks can be used to estimate the age of a fossil site. This method uses the orientation of the Earth's magnetic field, which has changed through time, to determine ages for ...
This is a beginner's guide to identifying UK rock types. The guide has two main sections: background information on the structure and forces affecting the Earth in relation to rock formation a more ...