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Tutorials

There are a selection of geology tutorials from introductory to advanced levels covering a range of topics which together form a free online textbook.

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Below is the abstract of an example tutorial.

Introduction to Metamorphic Petrology

Metamorphic petrology is the study of rocks which have been changed (metamorphosed) by heat and pressure. They are broadly categorized into regional and contact. Metamorphism is an extension of the process which forms sedimentary rocks from sediment: lithification. However, all types of rocks; igneous, sedimentary and metamorphic, can all be metamorphosed. During metamorphism no melting takes place. All the chemical reactions which take place occur in the solid-state.

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