Geology and geoscience - introduction
Geology (from the Greek gea=earth and logos=study) is the natural science about the solid Earth, in particular the rocks it is composed of and the internal and external processes that shape it.
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Introduction to Plate Tectonics
The Earth's upper, rigid layer is broken into several plates which are in constant motion to one another. Most earthquakes and volcanoes occur as result of these plate boundaries.
Lists and maps of earthquakes in the world in near real time. Country lists, earthquake archive, and I-felt-it reports.
Volcanoes in the Solar System
The Earth is not the only place with volcanic activity. Active volcanism also occurs at at least 3 other bodies in our Solar System.
Igneous or magmatic rocks
The most primitive rock type forms when magma (molten rock) solidifies - either inside the earth (plutonic rocks) or during volcanic eruptions (volcanic rocks). A short overview.
Glossary of geologic terms
A growing list of often illustrated explanations and definitions of geological terms and keywords, with focus on volcanology and seismology.