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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.
Kilauea volcano photos The most active volcano in the world with a record long lasting eruption since 1983: images of lava flows, lava lakes, explosions, lava meeting the ocean, aerials and more.
Photos from Armenia Armenia is a very photogenic country with a large variety of landscapes showing some very spectacular geology, century-old monasteries and castles, and much more.