Title |
Comment |
Keywords |
Volcanoes Die With Changes In Plate Boundaries
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13:20 - 14:07 (00:47) / 0.8 MB
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"James Sadd", volcano, "convergent plate margin", "Panam Crater", gas, eruption, crater, pumice, magma, vent, plug, dome, obsidian, viscosity, silica
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Textures and Conditions
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06:48 - 07:53 (01:05) / 1.6 MB
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"J. Lawford Anderson", crystal, phaneritic, granite, aphanitic, obsidian
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Geology School Keywords
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