Physical Geography
Basalt is a fine-grained, dark-colored volcanic rock that primarily consists of plagioclase and pyroxene minerals. It forms from the rapid cooling of lava that erupts onto the Earth's surface, making it one of the most common types of igneous rock found in the Earth's crust. Basalt plays a crucial role in the rock cycle as it can weather and alter to form soil or sediment, and it is also involved in processes that contribute to the formation of new geological features.
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