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The concentric lines surrounding the caldera on Sacajawea are likely the result of volcanic activity and tectonic processes. These lines can indicate the movement of magma beneath the surface, creating layered deposits as eruptions occur over time. Additionally, the fracturing of the Earth's crust due to tectonic forces may contribute to the formation of these distinct patterns. Such geological features often reflect the complex interplay between volcanic eruptions and the structural dynamics of the surrounding terrain.

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3mo ago

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