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stratigraphy
Alaska
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Earth Sciences
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Ellesmere Island
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Geology
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Geology of North America
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Glaciology
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Physical Sciences and Mathematics
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Tectonics
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Tectonics and Structure
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Yukon
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alaska
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alaska range
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arctic region
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geochronology
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geophysical surveys
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glacier dynamics
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glaciers
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ground-penetrating radar
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ice flow
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melting
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north america
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observation data
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polar regions
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radar observation
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satellite observation
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space remote sensing
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spaceborne radar
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strike-slip
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subpolar zone
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