Arthur Harbor  |
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RT | Antarctica | | Anvers Island | SN | On Anvers Island. Off NW Antarctic Peninsula. Indexed with regions as applicable. |
artificial  |
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SN | A valid term through 1977. After 1977, use artificial recharge, artificial islands, artificial intelligence, or synthetic materials if applicable. |
artificial minerals  |
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SN | Not a valid index term for GeoRef. Use synthetic materials and specific mineral name. |
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