ice ages  |
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SN | A valid index term through 1977 used in combination with ancient (i.e. Ice ages, ancient). After 1978, use ancient ice ages for pre-Quaternary glaciation; use glaciation for Quaternary age. |
ice flows  |
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SN | As of 1993, use ice movement. |
ice islands  |
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SN | Not a valid GeoRef index term after 1970. Used in subfile N. Now see artificial islands, sea ice, ice shelves, ice rafting or icebergs. |
ice scouring  |
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SN | Use glacial erosion AND scour if applicable. Also see icebergs if applicable. |
ice-mar  |
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