mass transport  |
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SN | Not a valid term for GeoRef. As of 1989, see mass movements; sedimentation; transport. |
massifs  |
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SN | As of 1981, no longer a valid term for GeoRef. Use complexes. |
massive  |
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SN | A valid index term through 1977. After 1977, use massive bedding for the sedimentary structure, and use massive deposits for ore deposits. |
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