NORIAN
Source: 567
No″ri‐an (?), a. [[From norite.]] (Geol.) Pertaining to the upper portion of the Laurentian rocks. T. S. Hunt.
Source: 567
No″ri‐an (?), a. [[From norite.]] (Geol.) Pertaining to the upper portion of the Laurentian rocks. T. S. Hunt.