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One versed in the science of geology.

An instrument to measure angles, esp. one used by geologists to measure the dip of strata.

epochs. This period immediately follows the primordial or Cambrian period, and is by many geologists regarded as the beginning of the Silurian age, See the Diagram, under Geology.

e first in time of the three subdivisions into which the Tertiary formation is divided by geologists, and alluding to the approximation in its life to that of the present era; as, Eocene deposits. -- n.

A peculiar structure found in the Archæan limestones of Canada and other regions. By some geologists it is believed to be a species of gigantic Foraminifera, but others consider it a concretion, without organic structure.

One versed in geognosy; a geologist. [R.]

A geologist.

To study geology or make geological investigations in the field; to discourse as a geologist. During midsummer geologized a little in Shropshire. Darwin.

Acadian and Potsdam periods in American geology. It is called also Cambrian, and by many geologists is separated from the Silurian.

or impregnated with, salt. Saliferous rocks (Geol.), the New Red Sandstone system of some geologists; -- so called because, in Europe, this formation contains beds of salt. The saliferous beds of New York State belong largely to the Salina period of the Upper Silurian. See the Chart of Geology.

Of or pertaining to A. G. Werner, The German mineralogist and geologist, who classified minerals according to their external characters, and advocated the theory that the strata of the earth's crust were formed by depositions from water; designating, or according to, Werner's system.