A type locality, type section in geology is the specific geographic locality where a particular rock type, stratigraphic unit, unstratified rock unit, mineral species, stratigraphic boundary, or other geological feature was originally defined and named. The type area is the geographic area or region that surrounds the type locality (stratotype, if defined) of a stratigraphic unit or stratigraphic boundary.
A type locality, type section in geology is the specific geographic locality where a particular rock type, stratigraphic unit, unstratified rock unit, mineral species, stratigraphic boundary, or other geological feature was originally defined and named. The type area is the geographic area or region that surrounds the type locality (stratotype, if defined) of a stratigraphic unit or stratigraphic boundary.
Source: Wikipedia "Type locality (geology)" · CC BY-SA 4.0
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