First published use as map unit in vicinity of McCaslin syncline east of the town of Mountain, northern Oconto Co, WI (Lake Superior region). Name "Macauley granite" attributed to Mancuso (unpublished thesis, Univ. WI). Type locality not designated. Named from Macauley Creek. Typical Macauley described at field trip Stop 2 as "a coarse grey gneiss. On fresh faces it can be seen that the foliation has no uniform strike and dip but is conspicuously 'swirled' or contorted. One possible explanation is that the gneiss developed by partial granitization of an ashy deposit in which the bedding was contorted by slumping during deposition." Macauley at Stop 1 "is finer grained and less distinctly foliated." Occurs as a "band of grey, gneissic granite running through" the Waupee volcanics (first used). Age is not stated. Is shown on geologic sketch map (p. 3). Also called "Macauley granite" (p. 4).

Source: GNU records (USGS DDS-6; Reston GNULEX).