Large boulder of gabbro associated with the Farmington Gabbro.  Photograph taken at the Davie County rest area on west bound I-40.


According to Goldsmith et al. (1988), rocks are part of the DScgb unit:  Gabbro of Concord plutonic suite (Devonian and Silurian) – Gabbro, norite, gabbronorite, and hornblende gabbro.  Major minerals are plagioclase, both clinopyroxene and orthopyroxene, and hornblende, biotite, and olivine or quartz.


Formation or Unit: Gabbro of the Concord plutonic suite

Association:  Example of intrusive rocks within Charlotte terrane

Terrane: Charlotte terrane

Farmington Gabbro

Close up of gabbro boulder associated with the Farmington Gabbro.  Photograph taken at the Davie County rest area on west bound I-40

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According to Goldsmith et al. (1988), rocks are part of the DScgb unit:  Gabbro of Concord plutonic suite (Devonian and Silurian) – Gabbro, norite, gabbronorite, and hornblende gabbro.  Major minerals are plagioclase, both clinopyroxene and orthopyroxene, and hornblende, biotite, and olivine or quartz.


Formation or Unit: Gabbro of the Concord plutonic suite

Association:  Example of intrusive rocks within Charlotte terrane

Terrane: Charlotte terrane

Farmington Gabbro

Outcrop of aluminous quartzite showing steeply dipping original bedding. Black camera lens cap near center of photograph for scale is approximately 7.5 cm diameter. 

Photograph taken at Crowders Mountain State Park on the Pinnacle Trail to Kings Pinnacle.


Formation or Unit: Zbaq – Aluminous quartzite unit in the Battleground Formation (Horton, 2008)


Sequence: Kings Mountain sequence (Horton, 2008).  Also known as Kings Mountain belt


Terrane: Carolina terrane.  Also known as Kings Mountain belt.

Aluminous quartzite - Crowder's Mtn
Close up of fresh surface of boulder of aluminous quartzite.  Photograph taken at Crowders Mountain State Park on the Pinnacle Trail to Kings Pinnacle.

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Formation or Unit: Zbaq – Aluminous quartzite unit in the Battleground Formation (Horton, 2008)


Sequence: Kings Mountain sequence (Horton, 2008).  Also known as Kings Mountain belt


Terrane: Carolina terrane.  Also known as Kings Mountain belt.

Aluminous quartzite - Crowder's Mtn