Boulder field of metamorphosed gabbro present along eastern shore of Mountain Island Lake on Latta Plantation.

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

Gabbro - Latta Plantation

Close up of cobbles of metamorphosed gabbro present along eastern shore of Mountain Island Lake on Latta Plantation.


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

Gabbro - Latta Plantation

Close up of boulder of metamorphosed gabbro present along eastern shore of Mountain Island Lake on Latta Plantation.


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

Gabbro - Latta Plantation

Close up of boulder of metamorphosed granite of the High Shoals pluton.


According to Goldsmith et al. (1988), rocks are part of the Phs unit: High Shoals Granite (Pennsylvanian) – Very light gray, coarse-grained, Porphyritic, well foliated, commonly gneissoid biotite granite. Probably cogenetic with the Churchland plutonic suite.  U-Pb zircon age is 317 my (Horton and Stern, 1983)


Formation or Unit: Granite of the High Shoals pluton

Association:  Example of Late Paleozoic intrusive rocks common to much of the Piedmont

High Shoals pluton

Close up of same boulder as above of metamorphosed granite of the High Shoals pluton.  This view shows foliation defined by biotite concentrations

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According to Goldsmith et al. (1988), rocks are part of the Phs unit: High Shoals Granite (Pennsylvanian) – Very light gray, coarse-grained, porphyritic, well foliated, commonly gneissoid biotite granite. Probably cogenetic with the Churchland plutonic suite.  U-Pb zircon age is 317 my (Horton and Stern, 1983)


Formation or Unit: Granite of the High Shoals pluton

Association:  Example of Late Paleozoic intrusive rocks common to much of the Piedmont

High Shoals pluton

Close up of boulder of metamorphosed granite of the High Shoals pluton.  This view shows foliation defined by biotite concentrations.


According to Goldsmith et al. (1988), rocks are part of the Phs unit: High Shoals Granite (Pennsylvanian) – Very light gray, coarse-grained, porphyritic, well foliated, commonly gneissoid biotite granite. Probably cogenetic with the Churchland plutonic suite.  U-Pb zircon age is 317 my (Horton and Stern, 1983)


Formation or Unit: Granite of the High Shoals pluton

Association:  Example of Late Paleozoic intrusive rocks common to much of the Piedmont

High Shoals pluton

Close up of boulder of metamorphosed granite of the High Shoals pluton.  This view shows prominent feldspar porphyritic texture.


According to Goldsmith et al. (1988), rocks are part of the Phs unit: High Shoals Granite (Pennsylvanian) – Very light gray, coarse-grained, porphyritic, well foliated, commonly gneissoid biotite granite. Probably cogenetic with the Churchland plutonic suite.  U-Pb zircon age is 317 my (Horton and Stern, 1983)


Formation or Unit: Granite of the High Shoals pluton

Association:  Example of Late Paleozoic intrusive rocks common to much of the Piedmont

High Shoals pluton