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Moretown Formation - carbonaceous and sulfidic schist member (VTOmb;0)

Geologic Formation in VT

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Lithology

Schist

Geologic Age

Cambrian – Early Ordovician (542 Ma – 471.4 Ma ago)

Geologic Unit Label

Omb

Rusty-weathering, dark-gray biotite-muscovite-quartz (±garnet) schist, carbonaceous schist, and gray, splintery-fractured, biotitic sulfidic quartz schist. Contains layers of rusty-weathering amphibolite, coticule, and vitreous quartzite (Ombq). A prominent zone that extends from the north end of the Chester dome and near Proctorsville southward to near Townshend contains abundant ultramafic rocks (CZu). Part of the metasedimentary host rocks of the North River Igneous Suite. Rocks of the Early to Late Taconic Accreted Terrane of the Rowe-Hawley Zone. Eastern allochthonous sequence, oceanic and accretionary realm, ultramafic inclusions, volcanic-arc intrusives, and volcanic rocks.

— USGS

Taxonomy

Classified As

Geologic Formation