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Willoughby pluton - main zone (VTDwmz;0)
Geologic Formation
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VT
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Lithology
Pegmatite
Geologic Age
Givetian – Famennian (385 Ma – 367 Ma ago)
Geologic Unit Label
Dwmz
Light-gray to pink, medium- to very coarse grained, massive, miarolitic garnet-muscovite peraluminous leucogranite. Pegmatitic main zone. Rb/Sr whole-rock age of 376±9 Ma (Ayuso and Arth, 1992). Igneous rocks of the Northeast Kingdom batholith of Ayuso and Arth (1992). Part of the New Hampshire Plutonic Suite.
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