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Cuttingsville stock - andesite breccia (VTKab;0)
Geologic Formation
near
Shrewsbury
,
VT
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Lithology
Andesite
Geologic Age
Albian – Cenomanian (107 Ma – 97 Ma ago)
Geologic Unit Label
Kab
Andesite breccia containing xenoliths of Mesoproterozoic gneiss and autoclasts of felsic alkalic and fine-grained mafic rocks. Part of the White Mountain Igneous Suite; Cuttingsville stock - Composite stock and intrusive breccia dikes consisting of augite and hastingsite syenite, nepheline and sodalite syenite, essexite, and monzodiorite. Associated dikes of monchiquite, camptonite, bostonite, and spessartite. Average of five K-Ar ages 101 Ma; ages range between 103±4 and 99±2 Ma (Armstrong and Stump, 1971).
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USGS
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Classified As
Geologic Formation
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