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Norbeck Intrusive Suite

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Norbeck Intrusive Suite
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The Norbeck Intrusive Suite is an Ordovician granitic pluton in Montgomery County, Maryland. The intrusive suite was originally mapped as the Norbeck Quartz Diorite by Hopson,[1] and is shown as such on the Geologic Map of Maryland of 1968.[2] A. A. Drake later revised the name after more detailed mapping.[3] It intrudes through the Wissahickon Formation.

Quick Facts Type, Lithology ...
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Description

Three lithologies were mapped in the Kensington quadrangle by Drake:[3]

References

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