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Figure 1. Map showing locations of major occurrences of Grenville-age basement in eastern North America. Labelled areas include: 1, Long Range massif; 2, Adirondack massif; 3, Green Mountains massif; 4, Berkshire massif; 5, Hudson Highlands–New Jersey Highlands–Reading prong; 6, Honey Brook upland; 7, Baltimore Gneiss antiforms; 8, Blue Ridge province, including Shenandoah (8a) and French Broad (8b) massifs; 9, Goochland terrane; 10, Sauratown Mountains anticlinorium; and 11, Pine Mountain belt. Map modified after Rankin and others (1989a). | ||