{ "culture": "en-US", "name": "", "guid": "", "catalogPath": "", "snippet": "Potomac Top of Basement", "description": "

Top of basement contours from Brown and others (1972)<\/SPAN><\/P>

<\/P><\/DIV><\/DIV>", "summary": "Potomac Top of Basement", "title": "Potomac Top of Basement", "tags": [ "Lower Potomac Group", "Maryland", "Delaware", "New Jersey" ], "type": "", "typeKeywords": [], "thumbnail": "", "url": "", "minScale": "NaN", "maxScale": "NaN", "spatialReference": "", "accessInformation": "Brown, P. M., Miller, J. A., and Swain, F. M., 1972, Structural and stratigraphic framework, and spatial distribution of permeability of the Atlantic coastal plain, North Carolina to New York: U.S. Geological Survey, Professional Paper 796, 79 p, 59 plates.", "licenseInfo": "See access and use constraints information.", "portalUrl": "" }