Thursday, August 7, 2008

General Geologic Maps

The Geological Survey of North Carolina
has made a series of quite detailed geologic maps. The general geologic map of the state (detail of Durham below) is quite detailed but easy to figure out though you may need a plugin to use it. The other two maps are less easy for the non-geologist to figure out but are detailed down to the 1:24,000 USGS quadrangle (unfortunately only available now for SE and SW Durham). On the large map note the north-west part of Durham between 15-501/Hillsborough Rd. and the Orange county line where the Durham Triassic basin ends and older rock begins to show.

General Geologic Map

Full View

SE Durham Quad

Full View

SW Durham Quad

Full View

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