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Seismic Section

Interpreted seismic section (A-A') for the inner shelf study area, showing major seismic reflections from Cape Lookout (left) to Cape Hatteras (right). Lines show the interpreted locations of the Pliocene-Pleistocene boundary (2.6 million years ago), Pleistocene subaerial unconformity dating to between 170,000 and 770,000 years ago, and the base of paleo-fluvial valleys at a Pleistocene subaerial unconformity dating to more than 10,000 years ago.

Interpreted seismic section (A-A') for the inner shelf study area, showing major seismic reflections from Cape Lookout (left) to Cape Hatteras (right). The Pliocene-Pleistocene boundary, a submarine unconformity, dips northward from Cape Lookout (A) to Cape Hatteras (A’) and the overlying unit thickens northward. The Pleistocene subaerial unconformity is older than 170,000-770,000 years. The reflection delineated in purple is a subaerial unconformity (the low stand erosional surface) that defines the base of the major paleo-fluvial valleys.

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Graphic by Trista L. ThornberryEhrlich (Colorado State University) after figure 4 from Thieler et al. (2014) and Mallinson et al. (2010a).

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Cape Lookout National Seashore, Code: CALO

Cape Lookout National Seashore, Carteret County, North Carolina
Latitude: 34.9581985473633, Longitude: -76.1900024414063

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01/01/0001

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