We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
NEW MODEL OF PLEISTOCENE STRATIGRAPHY, OUTER COASTAL PLAIN, NORTHEASTERN NORTH CAROLINA: PATTERNS AND PROBLEMS.
- Authors
MILLER III, WILLIAM
- Abstract
The general picture of Pleistocene stratigraphy in the Outer Coastal Plain of North Carolina has changed significantly in the last five decades owing to new work involving subsurface coring, application of geophysical methods, radiometric and amino-acid dating, chronostratigraphic improvements, and high-resolution paleoenvironmental analyses. A crucial part of this change resulted from the concentration of attention to the thick, relatively complete succession of stratigraphic units within the Albemarle Embayment. Exposures at river banks, borrow pits and smaller excavations to the north and south of the embayment typically do not reveal much of the lateral variation of the familiar, named lithologic units, and successions are not as complete. These limited stratigraphic windows on Pleistocene stratigraphy in the region remain important opportunities for description and interpretation of stratigraphic units, which can be lithologically indistinguishable, but separated by unconformities and associated with different landforms--and therefore should be considered allostratigraphic units. Local exposures need to be analyzed and integrated into the regional stratigraphic framework using multiple methods if possible, in addition to the standard documentation of lithologies and most abundant macrofossils. Much remains to be done involving precise age determinations, correlations of units exposed along rivers and in excavations with allostratigraphic units delineated in the Albemarle Embayment, and matching units to Marine Isotope Stages and ultimately to Quaternary climate cycles.
- Subjects
NORTH Carolina; PLEISTOCENE stratigraphic geology; RIPARIAN areas; LANDFORMS; CLIMATE change
- Publication
Southeastern Geology, 2019, Vol 53, Issue 3, p181
- ISSN
0038-3678
- Publication type
Article