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003 OCoLC;

005 20141212050735.0;

006 m o d ;

007 cr bn|||||||||;

008 130116s2012 ncuab ob 000 0 eng d;

035 a| (Sirsi) o824511285;

035 a| (OCoLC)824511285;

049 a| EREE;

090 a| QE571;

100 1 a| Moran, Kelli.?| UNAUTHORIZED;

245 10 a| Late Holocene evolution of Currituck Sound, North Carolina, USA :b| environmental change driven by sea-level rise, storms and barrier island morphology /c| by Kelli Moran.;

260 a| [Greenville, N.C.] :b| East Carolina University,c| 2012.;

300 a| 102 pages :b| illustrations (some color), maps, digital, PDF file;

336 a| text2| rdacontent;

337 a| computer2| rdamedia;

338 a| online resource2| rdacarrier;

538 a| System requirements: Adobe Reader.;

538 a| Mode of access: World Wide Web.;

502 b| M.S.c| East Carolina Universityd| 2012.;

500 a| Presented to the faculty of the Department of Geological Sciences.;

500 a| Advisors: David Mallinson and Stephen Culver.;

500 a| Title from PDF t.p. (viewed Feb. 22, 2013).;

520 3 a| Coastal evolution is an increasingly important area of study, especially with the projected rise in sea level, increase in storm intensity, and population increases along the nation's coasts. In order to predict how the coastal environment will respond to these changes in the future, we need to first understand the evolution of coastal systems in the past. Here I address the late Holocene evolution of Currituck Sound, North Carolina, by examining time periods with different barrier island and inlet configurations interpreted from core data. Chirp seismic data and 13 vibracores have been used to interpret the Holocene development of this region. Four depositional units have been defined, based on lithofacies, biofacies, geophysical, and geochronologic data. The lowermost depositional unit (Unit I) is represented by quartz sand, barren of foraminifera, and is Pleistocene in age based on an OSL age estimate of 33.7 ka. Unit II consists of slightly muddy sand that fines upward to slightly sandy mud; it is barren of foraminifera, contains rooted horizons in several cores, and is interpreted as a fresh water swamp forest deposit (radiocarbon dating provide age estimates of ca. 4000 to 2800 cal y BP). Unit III is characterized by slightly sandy mud to mud containing a calcareous foraminiferal assemblage and oyster bioherms; these characteristics indicate a back-barrier estuarine environment with high salinity (ca. 25 to 35) due to open inlets in the barrier islands to the east. Radiocarbon age estimates for Unit IV range from ca. 1700 to 500 cal y BP. The topmost unit (Unit IV) is composed of sediment with variable composition, ranging from clean quartz sand to mud, and contains foraminiferal assemblages that are generally mixed calcareous/agglutinated at the base overlain by entirely agglutinated assemblages. This unit represents the modern (post- ca. 1827), mid- to low salinity (less than 10), back-barrier lagoon with no inlets open in the barrier island. Sediment and microfossil-based paleoenvironmental and geomorphic reconstructions, including variable numbers of inlets, have been used as input into the Delft3D hydrodynamic model to understand inlet related changes to tides and currents within the Sound. This modeling indicates that impacts of inlets are very localized and only inlets in the direct vicinity of Currituck Sound (i.e., between historic Caffey's Inlet and Kill Devil Hills) have a significant impact on the water levels and currents in the study area.;

504 a| Includes bibliographical references.;

650 0 a| Sedimentation and depositionz| North Carolinaz| Currituck Sound.=| ^A17524;

650 0 a| Paleogeographyz| North Carolinaz| Currituck Sound.=| ^A67065;

650 0 a| Paleogeographyy| Holocene.=| ^A1017389;

650 0 a| Sounds (Geomorphology)z| North Carolina.=| ^A136366;

651 0 a| Currituck Sound (N.C.)=| ^A261584;

653 a| Geology;

700 1 a| Mallinson, David J.?| UNAUTHORIZED;

700 1 a| Culver, Stephen J.=| ^A153086;

710 2 a| East Carolina University.b| Department of Geological Sciences.=| ^A1066239;

856 40 z| Access via ScholarShipu| http://hdl.handle.net/10342/4096;

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994 a| C0b| ERE;

596 a| 1 4;

998 a| 3255384;

999 a| CLICK ON WEB ADDRESSw| ASISc| 1i| 3255384-1001l| JNETm| JOYNERr| Ys| Yt| JNE3ETDu| 1/16/2013x| ETDz| JERESOURCE;

999 a| CLICK ON WEB ADDRESSw| ASISc| 1i| 3255384-2001l| HSLELECm| HSLr| Ys| Yt| HEETDu| 1/16/2013x| ETDz| HERESOURCE;

Late Holocene evolution of Currituck Sound, North Carolina, USA environmental change driven by sea-level rise, storms and barrier island morphology / by Kelli Moran.

Author/creator	Moran, Kelli
Other author	Mallinson, David J.
Other author	Culver, Stephen J.
Other author	East Carolina University. Department of Geological Sciences.
Format	Theses and dissertations
Publication Info	[Greenville, N.C.] : East Carolina University, 2012.
Description	102 pages : illustrations (some color), maps, digital, PDF file
Supplemental Content	Access via ScholarShip
Subjects	Sedimentation and deposition--North Carolina. --Currituck Sound. Paleogeography--North Carolina. --Currituck Sound. Paleogeography--Holocene. Sounds (Geomorphology)--North Carolina. Currituck Sound (N.C.)

Summary	Coastal evolution is an increasingly important area of study, especially with the projected rise in sea level, increase in storm intensity, and population increases along the nation's coasts. In order to predict how the coastal environment will respond to these changes in the future, we need to first understand the evolution of coastal systems in the past. Here I address the late Holocene evolution of Currituck Sound, North Carolina, by examining time periods with different barrier island and inlet configurations interpreted from core data. Chirp seismic data and 13 vibracores have been used to interpret the Holocene development of this region. Four depositional units have been defined, based on lithofacies, biofacies, geophysical, and geochronologic data. The lowermost depositional unit (Unit I) is represented by quartz sand, barren of foraminifera, and is Pleistocene in age based on an OSL age estimate of 33.7 ka. Unit II consists of slightly muddy sand that fines upward to slightly sandy mud; it is barren of foraminifera, contains rooted horizons in several cores, and is interpreted as a fresh water swamp forest deposit (radiocarbon dating provide age estimates of ca. 4000 to 2800 cal y BP). Unit III is characterized by slightly sandy mud to mud containing a calcareous foraminiferal assemblage and oyster bioherms; these characteristics indicate a back-barrier estuarine environment with high salinity (ca. 25 to 35) due to open inlets in the barrier islands to the east. Radiocarbon age estimates for Unit IV range from ca. 1700 to 500 cal y BP. The topmost unit (Unit IV) is composed of sediment with variable composition, ranging from clean quartz sand to mud, and contains foraminiferal assemblages that are generally mixed calcareous/agglutinated at the base overlain by entirely agglutinated assemblages. This unit represents the modern (post- ca. 1827), mid- to low salinity (less than 10), back-barrier lagoon with no inlets open in the barrier island. Sediment and microfossil-based paleoenvironmental and geomorphic reconstructions, including variable numbers of inlets, have been used as input into the Delft3D hydrodynamic model to understand inlet related changes to tides and currents within the Sound. This modeling indicates that impacts of inlets are very localized and only inlets in the direct vicinity of Currituck Sound (i.e., between historic Caffey's Inlet and Kill Devil Hills) have a significant impact on the water levels and currents in the study area.
General note	Presented to the faculty of the Department of Geological Sciences.
General note	Advisors: David Mallinson and Stephen Culver.
General note	Title from PDF t.p. (viewed Feb. 22, 2013).
Dissertation note	M.S. East Carolina University 2012.
Bibliography note	Includes bibliographical references.
Technical details	System requirements: Adobe Reader.
Technical details	Mode of access: World Wide Web.

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Late Holocene evolution of Currituck Sound, North Carolina, USA environmental change driven by sea-level rise, storms and barrier island morphology / by Kelli Moran.

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