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035 a| (Sirsi) o21925882;

035 a| (OCoLC)21925882;

043 a| n-us-nc;

049 a| EREE;

050 4 a| GC97.8.N8b| S28x 1990;

100 1 a| Saunders, Charles L.,c| III,e| author.?| UNAUTHORIZED;

245 10 a| Substrate variability and internal sediments of three Carolina bays, South-Central Coastal Plain, North Carolina /c| by Charles L. Saunders, III.;

264 0 c| 1990.;

300 a| x, 156 leaves :b| illustrations ;c| 28 cm;

336 a| textb| txt2| rdacontent;

337 a| unmediatedb| n2| rdamedia;

338 a| volumeb| nc2| rdacarrier;

502 b| M.S.c| East Carolina Universityd| 1990;

500 a| Submitted to the faculty of the Department of Geology.;

500 a| Advisor: Charles Q. Brown;

500 a| Advisor: Lee J. Otte;

651 0 a| Pretty Pond Bay (N.C.)?| UNAUTHORIZED;

520 3 a| Three Carolina Bays--Pretty Pond Bay, 01 in-Tatum Millpond Bay and Black Creek Bay--were examined to define the stratigraphy and quantify the characteristics of each sediment sequence contained in the bay. Each bay exhibits a different internal sediment or subsoil type: clayey, sandy, and organic. The depositional history of each bay is interpreted from the detailed stratigraphy of these different sediment types. Fine grained sediments exposed in the floor of Pretty Pond Bay, the clayey bay, do not represent a sequence of bay infill sediments confined to the topographic basin as in most previously studied bays. The muddy sands and sandy muds are part of a laterally extensive unit which extends in the subsurface outside the bay proper. The hydrologic characteristics, lateral extent, and bowl-like shape of this prebay unit helped initiate bay formation by facilitating the initial ponding of water in the depression. Pretty Pond Bay is being filled by lateral progradation of the sands which surround the bay into the bay proper atop the prebay sandy mud unit, 01 in-Tatum Millpond Bay, the sandy bay, and Black Creek Bay, the organic bay, have general bay fill stratigraphy similar to each other, although the latter is a really larger and was initially deeper. A fine-grained lacustrine unit, the initial unit of bay fill, is confined to the southeast portion of both bays. A more laterally extensive carbonaceous unit, which fills the remainder of the bay proper, is above this basal unit. The carbonaceous unit in Black Creek Bay is thicker and contains a greater percentage of organic material than in Olin-Taturn Millpond Bay where the thinner carbonaceous sediments are sandier. Sediments contained in Cl in-Tatum Millpond Bay and Black Creek Bay represent a gradient of sediment texture from sandy to organic. The thickness of the carbonaceous sediments preserved in the bays is the primary basis for delineation of the two textural types. Factors influencing the accumulation and preservation of the organic-rich sediments include hydrologic and basin morphometric parameters. Water depth in the basin, the primary hydrologic factor, is influenced by both the distance and the groundwater gradients from the bay to the nearest drainage, and by local dissection of the interstream divide where the bay is located. Initial basin depth and continuity of the bay boundary are important morphometric factors. The sediment types preserved in bays are related to their location with respect to geomorphic surfaces and the hydrologic and morphometric factors mentioned above. The bays in this study are situated on two different geomorphic surfaces within the Middle Coastal Plain province of south central North Carolina. Pretty Pond Bay, which normally contains water, occurs on the Coharie morphostratigraphic unit in Robeson County, whereas 01 in-Tatum Millpond Bay and Black Creek Bay occur atop an eolian surface which blankets much of the ancestral Cape Fear River Floodplain in Bladen County. In North Carolina, Pretty Pond Bay and other clayey bays are generally geographically limited to the Middle Coastal Plain province on the Brandywine and Coharie morphostratigraphic surfaces. Surficial sediments in these areas are often fine-grained sands with muddy layers. Thus the materials available for deposition as bay fill are fine-grained. Additionally, if shallow subsurface fine-grained sediments are laterally extensive they could act as a potential hydrologic barrier to initiate bay formation. The sandy and organic bays are more widespread in occurrence, although generally they are found on the sandier and lower geomorphic surfaces.;

504 a| Includes bibliographical references (leaves 129-136).;

650 0 a| Baysz| North Carolina.=| ^A72701;

651 0 a| Olin-Tatum Millpond Bay (N.C.)?| UNAUTHORIZED;

651 0 a| Black Creek Bay (N.C.)?| UNAUTHORIZED;

650 0 a| Estuarine oceanography.=| ^A400475;

650 7 a| Bays.2| fast0| (OCoLC)fst00829042;

650 7 a| Estuarine oceanography.2| fast0| (OCoLC)fst00915704;

655 7 a| Academic theses.2| fast0| (OCoLC)fst01726453;

655 7 a| Academic theses.2| lcgft;

655 7 a| Thèses et écrits académiques.2| rvmgf0| (CaQQLa)RVMGF-000001173;

655 2 a| Academic Dissertation.0| (DNLM)D019478?| UNAUTHORIZED;

700 1 a| Brown, Charles Q.,e| degree supervisor.?| UNAUTHORIZED;

700 1 a| Otte, Lee J.,e| degree supervisor.1| https://id.oclc.org/worldcat/entity/E39PCjqPr6g8Y4QM48hR9D4tqP=| ^A130053;

710 2 a| East Carolina University.b| Department of Geology.?| UNAUTHORIZED;

856 41 z| Access via ScholarShipu| http://hdl.handle.net/10342/12752;

949 a| Click on web addressw| asish| joyner101;

949 a| Click on web addressw| asish| hsl111;

994 a| C0b| ERE;

596 a| 1 4;

998 a| 352339;

999 a| MICROFILMw| JNCMFc| 1i| 239646*d| 9/25/1997l| JNCMFm| JOYNERr| Ys| Yt| JNCFMIu| 6/29/1990x| MICROFORMz| JNCCOLLo| .STAFF. 0;

999 a| ASK AT SPECIAL COLLECTIONS DESKw| ASISc| 1i| 543304d| 8/21/2001l| JSCJTHDm| JOYNERr| Ys| Yt| JSCJTHDu| 8/21/2001x| ETDz| JSPECCOLLo| .STAFF. 0;

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Substrate variability and internal sediments of three Carolina bays, South-Central Coastal Plain, North Carolina / by Charles L. Saunders, III.

Author/creator	Saunders, Charles L. author.
Other author	Brown, Charles Q., degree supervisor.
Other author	Otte, Lee J., degree supervisor.
Other author	East Carolina University. Department of Geology.
Format	Theses and dissertations
Production	1990.
Description	x, 156 leaves : illustrations ; 28 cm
Supplemental Content	Access via ScholarShip
Subjects	Bays--North Carolina. Estuarine oceanography. Pretty Pond Bay (N.C.) Olin-Tatum Millpond Bay (N.C.) Black Creek Bay (N.C.)

Summary	Three Carolina Bays--Pretty Pond Bay, 01 in-Tatum Millpond Bay and Black Creek Bay--were examined to define the stratigraphy and quantify the characteristics of each sediment sequence contained in the bay. Each bay exhibits a different internal sediment or subsoil type: clayey, sandy, and organic. The depositional history of each bay is interpreted from the detailed stratigraphy of these different sediment types. Fine grained sediments exposed in the floor of Pretty Pond Bay, the clayey bay, do not represent a sequence of bay infill sediments confined to the topographic basin as in most previously studied bays. The muddy sands and sandy muds are part of a laterally extensive unit which extends in the subsurface outside the bay proper. The hydrologic characteristics, lateral extent, and bowl-like shape of this prebay unit helped initiate bay formation by facilitating the initial ponding of water in the depression. Pretty Pond Bay is being filled by lateral progradation of the sands which surround the bay into the bay proper atop the prebay sandy mud unit, 01 in-Tatum Millpond Bay, the sandy bay, and Black Creek Bay, the organic bay, have general bay fill stratigraphy similar to each other, although the latter is a really larger and was initially deeper. A fine-grained lacustrine unit, the initial unit of bay fill, is confined to the southeast portion of both bays. A more laterally extensive carbonaceous unit, which fills the remainder of the bay proper, is above this basal unit. The carbonaceous unit in Black Creek Bay is thicker and contains a greater percentage of organic material than in Olin-Taturn Millpond Bay where the thinner carbonaceous sediments are sandier. Sediments contained in Cl in-Tatum Millpond Bay and Black Creek Bay represent a gradient of sediment texture from sandy to organic. The thickness of the carbonaceous sediments preserved in the bays is the primary basis for delineation of the two textural types. Factors influencing the accumulation and preservation of the organic-rich sediments include hydrologic and basin morphometric parameters. Water depth in the basin, the primary hydrologic factor, is influenced by both the distance and the groundwater gradients from the bay to the nearest drainage, and by local dissection of the interstream divide where the bay is located. Initial basin depth and continuity of the bay boundary are important morphometric factors. The sediment types preserved in bays are related to their location with respect to geomorphic surfaces and the hydrologic and morphometric factors mentioned above. The bays in this study are situated on two different geomorphic surfaces within the Middle Coastal Plain province of south central North Carolina. Pretty Pond Bay, which normally contains water, occurs on the Coharie morphostratigraphic unit in Robeson County, whereas 01 in-Tatum Millpond Bay and Black Creek Bay occur atop an eolian surface which blankets much of the ancestral Cape Fear River Floodplain in Bladen County. In North Carolina, Pretty Pond Bay and other clayey bays are generally geographically limited to the Middle Coastal Plain province on the Brandywine and Coharie morphostratigraphic surfaces. Surficial sediments in these areas are often fine-grained sands with muddy layers. Thus the materials available for deposition as bay fill are fine-grained. Additionally, if shallow subsurface fine-grained sediments are laterally extensive they could act as a potential hydrologic barrier to initiate bay formation. The sandy and organic bays are more widespread in occurrence, although generally they are found on the sandier and lower geomorphic surfaces.
General note	Submitted to the faculty of the Department of Geology.
General note	Advisor: Charles Q. Brown
General note	Advisor: Lee J. Otte
Dissertation note	M.S. East Carolina University 1990
Bibliography note	Includes bibliographical references (leaves 129-136).
Genre/form	Academic theses.
Genre/form	Academic theses.
Genre/form	Thèses et écrits académiques.

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Substrate variability and internal sediments of three Carolina bays, South-Central Coastal Plain, North Carolina / by Charles L. Saunders, III.

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