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assessing the paleoshelf environment and depositional setting at Medford, New Jersey during the Paleocene-Eocene thermal maximum support for an Appalachian Amazon
Name (type = personal)
NamePart (type = family)
Podrecca
NamePart (type = given)
Luca
NamePart (type = date)
1990-
DisplayForm
Luca Podrecca
Role
RoleTerm (authority = RULIB)
author
Name (type = personal)
NamePart (type = family)
Mountain
NamePart (type = given)
Gregory
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Gregory Mountain
Affiliation
Advisory Committee
Role
RoleTerm (authority = RULIB)
chair
Name (type = personal)
NamePart (type = family)
Miller
NamePart (type = given)
Kenneth G
DisplayForm
Kenneth G Miller
Affiliation
Advisory Committee
Role
RoleTerm (authority = RULIB)
internal member
Name (type = personal)
NamePart (type = family)
Wright
NamePart (type = given)
James D
DisplayForm
James D Wright
Affiliation
Advisory Committee
Role
RoleTerm (authority = RULIB)
internal member
Name (type = personal)
NamePart (type = family)
Browning
NamePart (type = given)
James V
DisplayForm
James V Browning
Affiliation
Advisory Committee
Role
RoleTerm (authority = RULIB)
internal member
Name (type = corporate)
NamePart
Rutgers University
Role
RoleTerm (authority = RULIB)
degree grantor
Name (type = corporate)
NamePart
School of Graduate Studies
Role
RoleTerm (authority = RULIB)
school
TypeOfResource
Text
Genre (authority = marcgt)
theses
OriginInfo
DateCreated (qualifier = exact)
2019
DateOther (qualifier = exact); (type = degree)
2019-01
CopyrightDate (encoding = w3cdtf)
2019
Place
PlaceTerm (type = code)
xx
Language
LanguageTerm (authority = ISO639-2b); (type = code)
eng
Abstract (type = abstract)
The Paleocene/Eocene boundary and attendant Paleocene-Eocene Thermal Maximum (PETM) marks a time of rapid global climatic change. New Jersey shelf sediments of the Marlboro Formation record the PETM with exceptionally thick preservation (up to ~15 m at Wilson Lake) during the period of global low carbon isotopic values (“the core”) which requires minimum sedimentation rates near 10 cm/kyr. Rhythmic layers have previously been reported from both Wilson Lake & Millville, NJ (IODP Leg 174AX). These structures, dubbed ‘couplets’, consist of semi-periodic, 1-2 mm thick, raised laminations separated by typically homogenous sediment layers of varying width averaging 1.27 cm at Medford as opposed to nearly 2 cm at Wilson Lake and Millville. Previous studies have dismissed these structures as artifacts ('drilling biscuits’) produced by drilling mud.
I report here on a series of shallow (<65 ft; ~19.81 m) auger cores drilled without using drilling fluid along a downdip transect at Medford, NJ. These cores show similar couplets on the ~1 - 2 cm scale, indicating that they are in fact primary depositional features. The mm-width laminae in the auger cores experienced remarkable swelling within minutes of splitting. XRD, XRF, bulk carbonate geochemistry, and grain size analysis were measured throughout the Medford auger cores. I analyzed differences in these parameters between the laminae and interspersing bulk material, and then made comparisons with data collected at other sites along the New Jersey Coastal Plain (NJCP). I find no uniform discernible difference in lithology between laminae and beds, other than a higher percentage of kaolinite in some laminae.
In general, the Marlboro Formation at this updip location consists of micaceous, lignitic, silty clay (mean size < 2 m) with occasional organic debris indicating proximal deposition in a prodelta setting. A paleodepth of ~40 m is estimated from a paleoslope model and normal marine salinities are inferred from the presence of common, though not abundant, planktonic foraminifera. I propose a model of deposition for the Marlboro Formation as being driven by fluid mud (near-bed suspension flows) transport associated with the “Appalachian Amazon”, implying that the extremely fine-grained Marlboro Clay was deposited at Medford as part of a sigmoidal shaped subaqueous clinoform. The clinoform model explains the differential preservation of the Vincentown Formation, transitional units, and the CIE onset, “core”, recovery, and overlying units along a dip transect across the paleoshelf. The laminations discussed here have analogs in modern environments characterized by muddy continental shelves and are associated with episodic or possibly quasi seasonal events of increased riverine discharge and the attendant migration of the benthic salinity front.
Subject (authority = RUETD)
Topic
Geological Sciences
Subject (authority = ETD-LCSH)
Topic
Paleocene-Eocene thermal maximum
Subject (authority = ETD-LCSH)
Topic
Sedimentation and deposition--New Jersey
RelatedItem (type = host)
TitleInfo
Title
Rutgers University Electronic Theses and Dissertations
Identifier (type = RULIB)
ETD
Identifier
ETD_9486
PhysicalDescription
Form (authority = gmd)
electronic resource
InternetMediaType
application/pdf
InternetMediaType
text/xml
Extent
1 online resource (87 pages) : illustrations
Note (type = degree)
M.S.
Note (type = bibliography)
Includes bibliographical references
Note (type = statement of responsibility)
by Luca G. Podrecca
RelatedItem (type = host)
TitleInfo
Title
School of Graduate Studies Electronic Theses and Dissertations
Identifier (type = local)
rucore10001600001
Location
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NjNbRU
Identifier (type = doi)
doi:10.7282/t3-6wp4-n191
Genre (authority = ExL-Esploro)
ETD graduate
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RightsDeclaration (ID = rulibRdec0006)
The author owns the copyright to this work.
RightsHolder (type = personal)
Name
FamilyName
Podrecca
GivenName
Luca
Role
Copyright Holder
RightsEvent
Type
Permission or license
DateTime (encoding = w3cdtf); (qualifier = exact); (point = start)
2019-01-04 15:06:28
AssociatedEntity
Name
Luca Podrecca
Role
Copyright holder
Affiliation
Rutgers University. School of Graduate Studies
AssociatedObject
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License
Name
Author Agreement License
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I hereby grant to the Rutgers University Libraries and to my school the non-exclusive right to archive, reproduce and distribute my thesis or dissertation, in whole or in part, and/or my abstract, in whole or in part, in and from an electronic format, subject to the release date subsequently stipulated in this submittal form and approved by my school. I represent and stipulate that the thesis or dissertation and its abstract are my original work, that they do not infringe or violate any rights of others, and that I make these grants as the sole owner of the rights to my thesis or dissertation and its abstract. I represent that I have obtained written permissions, when necessary, from the owner(s) of each third party copyrighted matter to be included in my thesis or dissertation and will supply copies of such upon request by my school. I acknowledge that RU ETD and my school will not distribute my thesis or dissertation or its abstract if, in their reasonable judgment, they believe all such rights have not been secured. I acknowledge that I retain ownership rights to the copyright of my work. I also retain the right to use all or part of this thesis or dissertation in future works, such as articles or books.
Copyright
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Copyright protected
Availability
Status
Open
Reason
Permission or license
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2019-01-17T15:40:38
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2019-01-17T15:40:38
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