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Dissertations / Theses on the topic 'Stable and clumped isotope'

Author: Grafiati

Published: 6 September 2023

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1

Methner, Katharina [Verfasser], Andreas [Gutachter] Mulch, and C. Page [Gutachter] Chamberlain. "Recovering Eocene paleotopography and paleoclimate of the North American Cordillera through integrated stable isotope and clumped isotope analyses / Katharina Methner ; Gutachter: Andreas Mulch, C. Page Chamberlain." Frankfurt am Main : Universitätsbibliothek Johann Christian Senckenberg, 2016. http://d-nb.info/1115250353/34.

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2

Li, Shanying. "Petrological and stable isotopic study of lacustrine and paleosol carbonates: Implications for paleoelevation and tectonic evolution of the Tibetan Plateau." Miami University / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=miami1461562459.

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3

Peral, Marion. "Calibration of the clumped-isotope thermometer in foraminifera and its application to paleoclimatic reconstructions of the mid-Pleistocene in the Gulf of Taranto." Thesis, Université Paris-Saclay (ComUE), 2018. http://www.theses.fr/2018SACLS382/document.

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Quantifier les variations de température océanique du passé est nécessaire pour comprendre les mécanismes qui régissent l’évolution climatique. Les méthodes de paléo-thermométrie classiques peuvent souffrir de limitation inhérente à l’écologie des organismes et/ou à cause de l’influence d'effets physico-chimiques (salinité, acidité de l’eau de mer…). Ce travail se focalise sur la technique de paléothermométrie Δ47, qui repose sur la mesure du « clumping isotopique » dans les carbonates. Il vise d’abord à établir une calibration appliquée aux foraminifères et ensuite à mettre en œuvre cette cal

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4

Guo, Weifu Blake Geoffrey A. Eiler John. "Carbonate clumped isotope thermometry : application to carbonaceous chondrites and effects of kinetic isotope fractionation /." Diss., Pasadena, Calif. : California Institute of Technology, 2009. http://resolver.caltech.edu/CaltechETD:etd-12182008-115035.

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5

Kirk, Ruth. "Development of clumped isotope techniques and their application to palaeoclimate studies." Thesis, University of East Anglia, 2017. https://ueaeprints.uea.ac.uk/63690/.

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The aims of this research were to firstly help development of clumped isotope measurements of carbonate samples at UEA, and to then explore whether the technique could be used to retrieve robust environmental signals from geological material. This specifically looks at the Hirnantian glaciation at the boundary between the Ordovician and Silurian periods. Using the MIRA instrument, it is possible to make high precision measurements to enable the assessment of Earth surface temperatures. Long term precision of standard material is comparable to existing studies. MIRA is also absent of any non-li

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6

Laycock, Adam John. "Stable isotope tracing of engineered nanoparticles." Thesis, Imperial College London, 2014. http://hdl.handle.net/10044/1/43853.

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Engineered nanoparticles (NPs) are increasingly being used in consumer products due to their novel properties. Consequently, concerns have been raised over the potential hazards that these materials may present as a result of their release into the natural environment. This has prompted numerous investigations into the environmental behavior, transport and fate of engineered NPs. Importantly the predicted environmental concentrations of these materials is often x10 to x100 lower than the natural background levels of the element. Many studies overcome this problem with the use of high dosing co

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7

Nelson, Michael Eric. "Nonactin biosynthesis : stable isotope precursor studies /." The Ohio State University, 2001. http://rave.ohiolink.edu/etdc/view?acc_num=osu1486399451962492.

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8

FRANZOI, ALESSANDRO. "ANIMAL ECOLOGY THROUGH STABLE ISOTOPE ANALYSIS." Doctoral thesis, Università degli studi di Pavia, 2016. http://hdl.handle.net/11571/1203350.

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Stable Isotope Ratios techniques raised in the last thirty years as a novel approach very useful for researchers and ecologists that intend to deepen into manifold aspects of animal ecology. In particular, isotopic ratios in animal tissues ultimately reflect diet, and the isotopic composition of diet reflects biogeochemical attributes of environments that may, in turn, show spatial structure and pattern, both at local and continental scale. Here, SIRs techniques were applied to birds, and, in particular, the stable isotope ratios of hydrogen, carbon, nitrogen, oxygen and sulfur were determined

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9

Howland, Mark Roger. "Compound-specific stable isotope investigations of the influence of diet on the stable isotope composition of body tissues." Thesis, University of Bristol, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.274604.

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10

Kaiser, Jan. "Stable isotope investigations of atmospheric nitrous oxide." [S.l. : s.n.], 2002. http://ArchiMeD.uni-mainz.de/pub/2003/0004/diss.pdf.

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11

Morante, Richard. "Permian-Triassic stable isotope stratigraphy of Australia." Phd thesis, Australia : Macquarie University, 1996. http://hdl.handle.net/1959.14/47568.

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"September, 1995"<br>Thesis (Ph.D.) -- Macquarie University, School of Earth Sciences, 1996.<br>Bibliography: leaves 171-183.<br>Introduction -- Australian ð¹³Corg-isotope profiles about the Permian-Triassic (P/TR) boundary -- Strontium isotope seawater curve in the late Permian of Australia -- ð¹³Cco₃ AND ð¹⁸Oco₃ seawater profiles through the Permian-Triassic of Australasia -- Paleomagnetic stratigraphy about the Permian/Triassic boundary in Australia -- Synthesis.<br>The Permian-Triassic boundary mass extinction is the largest in the Phanerozoic and therefore is the major event in the Phaner

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12

Broadmeadow, Mark. "Stable carbon isotope discrimination in forest canopies." Thesis, University of Newcastle Upon Tyne, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.386693.

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13

Volpe, Christopher Michael. "Stable chlorine isotope variations in the atmosphere /." Diss., Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 1998. http://wwwlib.umi.com/cr/ucsd/fullcit?p3035919.

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14

Cooney, Katherine Suzanne. "A stable isotope investigation of precipitation nitrate." College Park, Md. : University of Maryland, 2005. http://hdl.handle.net/1903/3000.

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Thesis (M.S.) -- University of Maryland, College Park, 2005.<br>Thesis research directed by: Dept. of Geology. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.

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15

Wombacher, Frank. "The stable isotope geochemistry and cosmochemistry of cadmium." [S.l. : s.n.], 2003. http://deposit.ddb.de/cgi-bin/dokserv?idn=967287685.

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16

Martin, G. M. "Globigerina bulloides : Preservation state and stable isotope variation." Thesis, University of Canterbury. Geology, 2001. http://hdl.handle.net/10092/6806.

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A 'preservation index' has been developed that enables selective population sampling of the planktic foraminiferal species Globigerina bulloides for geochemical and isotopic analyses. Specimens from deep-sea core horizons were separated into 5 grades, based on the degree of transparency exhibited under the transmitted light microscope (grade 1 = thick-walled, non-transparent tests, to grade 5 = thin-walled, entirely transparent tests). 'Preservation indices' were then derived for a down-hole sequence of 23 samples from deep-sea core SO 136-005 (Eastern Tasman Sea, 958m). These indices indicate

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17

Reidy, Lisa Jayne. "Stable isotope analysis : a new forensic science tool." Thesis, Queen's University Belfast, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.479310.

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18

Ek, Caroline. "Towards understanding stable isotope signatures in stressed systems." Doctoral thesis, Stockholms universitet, Institutionen för miljövetenskap och analytisk kemi, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-134967.

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Stable isotope analysis (SIA) is a valuable tool in ecotoxicology because δ13C and δ15N may provide insights into the trophic transfer of contaminants in a food web. The relationship between a species’ trophic position (TP, determined from δ15N) and internal concentration of biomagnifying contaminants can be established and used for regulatory purposes. However, the exposure of organisms to xenobiotics incurs physiological costs, and the stable isotope signature of a consumer reflects not only diet but also a physiological state. The latter raises questions regarding the interpretation of stab

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19

Diamond, Roger Edward. "Stable isotope hydrology of the Table Mountain group." Doctoral thesis, University of Cape Town, 2014. http://hdl.handle.net/11427/21190.

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Rain was collected from 2010 to 2012 at 15 locations around the Cape Fold Belt, at the same time as samples from rivers, springs, seeps and boreholes, totalling 435 samples. Precipitation ranged from -75 ‰ to +40 ‰ for δD and -12 ‰ to +8 ‰ for δ¹⁸O , showing seasonal patterns, with lower δ values in winter and higher in summer. Certain anomalous δ values can be attributed to individual weather events, such as thunderstorms. Using weighted data, the meteoric water line is δD = 6.15 δ¹⁸O + 8.21, which is similar to previous equations. The best fit line for groundwater δ values is δD = 7.09 δ¹⁸O

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20

Dyer, David Clifford. "Stable isotope ecology of South African kelp forests." Doctoral thesis, University of Cape Town, 2018. http://hdl.handle.net/11427/29601.

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Kelp forests are some of the most productive coastal ecosystems in the world and provide numerous ecosystem goods and services. Where they occur, they play a key role in coastal ecology and local fisheries. In South Africa, Ecklonia maxima and Laminaria pallida form kelp forests which support diverse ecological communities. The species composition of these communities has been shown to be spatially variable along the South African coast, controlled by abiotic processes and species interactions. Despite their importance in the southern Benguela Current Large Marine Ecosystem (BCLME), large-scal

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21

Young, Giles Hugh Findlay. "Stable isotope dendroclimatology at Forfjorddalen in northwestern Norway." Thesis, Swansea University, 2008. https://cronfa.swan.ac.uk/Record/cronfa42414.

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Climate change has become a key issue for the 21st century and producing future climatic scenarios has become a priority. However, to model future climate scenarios successfully and to understand their implications it is important to have a clear picture of past climate. Stable isotopes from tree rings may have the potential to reconstruct past climate at all temporal frequencies. This thesis presents a reconstruction of temperature (AD 1394- 2001) and precipitation (AD 1765-2001) from Forfjorddalen in northwest Norway based on and delta13C and delta18O, respectively. Tree cores were dated and

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22

Kim, Moon Koo. "Stable carbon isotope ratio of polycyclic aromatic hydrocarbons (PAHs) in the environment: validation of isolation and stable carbon isotope analysis methods." Diss., Texas A&M University, 2004. http://hdl.handle.net/1969.1/1099.

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Polycyclic aromatic hydrocarbons (PAHs) are ubiquitous, toxic contaminants that are released to the environment from various petrogenic and pyrogenic sources. In an effort to more clearly identify and trace sources of PAHs in the environment, purification and compound specific isotope analysis methods were developed to accurately measure the stable carbon isotope ratio of individual PAHs. Development of the method included improving accuracy and precision of the isotopic measurement by producing highly pure extracts using various chromatographic techniques. The method was refined by improving

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23

Strand, Sarah Elise. "Stable Isotope Biogeochemistry of South Florida Coastal Marine Ecosystems." FIU Digital Commons, 2014. http://digitalcommons.fiu.edu/etd/1737.

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Southeast Florida’s continual urban expansion will potentially increase anthropogenic pollution in adjacent coastal marine systems. Furthermore, increased nutrient loads could have detrimental effects on the already threatened Florida Reef Tract. The present study uses a stable isotopic approach to determine the sources and the impact of nutrients on the Florida Reef Tract. δ13C and δ15N analysis of macroalgae, sponges, and sediment were analyzed in order to determine nutrient inputs in this region. While δ13C data did not display any significant trends spatially, δ15N values of the majority o

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24

Addison, Sarah Louise. "15N stable isotope probing of pulp and paper wastewaters." The University of Waikato, 2008. http://hdl.handle.net/10289/2399.

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Stable isotope probing (SIP) is an established technique that can be applied to identify the metabolically active micro-organisms within a microbial population. The SIP method utilises an isotopically-labelled substrate and PCR techniques to discern the members of a microbial community that incorporate the isotope into their DNA or RNA. The current literature gap around using 15N isotopes with RNA-SIP offers real potential and advantages for targeting and identifying active members from mixed communities involved in global biogeochemical nitrogen cycling. This study specifically investigated w

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25

Lock, C. M. "Stable isotope profiling of energetic materials and their precursors." Thesis, Queen's University Belfast, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.517100.

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26

Izzard, A. "Studies of vitamin C economy by stable isotope probes." Thesis, University of Cambridge, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.604981.

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The aim of the work described in this thesis was to evaluate the potential for using stable isotope <SUP>13</SUP>C labelled tracer, 1-<SUP>13</SUP>C -AA, in studies of AA kinetics in humans. To this end a method of measuring AA isotope enrichment in plasma samples using gas chromatography and mass spectrometry, (GC/MS), was developed. Derivatisation of AA was required for gas chromatographic separation, and the trimethylsilyl, (TMS), ether derivative, AA-tetra-TMS, was found to be the most compatible with subsequent mass spectrometric quantitation of isotope enrichment. A method was developed

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27

Hall, James Andrew. "Stable isotope methods for monitoring bioremediation of contaminated land." Thesis, Queen's University Belfast, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.322955.

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28

Vohra, Jyotsna. "Stable isotope probing : a tool in molecular microbial ecology." Thesis, University of Warwick, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.443622.

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29

MacDonald, Joanne. "Microstructure, crystallography and stable isotope composition of Crassostrea gigas." Thesis, University of Glasgow, 2011. http://theses.gla.ac.uk/2939/.

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Many marine molluscs produce complex shells of calcium carbonate. These shells are formed under strict biological control to provide a range of functions to ensure the survival of the living organism. These inspiring biomineral structures can also provide an archive of environmental change via proxies such as δ18O and δ13C within the shell carbonate. However, the intimate relationship between the biological and environmental controls influencing biomineral production can often obscure the environmental signal, making it difficult to interpret environmental information from shell proxies. Under

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30

Stevenson, Emily Isabel. "Stable strontium isotope fractionation in marine and terrestrial environments." Thesis, University of Oxford, 2012. http://ora.ox.ac.uk/objects/uuid:a2d97fc7-3e9d-484a-8026-11c118fcc3fd.

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The work reported in this thesis applies a new isotope tracer, stable strontium isotopes (δ<sup>88/86</sup>Sr), to address questions concerning changes in global climate that occur in response to continental weathering processes, and to constrain the modern marine geochemical Sr cycle. Stable Sr isotopes are a relatively new geochemical proxy, and as such their behavior needs to be understood in differing forms of marine calcium carbonate, the archives from which records of past stable Sr variability in the oceans can be constructed. Foraminifera, coccoliths and corals (both aragonite an

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31

Oskam, Charlotte. "Ancient DNA & stable isotope profiling of fossil eggshell." Thesis, Oskam, Charlotte (2012) Ancient DNA & stable isotope profiling of fossil eggshell. PhD thesis, Murdoch University, 2012. https://researchrepository.murdoch.edu.au/id/eprint/12744/.

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Eggshell is frequently encountered within palaeontological and archaeological deposits and due to various chemical and physical properties, it is highly valued as a substrate for geochronology, palaeodietary and palaeoecological applications. Despite the wellrecognised preservation of biomolecules in fossil eggshell, the substrate had never been evaluated for ancient DNA (aDNA) preservation. Herein, this thesis describes the first exploration involving the recovery and characterisation of aDNA from fossil eggshell. The primary aim of this thesis research is to explore eggshell aDNA and how gen

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32

Anchukaitis, Kevin John. "A Stable Isotope Approach to Neotropical Cloud Forest Paleoclimatology." Diss., The University of Arizona, 2007. http://hdl.handle.net/10150/195637.

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Many tropical trees do not form reliable annual growth rings, making it a challenge to develop tree-ring width chronologies for application to paleoclimatology in these regions. Here, I seek to establish high-resolution proxy climate records from trees without rings from the Monteverde Cloud Forest in Costa Rica using stable isotope dendroclimatology. Neotropical cloud forest ecosystems are associated with a relatively narrow range of geographic and hydroclimatic conditions, and are potentially sensitive to climate variability and change at time scales from annual to centennial and longer. My

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33

Keck, Lothar. "Climate significance of stable isotope records from Alpine ice cores." [S.l. : s.n.], 2001. http://deposit.ddb.de/cgi-bin/dokserv?idn=963598708.

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34

Guiry, Eric. "Tracing colonial animal trade and husbandry using stable isotope analyses." Thesis, University of British Columbia, 2016. http://hdl.handle.net/2429/59276.

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Domestic animals, particularly cattle and pigs, were a cornerstone of European colonial projects around the globe (ca. 1500-1900 AD). Livestock husbandry and trade provided not only a source of food, labour, and raw materials for daily life, but also held symbolic significance as a factor in establishing colonial group identity. This dissertation uses stable isotope analyses to reconstruct domestic animal trade and husbandry practices associated with the global expansion of European colonial activities into the New World between the seventeenth and nineteenth centuries. Research has been divid

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35

Cooper, Catherine Grace. "Exploring human dietary variation through stable isotope analysis of hair." Thesis, University of British Columbia, 2017. http://hdl.handle.net/2429/61210.

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This thesis explores the use of carbon, nitrogen and sulphur stable isotope analysis of modern and archaeological human hair as an indicator of human diets. The thesis is focused around three distinct research projects, two on modern, living humans and one on an archaeological population. The first project focuses on dietary variation among different populations in modern Ethiopia that share the same resource base but follow different economic and subsistence patterns. This research shows that economic and cultural patterns can cause very distinct and significant differences in diet amon

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36

North, Jessica C., and n/a. "Stable isotope tracers of landfill leachate impacts on aquatic systems." University of Otago. Department of Chemistry, 2006. http://adt.otago.ac.nz./public/adt-NZDU20070504.144317.

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The present study aimed to determine whether stable isotope techniques can be universally applied to detect landfill leachate contamination in aquatic systems. Results of analysis of ��C in dissolved inorganic carbon ([delta]��C-DIC), deuterium and �⁸O in water ([delta]D-H₂O and [delta]�⁸O-H₂O), and �⁵N of dissolved inorganic nitrogen components ([delta]�⁵N-NH₄⁺ and [delta]�⁵N-NO₃⁻) were presented for leachate, surface, and ground water samples collected from seven landfills located throughout New Zealand between 2003 and 2006. The unique conditions within a landfill lead to measurable fractio

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37

Benbow, Timothy J., and n/a. "Developing compound-specific stable isotope tools for monitoring landfill leachate." University of Otago. Department of Chemistry, 2008. http://adt.otago.ac.nz./public/adt-NZDU20080314.111826.

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This thesis has developed a suite of compound specific stable isotope tools to monitor landfill leachate and identify the infiltration of leachate to ground water and surface water. These tools have the power to indicate the fractional contribution multiple discrete sources of pollution are making to a single location. This journey began by developing two solid phase extraction (SPE) methods to extract non-polar and polar organic compounds from leachate with minimal fractionation of hydrogen or carbon isotopes. Non-polar compounds were successfully extracted using ENV+ SPE cartridges and polar

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38

Eimers, M. Catherine. "A stable isotope approach to investigate cadmium bioavailability from sediment." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape17/PQDD_0010/MQ30212.pdf.

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39

Eek, Magnus. "Environmental control of stable carbon isotope systematics in Emiliania huxleyi." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape2/PQDD_0017/NQ52759.pdf.

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40

Brown, Andrea J. "Endogenous decay sustaining PCE degradation and associated stable isotope effects." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape4/PQDD_0018/MQ53370.pdf.

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41

Bedaso, Zelalem K. "Stable Isotope Studies of Paleoenvironment and Paleoclimate from Afar, Ethiopia." Scholar Commons, 2011. http://scholarcommons.usf.edu/etd/3004.

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ABSTRACT The sedimentary deposits of the Hadar Formation at Dikika and the Mount Galili Formation at Galili preserve a wealth of paleoenvironmental and paleoclimatic records spanning the last 5.29 Ma. Stable carbon and oxygen isotopic compositions of herbivore tooth enamel were analyzed for more than 600 specimens of 15 different taxa from 10 stratigraphic intervals. The application of carbon and oxygen isotopes here aims principally at reconstructing shifts in the relative abundance of C4 grasses, and its implications for climate indicators including temperature, aridity, and seasonality. The

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42

Lamb, Clare. "Stable carbon isotope variation during natural chloromethane and bromomethane production." Thesis, Queen's University Belfast, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.343035.

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43

Loader, Neil J. "The stable isotope dendroclimatology of Pinus sylvestris from Northern Britain." Thesis, University of Cambridge, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.390043.

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44

Thomas, Katherine S. S. M. Massachusetts Institute of Technology. "Organic geochemistry and stable isotope constraints on Precambrian biogeochemical processes." Thesis, Massachusetts Institute of Technology, 2011. http://hdl.handle.net/1721.1/69474.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, 2011.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 91-101).<br>Details of the biogeochemical cycles and the dominant mechanisms present in Precambrian remain heavily debated topics. The events of the Late Proterozoic onset to glaciations and what types of early life existed in the Archean are two of the many provoking topics within the Precambrian. We set out to improve the understanding of these geologic intervals by examining stable isotopic signat

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45

Tayasu, Ichiro. "Nutritional ecology of termite-symbionts system using stable isotope techniques." 京都大学 (Kyoto University), 1997. http://hdl.handle.net/2433/64948.

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46

Shahar, Anat. "Non-traditional stable isotope fractionation mechanisms from dust to planets /." Diss., Restricted to subscribing institutions, 2008. http://proquest.umi.com/pqdweb?did=1666911651&sid=1&Fmt=2&clientId=1564&RQT=309&VName=PQD.

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47

Reich, Kimberly Jeanne. "Sea turtle life history patterns revealed through stable isotope analyses." [Gainesville, Fla.] : University of Florida, 2009. http://purl.fcla.edu/fcla/etd/UFE0024416.

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48

Lamonica, Giulia. "Stable isotope tracers to estimate lung surfactant metabolism in vivo." Doctoral thesis, Università degli studi di Padova, 2013. http://hdl.handle.net/11577/3423360.

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Aim of this thesis was to apply the stable isotopes technique to study pulmonary surfactant kinetics. Lung surfactant is essential to live, because it prevents the alveoli to collapse during normal breathing. Lung surfactant is composed of lipids and specific proteins, and nowadays it is well known that alterations on the composition and amount of surfactant are involved in acute and chronic lung diseases. This work presents two studies about lung surfactant kinetics. The first one is about the synthesis of disaturated phosphatidylcholine, the main lipid in the pulmonary surfactant system,

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49

Kelly, Simon Douglas. "The development of continuous-flow isotope ratio mass spectrometry methods and their application to the detection of food adulteration." Thesis, University of East Anglia, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.251500.

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50

Nordhoff, Peter. "Stable isotope investigations on speleothems from different cave systems in Germany." Doctoral thesis, [S.l.] : [s.n.], 2005. http://webdoc.sub.gwdg.de/diss/2005/nordhoff.

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