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Tesi sul tema "Paleoclimatology"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 25 luglio 2025

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1

Griffin, Richard Daniel. "North American Monsoon Paleoclimatology From Tree Rings." Diss., The University of Arizona, 2013. http://hdl.handle.net/10150/301558.

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The North American monsoon is central to Southwestern climate and is a research focus in climatology. Of the various monsoon paleoclimate proxies, precisely dated and seasonally resolved tree-ring records offer unique opportunity for contextualizing modern instrumental observations and climate model projections. Focused on latewood, the dark-colored sub-annual component of conifer tree rings that forms in the late growing season, this dissertation research represents a systematic effort to diagnose the tree-growth response to monsoon climate, to develop a replicated network of monsoon-sensitiv

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2

Cisneros, Bermejo Mercè. "Reconstrucció climàtica dels darrers 2.700 anys a la Mediterrània occidental: sediments marins i estalagmites." Doctoral thesis, Universitat de Barcelona, 2019. http://hdl.handle.net/10803/668453.

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Donada l’alta sensibilitat de la regió central de la Mediterrània occidental a la variabilitat climàtica, s’han reconstruït les condicions de la mar superficials i profundes així com de les atmosfèriques pels darrers 2.700 anys. Les condicions marines han estat reconstruïdes a partir de multi-testimonis de sediment del nord de Menorca i les condicions atmosfèriques (hidroclimàtiques) en base a cinc registres d’espeleotemes de dues coves de Mallorca. La integració de la informació derivada d’aquests dos tipus d’arxius ha permès un millor enteniment de la interacció entre la mar superficial i pr

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3

Maier, Éder Leandro Bayer. "Relações espaço-temporais entre dados paleoclimáticos do Nevado Illimani (Bolívia) e a precipitação na América do Sul." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2014. http://hdl.handle.net/10183/94677.

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Este trabalho investiga a possibilidade de reconstruir a variabilidade da precipitação pretérita na América do Sul a partir de uma série temporal de razão isotópica de oxigênio (δ18O) em um testemunho de gelo obtido na Bolívia, para isso é analisado as relações espaço-temporais entre a precipitação sobre a América do Sul e a série do δ18O. Utilizou-se dados do δ18O dos primeiros 50 metros do testemunho de gelo do Nevado Illimani (6.350 m, 16º37’S, 67º46’W) e totais mensais da precipitação coletada em 890 estações meteorológicas sobre o continente sul-americano no período 1979–2008. As amostras

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4

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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5

Serefiddin, Feride Schwarcz H. P. "Paleoclimate models for western North America as inferred from speleothem isotope records /." *McMaster only, 2003.

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6

Wilhelms, Frank. "Messung dielektrischer Eigenschaften polarer Eiskerne = Measuring the dielectric properties of polar ice cores /." Bremerhaven : Alfred-Wegener-Institut für Polar- und Meeresforschung, 2000. http://www.gbv.de/dms/bs/toc/319750515.pdf.

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7

Dibenedetto, Joseph Nicholas. "Paleoclimatological implications of fossil tortoise bones." To access this resource online via ProQuest Dissertations and Theses @ UTEP, 2008. http://0-proquest.umi.com.lib.utep.edu/login?COPT=REJTPTU0YmImSU5UPTAmVkVSPTI=&clientId=2515.

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8

Sandau, Stephen D. "The Paleoclimate and Paleoecology of a Uintan (Late Middle Eocene) flora and fauna from the Uinta Basin, Utah /." Diss., CLICK HERE for online access, 2005. http://contentdm.lib.byu.edu/ETD/image/etd719.pdf.

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9

Minckley, Thomas A. "Holocene environmental history of the northwestern Great Basin and the analysis of modern pollen analogues in western North America /." view abstract or download file of text, 2003. http://wwwlib.umi.com/cr/uoregon/fullcit?p3113019.

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Abstract (sommario):

Thesis (Ph. D.)--University of Oregon, 2003.<br>Typescript. Includes vita and abstract. Includes bibliographical references (leaves 294-310). Also available for download via the World Wide Web; free to University of Oregon users.

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10

Rubio, de Inglés María Jesús. "Late Holocene Climate Variability in the North Atlantic based on biomarker reconstruction: The lake Azul (São Miguel, Azores archipielago) case." Doctoral thesis, Universitat de Barcelona, 2016. http://hdl.handle.net/10803/402145.

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The principal objective of this PhD thesis is to obtain a high resolution reconstruction of the climate (temperature and precipitation) in the north Atlantic for the late Holocene. This new reconstruction is from a sedimentary lacustrine record located in Azores (Lake Azul) that has been compared and discussing with principal other climate reconstructions published on the North Atlantic region. Climate in the North Atlantic is modulated by the conjunction of atmospheric patterns and ocean dynamics. The main atmospheric pattern is the North Atlantic Oscillation (NAO) but, other climatic modes s

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11

Tarbet, Melissa Eileen Schlegel. "Evaluation of paleo-climate for the Boise area, Idaho, from the last glacial maximum to the present based on delta 2H and delta 18O groundwater composition /." Diss., CLICK HERE for online access, 2005. http://contentdm.lib.byu.edu/ETD/image/etd829.pdf.

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12

He, Yuxin, and 何毓新. "Biomarker based holocene climatic reconstruction in Northwestern China." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2014. http://hdl.handle.net/10722/197088.

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Holocene hydrological changes in regions influenced by the mid-latitude westerly and the tropical/subtropical Asian monsoon differ from each other. The arid/semi-arid northeastern Tibetan Plateau, lying in between, is very sensitive to climatic changes. It thus becomes a climatologically important region to disentangle the interactions between the two circulations. Yet, limited high-quality Holocene paleoclimatic reconstructions are available in this region. This thesis presents multi-biomarker proxy records from lakes in the Qaidam Basin on the northeastern Tibetan Plateau to investigate the

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13

Power, Mitchell J. "Recent and Holocene fire, climate, and vegetation linkages in the northern Rocky Mountains, USA /." view abstract or download file of text, 2006. http://proquest.umi.com/pqdweb?index=0&did=1232403871&SrchMode=1&sid=1&Fmt=2&VInst=PROD&VType=PQD&RQT=309&VName=PQD&TS=1180996482&clientId=11238.

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Abstract (sommario):

Thesis (Ph. D.)--University of Oregon, 2006.<br>Typescript. Includes vita and abstract. Includes appendices with Foy Lake pollen and charcoal data and fire atlas metadata. Includes bibliographical references (leaves 233-244). Also available for download via the World Wide Web; free to University of Oregon users.

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14

Truebe, Sarah Anne. "Past climate, modern caves, and future resource management in speleothem paleoclimatology." Thesis, The University of Arizona, 2016. http://pqdtopen.proquest.com/#viewpdf?dispub=10158145.

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<p> My research focuses on reconstructing past climate in southern Arizona using cave deposits called speleothems. However, this necessitates a broader perspective than simply a geochemical time series, and therefore, I also investigate modern cave systems using a combination of modeling and observational datasets. Finally, cave deposits are fundamentally non-renewable resources, and sampling for past climate reconstruction can be destructive, unlike other cave uses. My last investigation is focused on developing possible best practice recommendations for paleoclimate scientists and other cave

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15

Truebe, Sarah, and Sarah Truebe. "Past Climate, Modern Caves, and Future Resource Management in Speleothem Paleoclimatology." Diss., The University of Arizona, 2016. http://hdl.handle.net/10150/621105.

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Abstract (sommario):

My research focuses on reconstructing past climate in southern Arizona using cave deposits called speleothems. However, this necessitates a broader perspective than simply a geochemical time series, and therefore, I also investigate modern cave systems using a combination of modeling and observational datasets. Finally, cave deposits are fundamentally non-renewable resources, and sampling for past climate reconstruction can be destructive, unlike other cave uses. My last investigation is focused on developing possible best practice recommendations for paleoclimate scientists and other cave sta

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16

Blake, Bascombe Mitchel. "Carboniferous paleobotany and paleoclimatology of the central Appalachian Basin, West Virginia, U.S.A." Morgantown, W. Va. : [West Virginia University Libraries], 2009. http://hdl.handle.net/10450/10655.

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Thesis (Ph. D.)--West Virginia University, 2009.<br>Title from document title page. Document formatted into pages; contains xi, 240 p. : ill. (some col.), maps (some col.). Vita. Includes abstract. Includes bibliographical references.

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17

Hu, Feng Sheng. "An ecosystem approach to the study of late-Quaternary environmental change in southwestern Alaska /." Thesis, Connect to this title online; UW restricted, 1994. http://hdl.handle.net/1773/5577.

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18

Nelson, Nathan Alfred. "Holocene fire and climate in rangeland ecosystems of Southwestern Idaho." [Boise, Idaho] : Boise State University, 2009. http://scholarworks.boisestate.edu/td/24/.

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19

Brunelle-Daines, Andrea. "Holocene changes in fire, climate and vegetation in the northern Rocky Mountains of Idaho and western Montana /." view abstract or download file of text, 2002. http://wwwlib.umi.com/cr/uoregon/fullcit?p3061935.

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Abstract (sommario):

Thesis (Ph. D.)--University of Oregon, 2002.<br>Typescript. Includes vita and abstract. Includes bibliographical references (leaves 170-178). Also available for download via the World Wide Web; free to University of Oregon users.

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20

Winspear, Nigel Robert. "Environmental controls on late Quaternary aeolian sedimentation in the Salton Basin (California) and central Nebraska." Thesis, University of Reading, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.384964.

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21

Clayton, James Dominic. "Modelling climate change in the sub-tropical Bolivian Andes through the last glacial-interglacial transition, using glaciers and palaeolakes." Thesis, University of Aberdeen, 1998. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=217036.

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The aim of this thesis is to model climate change in the Bolivian Andes through the last glacial-interglacial cycle, using glaciers and palaeolakes. This is important because the extent and timing of glacier and palaeolake fluctuations in this area are poorly understood. Furthermore, determining the synchrony of glaciers and palaeolakes has direct implications for understanding the nature of palaeoclimatic change in this high altitude sub-tropical region during the last glacial-interglacial transition. The results of this study are directly applicable to general circulation models (GCMs) attem

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22

Peña, Rabadán Juan Carlos. "La reconstrucción de la dinámica fluvial y su conexión con la variabilidad climática a partir de fuentes documentales y registros instrumentales." Doctoral thesis, Universitat de Barcelona, 2016. http://hdl.handle.net/10803/397713.

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El estudio analiza los posibles vínculos entre la frecuencia de inundaciones en Suiza con la actividad solar (forzamiento exógeno), erupciones volcánicas, la variabilidad del clima y la dinámica del Atlántico Norte (forzamiento endógeno) durante los dos últimos siglos. La variabilidad de las inundaciones en Suiza para el periodo 1800-2010 se ha determinado a partir de un índice de verano de daños por inundaciones (INU). El índice considera inundaciones graves y catastróficas a partir de los inventarios existentes, que resume tanto la gravedad del evento y su extensión espacial. Se ha puesto es

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23

Sánchez, López Giomar. "North Atlantic Oscillation imprints in the Central Iberian Peninsula for the last two millennia: from ordination analyses to the Bayesian approach." Doctoral thesis, Universitat de Barcelona, 2016. http://hdl.handle.net/10803/400758.

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The climate variability of the Iberian Peninsula (IP) can be explained in terms of relatively few large-scale atmospheric modes, such as the North Atlantic Oscillation (NAO), the East Atlantic (EA) and the Scandinavian (SCAND) patterns. The present-day IP climatology clearly show that the NAO is the most prominent mode, especially in winter. However, the recent investigations have highlighted that other climate modes play a key role in both modulating the NAO-climate relationship and controlling certain meteorological parameters, although little is known about the past evolution of these clima

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24

El, Ouahabi El Ghazi Anuar. "Estudi de molècules orgàniques fòssils per a la caracterització dels esdeveniments climàtics ocorreguts durant períodes glacials i interglacials." Doctoral thesis, Universitat de Barcelona, 2017. http://hdl.handle.net/10803/462851.

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Arribar a comprendre les causes i efectes dels canvis globals i les interaccions sinèrgiques del sistema climàtic continua sent un repte científic complex. Els informes del Panell Intergovernamental sobre el Canvi Climàtic (IPCC) han proporcionat avenços substancials en la comprensió del canvi climàtic. No obstant, es basen en l'extrapolació de les condicions actuals i s'hauria de tenir en compte que en el passat l'evolució natural del clima ha manifestat reorganitzacions importants. La matèria orgànica (MO) sedimentària està formada per una gran varietat de components, de diferents estructure

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25

Pérez, Zanón Nuria. "Climate analysis in the central Pyrenees from instrumental and paleoclimate proxy data." Doctoral thesis, Universitat Rovira i Virgili, 2017. http://hdl.handle.net/10803/461050.

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Es presenten les sèries termopluviomètriques que caracteritzen el clima del Pirineu central durant el període instrumental, que han permès la caracterització de la deriva climàtica durant el darrer segle. A més a més, aquestes series han estat utilitzades per realitzar anàlisis dels registres naturals capaços de capturar la senyal climàtica durant els últims 500 anys. Aquestes sèries termopluviomètriques han estat obtingudes a partir de dades observades in-situ (tant amb observatoris manuals com automàtics) durant el període instrumental 1910–2013 tractant-se de les sèries de temperatura i pre

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26

Alves, Daniel Pavani Vicente. "Análise sismoestratigráfica das bacias de Barreirinhas e do Ceará como ferramenta para estudos paleoceanográficos no Cenozoico na Margem Equatorial Brasileira." Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/21/21136/tde-28062018-162619/.

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A Margem Equatorial Brasileira (MEB) é uma área de extrema importância para os estudos paleoceanográficos e paleoclimáticos do Atlântico Equatorial, mas que ainda possui um vasto campo para pesquisa. Este trabalho visa aprimorar a compreensão desta importante região, fornecendo uma interpretação paleoceanográfica para a evolução sedimentar das Bacias do Ceará e de Barreirinhas no Cenozoico, a partir de uma análise sismoestratigráfica. Foram analisadas linhas de sísmica multicanal e informações de poços de exploração petrolífera para a construção de um modelo de evolução deposicional para as du

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27

McInnis, Heather E. "Middle Holocene culture and climate on the south coast of Peru : archaeological investigation of the Pampa Colorada /." view abstract or download file of text, 2006. http://proquest.umi.com/pqdweb?did=1196396921&sid=1&Fmt=2&clientId=11238&RQT=309&VName=PQD.

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Abstract (sommario):

Thesis (Ph. D.)--University of Oregon, 2006.<br>Typescript. Includes vita and abstract. Includes bibliographical references (leaves 729-756). Also available for download via the World Wide Web; free to University of Oregon users.

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28

Osterberg, Erich Christian. "North Pacific Late Holocene Climate Variability and Atmospheric Composition." Fogler Library, University of Maine, 2007. http://www.library.umaine.edu/theses/pdf/OsterbergEC2007.pdf.

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29

Grigg, Laurie Davis. "Millennial-scale vegetation and climate variations in the Pacific Northwest during the last glacial period (60,000-16,000 cal yr B.P.) /." view abstract or download file of text, 2000. http://wwwlib.umi.com/cr/uoregon/fullcit?p9998032.

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Abstract (sommario):

Thesis (Ph. D.)--University of Oregon, 2000.<br>Typescript. Includes vita and abstract. Includes bibliographical references (leaves 237-250). Also available for download via the World Wide Web; free to University of Oregon users.

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30

Lisiecki, Lorraine E. "Paleoclimate time series : new alignment and compositing techniques, a 5.3-MYR benthic [exponents] d18O stack, and analysis of Pliocene-Pleistocene climate transitions /." View online version; access limited to Brown University users, 2005. http://wwwlib.umi.com/dissertations/fullcit/3174639.

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31

Wright, Aaron M. "A low-frequency paleoclimatic reconstruction from the La Plata Mountains, Colorado and its implications for agricultural productivity in the Mesa Verde region." Online access for everyone, 2006. http://www.dissertations.wsu.edu/Thesis/Fall2006/a_wright_120806.pdf.

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32

Weirauch, Daniel R. "A high-resolution record of climate instability spanning ~1.0 million years across the mid-Pleistocene transition." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 131 p, 2007. http://proquest.umi.com/pqdweb?did=1472642111&sid=21&Fmt=2&clientId=8331&RQT=309&VName=PQD.

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33

Milne, Isla. "Climate and environmental change inferred from diatom communities in Lake Challa (Kenya-Tanzania)." Thesis, Kingston, Ont. : [s.n.], 2007. http://hdl.handle.net/1974/500.

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34

Seligman, Angela. "Oxygen and hydrogen investigation of volcanic rocks: Petrogenesis to paleoclimate." Thesis, University of Oregon, 2016. http://hdl.handle.net/1794/20547.

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Knowledge of the isotopic evolution of volcanic eruptions is essential to volcanologists, geochemists, and paleoclimatologists. I isotopically evaluate the evolution of magmas from their initial formation, to eruption, and then to their alteration during the diffusion of environmental waters into volcanic glass. I focus first on the formation and evolution of large, caldera-forming eruptions from both Gorely volcano in Kamchatka, Russia and 30–40 Ma caldera forming eruptions through Oregon in the United States of America. I utilize oxygen (δ18O), hafnium (εHf), strontium (87Sr/86Sr), and neody

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35

Torner, Perez Judit. "Paleoclimatic reconstruction of past interglacial periods and their transitions in the Iberian Peninsula and its surrounding seas = Reconstruccions paleoclimàtiques dels interglacials recents i les seves transicions a la Península Ibèrica i mars circumdants." Doctoral thesis, Universitat de Barcelona, 2020. http://hdl.handle.net/10803/672465.

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This study combines cave speleothems and marine sediments to gain an insight into the climate variability of the Iberian Peninsula (IP) and its surrounding seas associated with previous warm interglacial periods. In particular, it centres in the interglacials comprised within the Marine Isotopic Stages (MIS) 13, 11, 9, 7, and 5, and their associated transitions. The speleothems are used as archives for changes in atmospheric moisture availability by means of stable isotopes and Mg/Ca analysis. The studied speleothems correspond mostly from the Balearic Islands (Minorca and Mallorca) but also f

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36

Steig, Eric J. "Beryllium-10 in the Taylor Dome ice core : applications to Antarctic glaciology and paleoclimatology /." Thesis, Connect to this title online; UW restricted, 1996. http://hdl.handle.net/1773/6745.

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37

Hunter, Rebecca L. Halanych Kenneth M. "Phylogeography and population structure of Antarctic ophiuroids effects of life history, oceanography and paleoclimatology /." Auburn, Ala, 2009. http://hdl.handle.net/10415/1754.

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38

Margalef, Marrasé Olga. "The last 70 kyr of Rano Aroi (Easter island, 27ºS) peat record: New insights for the Central Pacific paleoclimatology." Doctoral thesis, Universitat de Barcelona, 2014. http://hdl.handle.net/10803/146186.

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The PhD entitled “Last 70kyr of Rano Aroi (Easter Island, 27ºS) peat record: New insights for Central Pacific paleoclimatology” presents an environmental and climate reconstruction of Easter Island during the last 70.000 years. To accomplish this purpose, two peat cores of 14 and 4 meters have been retrieved from the center and the margin of the Rano Aroi peatland. Facies description and age model allowed us to decipher that the peat started accumulating 70.000 years ago, what means that this is the oldest peat record recovered up to the moment over the Southern Pacific. To investigate changes

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39

Walsh, Megan Kathleen. "Natural and anthropogenic influences on the Holocene fire and vegetation history of the Willamette Valley, northwest Oregon and southwest Washington /." Connect to title online (Scholars' Bank) Connect to title online (ProQuest), 2008. http://hdl.handle.net/1794/9488.

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40

Chase, Geneva Erin. "Late-Glacial Climate as Inferred fom Chironomid Assemblages in Lake Sediments from Aroostook County, Northeastern Maine." Fogler Library, University of Maine, 2004. http://www.library.umaine.edu/theses/pdf/ChaseGE2004.pdf.

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41

Long, Colin James. "Holocene fire and vegetation history of the Oregon Coast Range, USA /." view abstract or download file of text, 2003. http://wwwlib.umi.com/cr/uoregon/fullcit?p3095260.

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Abstract (sommario):

Thesis (Ph. D.)--University of Oregon, 2003.<br>Typescript. Includes vita and abstract. Includes bibliographical references (leaves 255-270). Also available for download via the World Wide Web; free to University of Oregon users.

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42

Van, Beynen Philip Edward. "Investigations into the fluorescence of calcitic speleothems /." *McMaster only, 1998.

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43

Heine, Jan T. "Glacier advances at the Pleistocene/Holocene transition near Mount Rainier volcano, Cascade Range, USA /." Thesis, Connect to this title online; UW restricted, 1997. http://hdl.handle.net/1773/6748.

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44

Taylor, Meghan. "Continental-scale validation of the temperature signal in oxygen isotopes of Sphagnum cellulose and its application as a paleoclimate proxy." Laramie, Wyo. : University of Wyoming, 2008. http://proquest.umi.com/pqdweb?did=1597629811&sid=1&Fmt=2&clientId=18949&RQT=309&VName=PQD.

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45

Viens, Robert J. "Late Holocene climate change and calving glacier fluctuations along the southwestern margin of the Stikine Icefield, Alaska /." Thesis, Connect to this title online; UW restricted, 2001. http://hdl.handle.net/1773/6737.

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46

Isaza, Londoño Carolina. "Late Maastrichtian paleoclimatology and the paleobiology of Raceguembelina fructicosa, Contusotruncana contusa and Rugoglobigerina rugosa inferred from single specimen [delta]¹³C and [delta]¹⁸O data /." free to MU campus, to others for purchase, 2004. http://wwwlib.umi.com/cr/mo/fullcit?p1421145.

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47

Wohl, Ellen Eva. "Northern Australian paleofloods as paleoclimatic indicators." Diss., The University of Arizona, 1988. http://hdl.handle.net/10150/184418.

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Paleoflood data are restrictive reflections of climatic conditions, representing one component of a region's climate; high rainfall intensity storms. In regions with a fairly simplistic, uniform hydroclimatological setting (floods above a given magnitude threshold are caused by predominantly one type of atmospheric circulation pattern), the temporal distribution of floods reflects that of the causal circulation pattern. Slackwater-deposit-based paleoflood reconstructions for three rivers in northern Australia cover an aggregate of 1200 years. Slackwater deposits (SWD) are fine-grained sediment

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Rech, André Rodrigo 1985. "Walking through the flower fields = the role of time and space on the evolution of pollination strategies." [s.n.], 2014. http://repositorio.unicamp.br/jspui/handle/REPOSIP/315723.

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Orientadores: Marlies Sazima, Jeff Ollerton<br>Texto em português e inglês<br>Tese (doutorado) - Universidade Estadual de Campinas, Instituto de Biologia<br>Made available in DSpace on 2018-08-24T19:39:30Z (GMT). No. of bitstreams: 1 Rech_AndreRodrigo_D.pdf: 2738650 bytes, checksum: 6bf617833a57ef7d0a29fdcd8d4cd53b (MD5) Previous issue date: 2014<br>Resumo: Os padrões encontrados em ecologia são resultado de processos contemporâneos interagindo com uma longa história de contingência. No entanto, poucos estudos têm buscado entender o papel relativo de fatores contemporâneos e pretéritos sobre

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Spera, Amanda Mattosinhos. "Avaliação das condições paleoclimáticas e paleoceanográficas dos últimos 1500 anos na Plataforma Continental de São Sebastião (Sudeste do Brasil) através do uso de proxies geoquímicos." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/21/21137/tde-21022017-080216/.

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Proxies geoquímicos (n-alcanos, alquenonas, GDGTs, δ13C, Fe/Ca e Ti/Ca), obtidos em amostras de um testemunho sedimentar, foram utilizados para avaliar as mudanças paleoclimáticas e paleoceanográficas na região da Plataforma Continental de São Sebastião ao longo do Holoceno Tardio. O modelo de idade, obtido através da análise conjunta dos métodos de 210Pb e 14C, demonstrou que testemunho aqui estudado cobre os últimos 1500 anos. A avaliação dos marcadores terrígenos permitiu a identificação das mudanças na drenagem e erosão continental, as quais estão relacionadas às alterações no regime

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Li, Xiaoyun, and 李瀟云. "Late quaternary climate and sedimentary history derived from N-alkanes, alkenones and bulk organic carbon analyses in Fujian coast, China." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2014. http://hdl.handle.net/10722/207998.

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Late Quaternary is an important period for paleoclimate study due to the boom of human civilization and thus its influence on climate conditions of the present interglacial period. In this study, a 52 m long borehole was drilled in a coastal embayment of Fujian, China, within which a thick marine layer from 16.05 to 32.60 m is found. Bulk organic geochemical analyses, containing total organic carbon content (TOC), carbon isotope ratio (δ13C), alkenones and n-alkanes, were analyzed for the whole core. Organic carbon isotope ratios (δ13C) of the sediment layers vary between -22.1‰ and -32.9‰, wi

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