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Dissertations / Theses on the topic 'Phytoliths'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Hart, Thomas Chesley. "A stroll through the park evaluating the usefulness of phytolith and starch remains found on medieval sherds from Wicken, Northamptonshire, England /." Diss., Columbia, Mo. : University of Missouri-Columbia, 2007. http://hdl.handle.net/10355/5058.

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Thesis (M.A.)--University of Missouri-Columbia, 2007.<br>The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file (viewed on January 3, 2008) Includes bibliographical references.

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2

Tubb, Helen J. "Anatomical, developmental and physiological aspects of silica in wheat." Thesis, Oxford Brookes University, 1995. https://radar.brookes.ac.uk/radar/items/197165a2-c303-4a80-a9d2-93b8954f4e92/1.

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The major aims of this thesis were to study silica deposits in cereal inflorescences and wheat roots and investigate soluble/deposited silica partitioning and uptake of silica by wheat. The morphology of a particular phytolith (the papilla) from inflorescence bracts of 70 species from Triticum (wheat). Hordeum, Aegilops families and Secale cereale was analyzed. Using papilla pit number and/or diameter it is possible to distinguish between Hordeum sp. and Triticum sp., and between wheats of different ploidy levels. The root growth of T. aestivum was reduced by silica in the nutrient solution (S

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3

Blinnikov, Mikhail S. "Late-Pleistocene history of the Columbia Basin grassland based on phytolith records in loess /." view abstract or download file of text, 1999. http://wwwlib.umi.com/cr/uoregon/fullcit?p9948017.

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Thesis (Ph. D.)--University of Oregon, 1999.<br>Typescript. Includes vita and abstract. Includes bibliographical references (leaves 202-211). Also available for download from the Internet; free to University of Oregon users. Address: http://wwwlib.umi.com/cr/uoregon/fullcit?p9948017.

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4

Duncan, Neil Andrew. "At the edge of the Puna : archaeological test excavation and sampling for phytolith signatures of ancient corrals at Antibal, Peru /." free to MU campus, to others for purchase, 2003. http://wwwlib.umi.com/cr/mo/fullcit?p1418014.

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5

Gallaher, Kirsten S. L. "Reconstruction of late Holocene vegetation and climate of Hluhluwe Mfolozi area using phytoliths." Bachelor's thesis, University of Cape Town, 2010. http://hdl.handle.net/11427/26585.

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This study presents a phytolith record from a late Holocene sedimentary core from the Hluhluwe-iMfolozi area in northeastern KwaZulu-Natal. Radiocarbon dating showed the oldest sediments to be from 23 80 ± 40 BP. Phytoliths are present throughout the record. There was a high degree of unclassifiable phytoliths (>79% per sub-sample), but preliminary trends identified include a dominance of C₄ grasses throughout (Chloridoideae and Panicoideae; adapted to higher temperatures and greater insolation), and slightly more C₃ grasses (Pooideae; adapted to cooler temperatures and/or winter rainfall) tow

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6

Pomerantz, Solomon. "The prehistory of Madagascar : microbotanical and archaeological evidence from coastal and highland sites." Thesis, University of Oxford, 2017. https://ora.ox.ac.uk/objects/uuid:a0f536e8-9f1f-451b-b02d-cc9365ed3aba.

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Despite nearly one hundred years of archaeological and palaeoecological research in Madagascar, the human colonisation of the island remains poorly understood. Long- standing narratives of this colonisation described the arrival of Austronesian- speaking peoples by AD 400, eventually reaching the Central Highlands by the 12th century. The recent discovery of microlithic tools at the rockshelter of Lakaton'i Anja has radically disrupted conventional narratives for this colonisation by more than doubling the known period of Madagascar's human history, and questioning the presumed Austronesian or

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7

Watling, Jennifer Georgina. "Environmental impact of the pre-Columbian geoglyph builders of Western Amazonia." Thesis, University of Exeter, 2014. http://hdl.handle.net/10871/16386.

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A debate that has received much attention in recent years is the nature and scale of pre-Columbian impact in the Amazon lowlands. While the notion that Amazonia is a “pristine wilderness" has long been debunked, several papers have proposed that human impact in western regions was more sporadic and on a smaller scale than impacts in central and eastern regions, and that western Amazonia supported sparse pre-Columbian populations. The discovery of over 400 geometrically-patterned earthworks (geoglyphs) in the western Brazilian Amazon, which until recently lay under in-tact tropical forest, has

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8

Logan, Amanda Lee. "The application of phytolith and starch grain analysis to understanding formative period subsistence, ritual, and trade on the Taraco Pennisula, Highland Bolivia." Diss., Columbia, Mo. : University of Missouri-Columbia, 2006. http://hdl.handle.net/10355/4596.

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Thesis (M.A.)--University of Missouri-Columbia, 2006.<br>The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file (viewed on April 21, 2009) Includes bibliographical references.

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9

Taylor, Sam. "Reconstructing Historical Vegetation Cover in Otago, New Zealand, Using Multi-proxy Analysis of Peat Cores." Thesis, University of Canterbury. Geological Sciences, 2010. http://hdl.handle.net/10092/4206.

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This research has examined the historical vegetation of two Eastern Otago sites below the regional treeline, with the aim of addressing questions about the distribution and spread of native tussock grasslands prior to human arrival in New Zealand c. 800 yr BP. Pollen and phytolith (plant opaline silicate) proxies have been extracted from peat cores at Swampy Summit and Clarks Junction to provide a record of vegetation spanning the Holocene. Using multiple proxies and two sample sites has allowed for comparisons of the record of vegetation from within sites and between sites. A record of the mo

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10

Iriarte, José. "MID-HOLOCENE EMERGENT COMPLEXITY AND LANDSCAPE TRANSFORMATION: THE SOCIAL CONSTRUCTION OF EARLY FORMATIVE COMMUNITIES IN URUGUAY, LA PLATA BASIN." UKnowledge, 2003. http://uknowledge.uky.edu/gradschool_diss/243.

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This dissertation is a multidisciplinary study combining both archaeological andpaleoecological data to examine the rise of early Formative societies in Uruguay, La Plata Basin.It is contextualized within broader anthropological concerns related to the emergence of culturalcomplexity, the significance of ritual and public architecture in intermediate-level societies, andthe role of human-environment interactions during the mid-Holocene. This investigationgenerated the first Late Quaternary paleoclimatic record, based on pollen and phytolith analyses,documenting that the mid-Holocene (ca. 6,620

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Rocheford, MaryKathryn. "An early to middle Holocene carbon isotope and phytolith record from the Sac Valley Archaeological District, southwest Missouri." Thesis, University of Iowa, 2009. https://ir.uiowa.edu/etd/425.

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New pedologic, carbon isotope and phytolith analyses along with stratigraphic correlations to nearby archaeological sites record the spatial and temporal distribution of past vegetation patterns in the Sac Valley Archaeological District of southwest Missouri. Radiocarbon ages obtained from a soil core along Bear Creek, CB5, are related to those from Hajic et al. (1998, 2000) indicating that the CB5 location contains correlative middle Rodgers Shelter submember deposits. This relationship also indicates that sedimentation was approximately two times greater at the CB5 locality than at the Big E

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Rocheford, Mary Kathryn Bettis Elmer A. "An early to middle Holocene carbon isotope and phytolith record from the Sac Valley Archaeological District, southwest Missouri." [Iowa City, Iowa] : University of Iowa, 2009. http://ir.uiowa.edu/etd/425.

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13

Webb, Elizabeth A. "Stable isotopic compositions of silica phytoliths and plant water in grasses, implications for the study of paleoclimate." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape2/PQDD_0021/NQ58164.pdf.

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14

Madella, Marco. "Morphological analysis of phytoliths : a botanical tool for the interpretation of archaeological and geological sediments from Eurasia." Thesis, University of Cambridge, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.421361.

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15

Pasturel, Marine. "Pour une meilleure représentation de la diversité des biomes herbacés africains dans les modèles de végétation : apports des traits physionomiques, de l’indice de surface foliaire et des phytolithes de graminées." Thesis, Aix-Marseille, 2015. http://www.theses.fr/2015AIXM4316.

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Les biomes herbacés africains intertropicaux devraient faire face, dans un proche futur, à des changements drastiques. Les modèles dynamiques de végétation (DGVM) ont des difficultés à simuler les limites actuelles de ces biomes, notamment parce qu’ils ne prennent pas en compte la diversité des couverts herbacés en C4. Il est donc nécessaire de caractériser cette diversité floristique et physionomique afin qu’elle puisse être facilement prise en compte dans les DGVMs, et que les comparaisons modèle/données (phytolithes) soient possibles.Dans cet objectif, les traits physionomiques des graminée

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16

Buffington, Abigail Francesca. "Using Phytolith Assemblages to Detect a Pastoral Landscape in Neolithic Wādī Sanā, Yemen." The Ohio State University, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=osu1566227843382311.

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17

Sjöström, Jenny. "Late Holocene palaeoenvironmental reconstruction on a peat sequence from northeastern South Africa, using grass phytoliths as main proxy." Thesis, Stockholms universitet, Institutionen för naturgeografi och kvartärgeologi (INK), 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-91882.

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Contemporary a geographical imbalance of where palaeoclimatological studies have been undertaken exists, where the majority of palaeodata is based on studies from the northernhemisphere. Multiproxy analysis was performed on a peat core from Lydenburg, north-eastern Mpumalanga, covering the last 1.600 years. Proxy focus was put on fossil grassphytoliths. A general drying trend can be noted from AD 400 to 1000, followed by moremesic conditions around AD 1200. The increasingly mesic conditions were interrupted by asignificantly drier period between c. AD 1250 to 1350. This part of the Lydenburg s

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18

Hilbert, Lautaro Maximilian. "Investigating plant management in the Monte Castelo (Rondônia-Brazil) and Tucumã (Pará-Brazil) shell mound using phytoliths analysis." Thesis, University of Exeter, 2017. http://hdl.handle.net/10871/30060.

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Shell mound or sambaqui, as commonly named in Brazil, are anthropic intentional mound constructions made by complex hunter-gatherer fishing communities. Typically distributed along shorelines and inland regions of Brazil, these sites are arguably one of the earliest evidence of human presence in South America, with dates ranging from 910-660 to 10,179-9,708 cal. yr. B.P. As archaeobotanical investigations reported the presence of various plant resources in these sites, a debate that has received much attention in recent years is regarding the scale of which the shell mound builders managed the

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Boyadjian, Célia Helena Cezar. "Microfósseis contidos no cálculo dentário como evidência do uso de recursos vegetais nos sambaquis de Jabuticabeira II (SC) e Moraes (SP)." Universidade de São Paulo, 2007. http://www.teses.usp.br/teses/disponiveis/41/41131/tde-31012008-161121/.

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A análise de microfósseis vegetais é extremamente útil para a recuperação de informações acerca da utilização de plantas por grupo humanos do passado, especialmente em sítios arqueológicos em que os macro-restos botânicos são raros, como é o caso dos sambaquis. Estes micro-restos podem ser obtidos a partir de sedimento, coprólitos, utensílios de pedra ou cerâmica, assim como de cálculo dentário (tártaro). Durante a mastigação e a utilização dos dentes como ferramentas, micro partículas provenientes do alimento ou da matéria prima utilizada, como grãos de amido, fitólitos, fibras, ficam retidas

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20

Alves, Daiana Travassos. "Dark Earth plant management in the Lower Tapajos." Thesis, University of Exeter, 2017. http://hdl.handle.net/10871/34077.

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The highly fertile Amazonian Dark Earths (ADE) results from landscape transformations found in association with archaeological sites throughout Amazonia. In the Lower Tapajos region, ADEs are found in ancient Tapajó settlements dated to the Late Pre-Columbian period (AD 1000-1600). This research focuses on plant management associated with the regional formation of ADE. Three ADE sites are analysed for microbotanical remains. Phytolith and microcharcoal (< 125μm) from test pits and excavation profiles reveal diverse plant-use including food and non-food plants. Geochemical data indicated a var

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21

Novello, Alice. "Les phytolithes, marqueurs des environnements mio-pliocènes du Tchad. Reconstitution à partir du signal environnemental des phytolithes dans l'Afrique subsaharienne actuelle." Thesis, Poitiers, 2012. http://www.theses.fr/2012POIT2303/document.

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Ce mémoire présente l'étude du signal phytolithique de sédiments mio-pliocènes du Tchad(Afrique Centrale) datés entre 7-2 Ma, et contemporains des Homininés anciens Sahelanthropustchadensis et Australopithecus bahrelghazali. Une calibration de la relation plantes-phytolithes-solspour l'Afrique tropicale subsaharienne actuelle a d'abord été réalisée pour apprécier la signatureenvironnementale des phytolithes dans le registre fossile. L'analyse des assemblages phytolithiques de98 espèces de graminées (Poaceae) a permis d'élaborer trois nouveaux indices phytolithiques à partirde 43 types propres

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22

Pearce, Madison Natasha. "Laying the Foundation for a Fremont Phytolith Typology Using Select Plant Species Native to Utah County." BYU ScholarsArchive, 2017. https://scholarsarchive.byu.edu/etd/6648.

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Archaeobotanical evidences for the presence of wild plants at Fremont archaeological sites are numerous. However, little can be positively argued for why those plants are present, if they were used by site inhabitants, and how they were used. Additionally, there are likely several wild plants that were used but that do not appear in the archaeobotanical record as pollen or macrobotanicals, the two most commonly identified plant remains. I argue that it is possible to provide better interpretations for how and why the Fremont used plants by researching how their historic counterparts, the Goshu

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23

Rodríguez, Antón David. "Ocupación e impacto humano en la alta montaña durante la prehistoria. Un estudio arqueoambiental de Aigüestortes (8 – 4 ka cal BP) mediante el análisis de fitolitos." Doctoral thesis, Universitat Autònoma de Barcelona, 2020. http://hdl.handle.net/10803/669526.

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Aquesta tesi doctoral investiga sobre el poblamiento prehistòric a l’alta muntanya dels Pirineus catalans occidentals, més concretament, al Parc Nacional d’Aigüestortes i Estany de Sant Maurici (Lleida). En particular, aquest treball de recerca es distingeix per presentar una proposta metodològica innovadora, que contribueix a l’estudi de l’ocupació humana de les muntanyes durant el Neolític. La metodologia arqueològica desenvolupada s’adreça a la detecció de les activitats productives realitzades per les comunitats agroramaderes prehistòriques, la seva gestió ambiental i el seu impact

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Macedo, Rodrigo Santana. "Pedogênese e indicadores pedoarqueológicos em terra preta de índio no município de Iranduba - AM." Universidade de São Paulo, 2014. http://www.teses.usp.br/teses/disponiveis/11/11140/tde-14042014-164952/.

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Uma evidência contundente da ocupação pré-histórica na Amazônia são os solos de cor escura com material arqueológico, conhecidos regionalmente como Terra Preta de Índio (TPI). Apesar de amplamente estudados, alguns de seus atributos permanecem ainda pouco conhecidos, especialmente os micromorfológicos, mineralógicos e geoquímicos. Esses estudos podem identificar os processos envolvidos na gênese e evolução desses solos, e quando empregados em conjunto com estudos fitolíticos, podem auxiliar na elucidação das suas formas de uso pretéritas. O objetivo desse estudo foi obter uma aproximação da hi

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Morris, Lesley. "Combining Environmental History and Soil Phytolith Analysis at the City of Rocks National Reserve: Developing New Methods in Historical Ecology." DigitalCommons@USU, 2008. https://digitalcommons.usu.edu/etd/35.

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Historical ecology is an emerging and interdisciplinary field that seeks to explain the changes in ecosystems over time through a synthesis of information derived from human records and biological data. The methods in historical ecology cover a wide range of temporal and spatial scales. However, methods for the more recent past (about 200 years) are largely limited to the human archive and dendrochronological evidence which can be subject to human bias, limited in spatial extent or not appropriate for non-forested systems. There is a need to explore new methods by which biological data can be

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Raitz, Edenilson. "Coleção de referência de silicofitólitos da flora do Sudoeste do Paraná: subsídios para estudos paleoambientais." Universidade Estadual do Oeste do Parana, 2012. http://tede.unioeste.br:8080/tede/handle/tede/133.

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Made available in DSpace on 2017-05-12T14:42:50Z (GMT). No. of bitstreams: 1 Edenilson_Raitz_parte1.pdf: 6176309 bytes, checksum: 0b9b9558d2a9e917ab11d7d142d99d3e (MD5) Previous issue date: 2012-03-28<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>Phytoliths bodies are of amorphous silica (SiO2.nH20) produced during the vegetative cycle and plant death after the production can be incorporated into the soil/sediment, and may remain there for extended periods of time. For an analysis consistent fitolítica is necessary to compare the sets of phytoliths found in soil and the c

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Silva, Deyvis Willian da. "Caracterização paleoclimática do quaternário tardio em áreas planálticas do Estado do Paraná." Universidade Estadual de Ponta Grossa, 2018. http://tede2.uepg.br/jspui/handle/prefix/2672.

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Submitted by Angela Maria de Oliveira (amolivei@uepg.br) on 2018-11-14T19:00:02Z No. of bitstreams: 2 license_rdf: 811 bytes, checksum: e39d27027a6cc9cb039ad269a5db8e34 (MD5) Deyvis Willian.pdf: 3401576 bytes, checksum: a6d75e7142dc9d25810cea59f381554b (MD5)<br>Made available in DSpace on 2018-11-14T19:00:02Z (GMT). No. of bitstreams: 2 license_rdf: 811 bytes, checksum: e39d27027a6cc9cb039ad269a5db8e34 (MD5) Deyvis Willian.pdf: 3401576 bytes, checksum: a6d75e7142dc9d25810cea59f381554b (MD5) Previous issue date: 2018-09-14<br>Conselho Nacional de Desenvolvimento Científico e Tecnológico<br>Es

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Testé, Marc. "Histoire naturelle des phytolithes des basses-terres mayas : implication pour la reconstitution des Paléoenvironnements et des interactions sociétés-environnements." Thesis, Paris 1, 2020. http://www.theses.fr/2020PA01H023.

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Sous les latitudes tropicales, les phytolithes représentent un indicateur clé dans la reconstitution des paléoenvironnements. Pourtant, ils sont encore modestement utilisés dans les études sur les environnements passés des basses-terres mayas, et ce, en dépit du faible potentiel des autres bioindicateurs de la végétation. C’est dans ce contexte et au travers des riches archives sédimentaires du site archéologique de Naachtun et de ses alentours, que nous proposons une nouvelle approche permettant d’exploiter les avantages inhérents à ces microfossiles siliceux, pour l’étude des environnements

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Alexandre, Anne. "Phytolithes, interactions sol-plante et paléoenvironnements." Aix-Marseille 3, 1996. http://www.theses.fr/1996AIX30122.

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Les phytolithes sont des particules d'opale-a (sio#2 nh#2o) micrometriques qui precipitent dans et entre les cellules des tissus vegetaux vivants. Le but de ce travail a ete de developper l'etude des phytolithes afin de mieux contraindre la dynamique des sols et les reconstitutions paleoenvironnementales dans la zone intertropicale. Trois etudes sont presentees: 1) le cycle biogeochimique du silicium en foret dense (dimonika, congo) est estime. On montre que entre 2 et 7. 5% de l'apport au sol en silicium biogenique alimentent un pole phytolithique stable. Pour que le systeme soit maintenu a l

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Fraysse, Fabrice. "Cycle biogéochimique du silicium dans les environnements superficiels continentaux : Impact des plantes terrestres." Phd thesis, Université Paul Sabatier - Toulouse III, 2007. http://tel.archives-ouvertes.fr/tel-00179740.

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Cette étude expérimentale a consisté dans un premier temps en la caractérisation de la réactivité et des propriétés physico-chimiques de microparticules d'opales biogènes appelées phytolithes, pour plusieurs espèces de plantes terrestres provenant de milieux différents. Pour ce faire, une approche combinant plusieurs techniques complémentaires telles que, mesures de solubilité, cinétiques de dissolution, mesures électrophorétiques et titrages acido-basiques, a été menée sur ces phytolithes ce qui a permis de mieux quantifier le cycle biogéochimique du silicium (Si) à travers les plantes terres

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Esteban, Alamá Irene. "Reconstructing past vegetation and modern human foraging strategies on the south coast of South Africa." Doctoral thesis, Universitat de Barcelona, 2016. http://hdl.handle.net/10803/401426.

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The importance of South Africa lies in the many caves and rock shelters containing well preserved evidence of human activity, cultural material complexity and a growing number of early modern human fossils dating to the Middle Stone Age (MSA). South Africa also hosts the world's smallest floral kingdom, now called the Greater Cape Floristic Region (GCFR), with high species richness and endemism. We use phytoliths –amorphous silica particles that formed in epidermal cells of plants–in order to study the evolution of plant exploitation strategies by first modern humans and to understand the r

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Wilbur, Cricket C. "A History of Place: Using Phytolith Analysis to Discern Holocene Vegetation Change on Sanak Island, Western Gulf of Alaska." Antioch University / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=antioch1395927847.

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Hughes, Matthew William. "Late Quaternary Landscape Evolution and Environmental Change in Charwell Basin, South Island, New Zealand." Phd thesis, Lincoln University. Agriculture and Life Sciences Division, 2008. http://theses.lincoln.ac.nz/public/adt-NZLIU20080214.132530/.

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Charwell Basin is a 6 km-wide structural depression situated at the boundary between the axial ranges and faulted and folded Marlborough Fault Zone of north-eastern South Island, New Zealand. The basin contains the piedmont reach of the Charwell River, and a series of late Quaternary loess-mantled alluvial terraces and terrace remnants that have been uplifted and translocated from their sediment source due to strike-slip motion along the Hope Fault which bounds the basin to its immediate north. The aim of this study was to provide an interdisciplinary, integrated and holistic analysis of late

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Calegari, Márcia Regina. "Ocorrência e significado paleoambiental do Horizonte A húmico em Latossolos." Universidade de São Paulo, 2009. http://www.teses.usp.br/teses/disponiveis/11/11140/tde-11032009-093135/.

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A ocorrência de solos com horizonte A húmico (Ah) hiperdesenvolvido ainda é pouco entendida. Nos Latossolos com esse horizonte (Lh) ele freqüentemente é muito espesso, com baixa saturação por bases e cor escura advinda do relativamente grande acúmulo de matéria orgânica até profundidades superiores a 100 cm. Exceto para a região Sul, tais atributos estão em desconformidade com as atuais condições de clima e vegetação em que esses Lh se encontram. Objetivou-se definir variáveis ambientais que teriam influenciado na gênese desse horizonte em Latossolos, investigando-se dados de morfologia, textu

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Roshan, Paladugu. "Interdisciplinary study of the dental calculus in skeleton remains from the cemetery of Santa Maria do Olival (Tomar, Portugal) 15th to 16th century A.D." Master's thesis, Universidade de Évora, 2018. http://hdl.handle.net/10174/25590.

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14 humans and 6 faunal dental calculus samples from the medieval necropolis of Santa Maria do Olival, Tomar were selected for microdebris, isotopes, trace elements and organic residues analyses. The major aim of the study was to setup methods for analysis of dental calculus to complement information from bones and teeth. The isotopic values from dental calculi of humans and fauna were comparable to those from bone collagen and led to similar conclusions on dietary practices. Trace element values from human and faunal calculi followed similar trends to their respective bones. Microscopy yielded

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Raúl, Sitoe Sandra. "Environmental history in southern Mozambique : Reconstruction of flooding events, hydroclimate and sea-level dynamics since mid-Holocene." Doctoral thesis, Stockholms universitet, Institutionen för naturgeografi, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-148465.

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The aim of this thesis has been to reconstruct paleoenvironment, paleohydrology and paleoclimate in coastal southern Mozambique, with emphasis on tracing past flooding events on the lower Limpopo River floodplain. In order to extend flood chronologies beyond periods covered by instrumental data, sediments from lakes on the floodplain were studied (Lake Lungué, Coassane Oxbow, Lake Magandane and Lake Soane). Past sea-level variations and climate changes were deduced by analyzing sediments from coastal sites north of the floodplain area (Lake Chilau, Lake Nhauhache and Macassa Bay). To achieve t

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Hughes, Matthew W. "Late Quaternary landscape evolution and environmental change in Charwell Basin, South Island, New Zealand." Lincoln University, 2008. http://hdl.handle.net/10182/305.

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Charwell Basin is a 6 km-wide structural depression situated at the boundary between the axial ranges and faulted and folded Marlborough Fault Zone of north-eastern South Island, New Zealand. The basin contains the piedmont reach of the Charwell River, and a series of late Quaternary loess-mantled alluvial terraces and terrace remnants that have been uplifted and translocated from their sediment source due to strike-slip motion along the Hope Fault which bounds the basin to its immediate north. The aim of this study was to provide an interdisciplinary, integrated and holistic analysis of late

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Weisskopf, A. R. "Vegetation, agriculture and social change in late Neolithic China : a phytolith study." Thesis, University College London (University of London), 2010. http://discovery.ucl.ac.uk/20313/.

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Late Neolithic and Early Bronze Age Central China was the scene of important cultural developments, which impacted on agricultural practices and local vegetation. Using phytolith data from 4 archaeological -sites and a survey of a further 11 sites in Henan this project investigates changing crop choices, developments in crop processing and, to a lesser extent, differing local environments both temporally and spatially. Comparisons of relative levels of phytoliths from crop husks, Panicum, Setaria and Oryza, from each site and period were compared to provide evidence of changes in crop repertoi

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Chabot, Yohan. "Approche géomorphologique de la vallée de Deli et étude géoarchéologique du site historique de Kota Cina (Sumatra Nord, Indonésie)." Thesis, Paris 1, 2017. http://www.theses.fr/2017PA01H058/document.

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La reconstitution des paléoenvironnements et la compréhension des dynamiques géomorphologiques sont de plus en plus appréhendées au regard des recherches archéologiques. Toutefois, en Indonésie, cette approche est encore peu usitée. L’étude du site de Kota Cina (Sumatra Nord, Indonésie) entreprise dans le cadre de cette thèse, est un travail pionnier qui vise à comprendre les changements environnementaux à l’interface Homme/Nature, dans le but d’une reconstitution paléogéographique. Cet ancien comptoir commercial portuaire du Détroit de Malacca, actif entre les XIème et XIVème siècles AD, se t

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Corteletti, Rafael. "Projeto arqueológico Alto Canoas - Paraca: um estudo da presença Jê no planalto Catarinense." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/71/71131/tde-19042013-093054/.

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Nesta tese vou apresentar novos dados sobre padrões de ocupação dos Jê Meridionais e minhas interpretações sobre a história deste povo, com base em meu estudo de caso, do Alto Rio Canoas, região de Urubici, em Santa Catarina, Brasil. No planalto, os camposde altitude e a mata de araucária dominam a paisagem. Nas serrarias de Urubici, as nascentes de vários arroios e rios começam em zonas húmidas, com solos rasos e pedregosos, na área dos campos, a cerca de 1800m de altitude. Estas águas correm através de vales incisos florestados pela mata de araucária criando cachoeiras e corredeiras, que aca

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Zhao, Zhijun. "Rice domestication in the middle Yangtze Region, China : an application of phytolith analysis /." free to MU campus, to others for purchase, 1996. http://wwwlib.umi.com/cr/mo/fullcit?p9823337.

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Guntzer, Flore. "Impact de la culture intensive de céréales sur les stocks de silice biodisponible dans les sols européens." Aix-Marseille 3, 2010. http://www.theses.fr/2010AIX30064.

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Le silicium est présent dans les mêmes proportions que la plupart des macronutriments dans les végétaux, et est reconnu pour être un élément bénéfique pour leur croissance. Le silicium a beau être abondant dans le sol, les formes solides sous lesquelles on le trouve ne sont pas disponibles pour les plantes. Dans des écosystèmes naturels, les phytolithes (particules de silice amorphe d'origine végétale) sont l'une des sources de silicium les plus importantes pour les plantes car à pH > 4, leur cinétique de dissolution est plus rapide que celles des minéraux silicates. Or dans les sols cultiv

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Walshaw, Sarah Catherine. "Reconstruction of environment in early Bronze Age Syria through phytolith analysis on human dental calculus." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp03/MQ46995.pdf.

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Ryan, P. L. "Diversity of plant and land use during the Near Eastern Neolithic : phytolith perspectives from Çatalhöyük." Thesis, University College London (University of London), 2010. http://discovery.ucl.ac.uk/645476/.

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Based in the Konya Basin of Central Anatolia, the Neolithic site of Çatalhöyük (East Mound) is important to our understanding of the development of early agricultural societies. Occupied between 7400-7100 cal BC to 6200-5900 cal BC, the site is notable for its extended period of occupation, large size and densely packed architecture. Research into Neolithic plant and land use has generally focused upon agricultural crops and the environments in which they are grown, and less is known about the role of wild plants and the non-food use of plants in the later Neolithic. This project used phytolit

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García-Granero, Fos Juan José. "From gathering to farming in semi-arid Northern Gujarat (India): a multi-proxy approach." Doctoral thesis, Universitat de Barcelona, 2015. http://hdl.handle.net/10803/351960.

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Understanding how human societies adapted to past environmental and climatic variability is fundamental to face present and future climatic events, particularly in highly vulnerable arid and semi-arid regions. Northern Gujarat (northwestern India) is a semi-arid ecotone where high intra- and inter-annual precipitation variability has a great impact on the availability of resources and, consequently, on human populations that depend upon them. The main aim of this thesis is to understand how and why plant-related subsistence strategies changed throughout the Holocene in northern Gujarat, with

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Crespin, Julien. "Analyse de la composition isotopique en oxygène ([delta][18]O) des phytolithes de bois et des diatomées lacustres pour la mise au point de nouveaux traceurs paléoclimatiques continentaux." Aix-Marseille 3, 2008. http://www.theses.fr/2008AIX30065.

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Ce travail a permis d'appliquer avec succès la technique d'extraction de l'oxygène par. Afin de palier au manque de marqueurs quantitatifs des paléoclimats continentaux, ce travail s'attache à définir de nouvelles relations entre [delta][18]O"silice biogenique", [delta][18]O"eau de formation" et température. Pour ce faire, la technique d'extraction de l'oxygène par fluorination-laser IR a été appliqué avec succès à l'analyse [delta][18]O de très petits échantillons de silice biogénique. Pour la première fois, une relation thermo-dépendante entre [delta][18]O"phytolithes de bois" et [delta][18]

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Albert, Cristóbal Rosa Maria. "Study of ash layers through phytolith analyses from the Middle Paleolithic levels of Kebara and Tabun caves." Doctoral thesis, Universitat de Barcelona, 1999. http://hdl.handle.net/10803/2606.

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The Levant, and Israel in particular, possesses a rich archaeological record of prehistoric caves from the Middle and Upper Paleolithic periods. Some of these caves have been subjected to intensive multidisciplinary studies, providing information not only on the archaeological record, but also on the diagenetic processes that have affected this archaeological record through time.<br/><br/>One of the most interesting remains preserved in these caves is the ashy features or hearths. They are usually abundant and often visually well preserved. Ash accumulations are sometimes meters thick. Their p

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McCune, Jenny Lyn. "The long-term history of plant communities on southeastern Vancouver Island based on vegetation resurveys and phytolith analysis." Thesis, University of British Columbia, 2013. http://hdl.handle.net/2429/45618.

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Terrestrial plant communities are complex systems, and major storehouses of global biodiversity. The composition of a plant community today is contingent on conditions that have occurred throughout its history. Therefore, an understanding of current plant community structure requires an understanding of its origin and its variability over time. In this thesis, I investigate the history of plant communities on southeastern Vancouver Island, Canada, at two time scales. These communities are now highly fragmented and threatened by human disturbance, but they also have a long history of manag

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Levin, Maureece. "Food Production, Environment, and Culture in the Tropical Pacific: Evidence for Prehistoric and Historic Plant Cultivation in Pohnpei, Federated States of Micronesia." Thesis, University of Oregon, 2016. http://hdl.handle.net/1794/19669.

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Food production, or the cultivation and processing of edible materials, is closely linked to both the physical environment and human social systems. This is especially true on the islands of Remote Oceania, where cultivation of plants introduced with colonization has always been a key component of survival. This project centers on the production systems of an island in the west central Pacific: Pohnpei, Micronesia. It addresses the fundamental question of how food production is related to changes in social and physical environments and also addresses the optimum ways to archaeologically study

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Shillito, Lisa Marie. "Investigating traces of activities, diet and seasonality in middens at Neolithic catalhoyuk : An integration of microstratigraphic, phytolith and chemical analyses." Thesis, University of Reading, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.529968.

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This research examines formation processes of middens and the associated activities at the site of Catalh6yuk, Turkey. Using this site as a case study, this research has wider significance for understanding the Neolithic of the region and for the study of middens in general. Middens are a unique deposit in that they contain traces of activities that may not be found in cleaner contexts such as floors, and contain materials such as ash, animal dung, phytoliths and coprolites which can inform on plant resource use, diet and subsistence strategies at a high temporal resolution. In this research t

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