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Dissertations / Theses on the topic 'Wood charcoal'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Ramírez, Andrés 1982. "A comparative analysis of emissions from bagasse charcoal and wood charcoal." Thesis, Massachusetts Institute of Technology, 2005. http://hdl.handle.net/1721.1/32941.

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Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, June 2005.<br>"May 2005."<br>Includes bibliographical references (leaf 27).<br>Haiti is the poorest country in the Western hemisphere and is in need of cheap cooking fuel source. Currently, lump charcoal, the cooking fuel of Haiti, is made by carbonizing trees in ditches before selling the charcoal at market. However, Haiti is now 98% deforested and must find a way to prepare their food that does not destroy their land. The idea for this new fuel comes from compressed and extruded carbonized bagasse, which w

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2

Wretborn, Tobias. "Pyrolysis of Wood Chips : Influence of Pyrolysis Conditions on Charcoal Yield and Charcoal Reactivity." Thesis, Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-179.

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At a steel mill, charcoal from biomass is a potential substitute to coal as a reducing agent in the Blast Furnace. The steel industry accounts for 5 % of the global CO2 emissions. Charcoal, being a renewable fuel, has the potential to mitigate the steel industry’s contribution to global warming. If charcoal were to replace the pulverized coal injected into one of Sweden´s two blast furnaces an estimated 1,13 Mton raw biomass per year would be required, this is equivalent to 2,5 % of the total available biomass in Sweden the year 2020 . If this is to be realized, a well optimized pyrolysis proc

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3

February, Edmund Carl. "Climatic reconstruction using wood charcoal from archaeological sites." Master's thesis, University of Cape Town, 1990. http://hdl.handle.net/11427/19516.

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Bibliography: pages 87-98.<br>This thesis assesses the feasibility of using wood charcoal from archaeological sites as a palaeoclimatic indicator. Three techniques are described: (i) charcoal identification from Xylem Anatomy. (ii) Ecologically Diagnostic Xylem Analysis and (iii) stable carbon isotope analysis on wood charcoal. The first is a well established method of environmental reconstruction. This is the first systematic application of Ecologically Diagnostic Analysis and the first application of stable carbon isotope analysis on wood charcoal. Charcoal identification shows that the most

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Gonçalves, Thaís Alves Pereira [UNESP]. "Anatomia do lenho e do carvão de espécies arbóreas do Cerrado no Estado de São Paulo, Brasil." Universidade Estadual Paulista (UNESP), 2010. http://hdl.handle.net/11449/88517.

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Made available in DSpace on 2014-06-11T19:23:30Z (GMT). No. of bitstreams: 0 Previous issue date: 2010-08-27Bitstream added on 2014-06-13T19:29:36Z : No. of bitstreams: 1 goncalves_tap_me_botfca.pdf: 2550368 bytes, checksum: 024d4159f78f351a8b6ce296e16b0311 (MD5)<br>Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)<br>A Antracologia é uma ciência que se baseia na anatomia da madeira para realizar a análise e identificação de carvão vegetal. No Brasil, ela visa tradicionalmente obter dados paleoecológicos e paleoetnobotânicos, mas também conservacionistas e tecnológicos. As anális

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5

OLIVEIRA, MARIANA DE BEAUCLAIR DOMINGUES DE. "WOOD CHARCOAL PRODUCTION AND LANDSCAPE CHANGE IN PEDRA BRANCA MASSIF, RIO DE JANEIRO, RJ." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2010. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=16644@1.

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PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO<br>Dezenas de carvoarias históricas ocorrem na bacia do Rio Caçambe, localizada no sudeste do Maciço da Pedra Branca, Rio de Janeiro, RJ. Estas carvoarias são vestígios da produção de carvão no final do século XIX e início do XIX, destinadas ao abastecimento da cidade do Rio de Janeiro. O objetivo desta dissertação é analisar os fragmentos de carvão que compõem essas carvoarias, através de sua identificação taxonômica e estimativa de diâmetro, e comparar os resultados com levantamentos fitossociológicos atuais, permitindo uma melhor compreensã

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6

Gonçalves, Thaís Alves Pereira 1982. "Anatomia do lenho e do carvão de espécies arbóreas do Cerrado no Estado de São Paulo, Brasil /." Botucatu : [s.n.], 2010. http://hdl.handle.net/11449/88517.

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Resumo: A Antracologia é uma ciência que se baseia na anatomia da madeira para realizar a análise e identificação de carvão vegetal. No Brasil, ela visa tradicionalmente obter dados paleoecológicos e paleoetnobotânicos, mas também conservacionistas e tecnológicos. As análises antracológicas são possíveis porque a estrutura do lenho se mantém no carvão, entretanto, variações morfométricas podem ocorrer. O presente estudo visa contribuir para um melhor entendimento do efeito da carbonização no lenho através da análise estrutural da anatomia antes e após carbonização. A escolha de espécies do cer

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7

Cardona, Lina Maria Varón. "Estudo experimental da secagem e carbonização do Eucalipto Saligna para produção de carvão vegetal." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/3/3133/tde-18072013-143903/.

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A crescente busca por formas de energia mais limpas e renováveis têm colocado o carvão vegetal como possível alternativa ao fóssil na siderurgia brasileira. A secagem de toras de EUCALYPTUS Saligna é uma importante etapa do processo de carbonização. O objetivo deste trabalho é analisar o comportamento de algumas variáveis que afetam os processos de secagem e carbonização da madeira para produção de carvão vegetal, assim como entender o efeito da pré-secagem na carbonização; visando estabelecer coeficientes básicos de engenharia neste processo. Para isso, foi determinada a densidade básica da m

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Lindgren, Robert. "Gasification of biomass as an alternative enegy source to fuel wood and charcoal - A feasibility study in Malawi." Thesis, Umeå universitet, Institutionen för tillämpad fysik och elektronik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-114138.

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9

Gon?alves, Sobrinho Marcelino Breguez. "Correla??o entre as propriedades f?sicas do carv?o vegetal de Eucalyptus sp., na produ??o de ferro sil?cio." UFVJM, 2016. http://acervo.ufvjm.edu.br/jspui/handle/1/1598.

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?rea de concentra??o: Manejo florestal.<br>Data de aprova??o retirada da vers?o impressa da disserta??o.<br>Submitted by Jos? Henrique Henrique (jose.neves@ufvjm.edu.br) on 2018-02-16T21:29:35Z No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) marcelino_breguez_goncalves_sobrinho.pdf: 1141104 bytes, checksum: ccb26c2686949cf99a1c9c1fcfca38e6 (MD5)<br>Approved for entry into archive by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2018-03-09T19:36:14Z (GMT) No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (

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Albuquerque, Álisson Rangel. "Anatomia comparada do lenho e do carvão aplicada na identificação de 76 espécies da floresta Amazônica, no estado do Pará, Brasil." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/11/11150/tde-20092012-093146/.

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A antracologia, como ciência, tem como objetivo a análise da estrutura anatômica dos carvões vegetais arqueológicos e modernos direcionada para a paleoecologia, paleoetnobotânica, identificação das espécies, etc. No Brasil, a identificação de espécies florestais através da análise dos carvões vegetais atuais reveste-se de importante caráter conservacionista, por ser o maior produtor mundial de carvão vegetal, com grande parte produzida pela extração ilegal de madeira de florestas nativas. Com esse objetivo, no presente trabalho, foi avaliada a estrutura anatômica microscópica, a densidade e a

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11

Moutinho, Victor Hugo Pereira. "Influência da variabilidade dimensional e da densidade da madeira de Eucalyptus sp. e Corymbia sp. na qualidade do carvão." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/11/11150/tde-19022013-110220/.

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O presente trabalho objetivou a determinação e análise comparativa das propriedades físicas da madeira e do respectivo carvão vegetal, ao longo da direção radial e longitudinal do lenho de árvores de dez clones de alta produtividade de Eucalyptus e Corymbia. Para tanto, discos de diferentes alturas do tronco foram coletados de árvores das espécies, no município de Capelinha-MG, obtendo-se amostras para a determinação da densidade básica, contração linear e volumétrica, coeficiente de anisotropia e umidade inicial. Na sequência, os corpos de prova foram carbonizados, visando a determinação da d

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12

Crawford, Laura J. Dr. "The Role of Selectivity on Alaskan Fuel Management Strategies." The Ohio State University, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=osu1600964489257755.

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13

Eklund, Agnes. "Correlations related to fuel usage patterns in rural Kenya : A comparison of local surveys to facilitate future local sustainable fuel actions." Thesis, KTH, Hållbar utveckling, miljövetenskap och teknik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-244865.

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Human activities affect the climate. If the utilization of fossil and other hazardous fuel methods is eliminated, it would reduce the impact on climate change. By investigating fuel usage patterns in three rural areas of Kenya, looking at social, economic and ecological factors, a foundation to facilitate future local actions towards sustainable fuel consumption can be made. With the help of local surveys performed in Siaya, Kwale and Embu, correlations could be found. The data was not extensive enough to generate general conclusions but can act as a beginning to a foundation for future sustai

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14

Remy, Cécile. "Spatio-temporalité des dynamiques de feux et de végétation au cours de l'Holocène en forêt boréale coniférienne (Québec-Labrador)." Thesis, Montpellier, 2016. http://www.theses.fr/2016MONTS010.

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Les changements climatiques en cours semblent être à l’origine d’une intensification de l’activité de feux dans les forêts circumboréales. Des modèles prédictifs basés sur des données historiques sont couramment utilisés pour essayer d’anticiper les régimes des feux et leurs impacts pour l’horizon 2100. Cependant, les concepts alimentant ces modèles reposent sur l’interprétation de données issues de seulement quelques régions alors que de nombreuses études ont montré que des facteurs régionaux à locaux tels que la topographie, la nature des sols, la composition et la structure de la végétation

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15

Cunningham, Peter Low. "Prospects for sustained harvesting of mopane (Colophospermum mopane) on the Venetia Limpopo Nature Reserve and its implications for browsing ungulates." Thesis, Stellenbosch : Stellenbosch University, 1996. http://hdl.handle.net/10019.1/55219.

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Thesis (MSc) -- Stellenbosch University, 1996.<br>ENGLISH ABSTRACT:Principle objectives of this study were to investigate the ecological feasibility of sustained utilization of mopane, using Venetia Limpopo Nature Reserve as a pilot study area. The study was limited to three different mopane dominated vegetation types on the reserve with most research being conducted in C.mopane woodland. Results can be summarized as follows: 1. Colophospermum mopane is ubiquitous on VLNR. 2. C.mopane woodland has the deusest mopane growth of the three vegetation types and highest densities are found on

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16

Carvalho, Albertinho Barreto de. "Compostos carbonílicos no ar em ambientes de trabalho de carvoarias na Bahia." Instituto de Química, 2005. http://repositorio.ufba.br/ri/handle/ri/20615.

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Submitted by Ana Hilda Fonseca (anahilda@ufba.br) on 2016-09-16T13:51:29Z No. of bitstreams: 1 Tese Albertinho.pdf: 2368551 bytes, checksum: 417090fff955b8696ce1e600d35af5e0 (MD5)<br>Approved for entry into archive by Vanessa Reis (vanessa.jamile@ufba.br) on 2016-09-16T14:11:51Z (GMT) No. of bitstreams: 1 Tese Albertinho.pdf: 2368551 bytes, checksum: 417090fff955b8696ce1e600d35af5e0 (MD5)<br>Made available in DSpace on 2016-09-16T14:11:51Z (GMT). No. of bitstreams: 1 Tese Albertinho.pdf: 2368551 bytes, checksum: 417090fff955b8696ce1e600d35af5e0 (MD5)<br>CNPq, à CAPES e à FINE<br>Este traba

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17

Bigelow, Benjamin A. "Tensions Between Word and Image in Amalie Skram's Professor Hieronimus." BYU ScholarsArchive, 2010. https://scholarsarchive.byu.edu/etd/2136.

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In her 1895 novel, Professor Hieronimus, Amalie Skram describes the struggle of Else Kant, a young mother and artist, against a tyrannical and apparently unfeeling doctor who keeps her at a Copenhagen asylum for more than a month against her will. Else feels terrorized by the constant surveillance to which she is subjected. This voyeuristic tendency in psychiatry is not only a reflection of Amalie Skram's own experience at a Copenhagen asylum, but is also indicative of a new psychiatric epistemology that understood visual observation as the key to ascertaining objective truth. Skram's novel is

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18

Steelandt, Stéphanie. "Disponibilité et exploitation des ressources ligneuses par les paléoesquimaux et Inuit sur la côte ouest du Nunavik (Québec, Canada)." Thesis, Rennes 1, 2014. http://www.theses.fr/2014REN1S127/document.

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Cette étude présente les caractéristiques des ressources ligneuses actuelles et archéologiques trouvés sur la côte ouest du Nunavik et documente leur collecte, exploitation et origine. L'étude de 1573 bois flottés provenant des plages d'Ivujivik, Akulivik, Inukjuak et Umiujaq révèle que ces derniers étaient moins nombreux, de plus petites tailles et plus dégradés dans les aires les plus au nord. Huit taxons ont été identifiés sous microscope. L'épinette était le taxon le plus abondant, suivi du saule, du mélèze, du peuplier et de l'aulne. Le cèdre blanc, le bouleau blanc et le sapin baumier ét

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19

Deck, Donalee Marie. "Wood charcoal remains from the Lockport site, Manitoba." 1989. http://hdl.handle.net/1993/7191.

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Wood charcoal remains were analyzed from the Lockport site located along the Red River in southern Manitoba. Three research objectives included: (1) an investigation of charcoal quantification by comparing the wood taxa recovered within size categories; (2) a comparison of wood composition within features to indicate wood use; and (3) a comparison of the wood recovered from the Blackduck, Laurel, and Larter occupations to test if there was a change in wood use and the forest composition through time. Charcoal was randomly collected and identified from features and general level samples. A cat

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20

Lu, Chien-Lin, and 呂建霖. "Study on Cement and Gypsum Bonded Composites Made of Wood Charcoal Particles." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/89337699493146436332.

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碩士<br>國立中興大學<br>森林學系<br>93<br>This study used wood charcoal particles as the raw material, gypsum and cement as binding agents, to make gypsum-cement-wood charcoal composites. When the gypsum-cement binds wood charcoal particles, the gypsum-cement composite density was decreased. But when wood charcoal particles content increased, the gypsum-cement-wood charcoal composites, cement-wood charcoal particles (face) / gypsum-cement-bamboo particles (back) composites density (1.02 ~ 1.57 g/cm3), moisture content (11.6 ~ 19.9 %) and water absorption (14.4 ~ 50.3 %) increased. Water absorbing ability

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21

Mohanty, Rakesh. "Deposition of SiC Derived from Desert Sand and Wood Charcoal by Plasma Processing." Thesis, 2009. http://ethesis.nitrkl.ac.in/1012/1/Binder1.pdf.

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The basic aim of my project was to find a cheaper source of silicon carbide to use as coating on metal plates to increase their wear resistant properties. Silicon carbide has very high wear resistant properties so is ideal for coating on metal surface using plasma processing. The plasma process uses temperature of the order of 5000k and higher. So our target was to utilize this high temperature to fire a reaction between silica(sio2) and carbon to form silicon carbide. For silica we used sand and for carbon we used wood charcoal. Though the reaction was theoretically possible but at such high

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22

CARRARI, ELISA. "Legacy effects of former charcoal kiln sites on the forest vegetation of a Mediterranean area." Doctoral thesis, 2016. http://hdl.handle.net/2158/1040500.

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The objective of the reasearch was analysing the long-term effects of the centennial activity of charcoal production on forest ecosystems of the Mediterranean area. The study is structured in order to achieve three main aims: i) evaluating the impact of kiln sites on the forest vegetation (tree, shrubs and herbaceous species) in relation to abiotic factors; ii) examine the effects of the charcoal-enriched kiln site soil on the early life stages of major forest trees; iii) quantifying and characterizing the legacy of such activity at the landscape level, through the analysis of the distribution

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23

Mulaudzi, Silas Khakhathi. "An estimation of emissions from domestic biofuel combustion over southern Africa." Thesis, 2007. http://hdl.handle.net/10539/2074.

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Student Number : 0306319G - MSc Research Report - School of Geography, Archaeology and Environmental Studies - Faculty of Science<br>Combustion of fuel wood, charcoal and non-woody biofuels is a daily practice for about half of the world’s population. Combustion of biofuel is a major source of trace gases, with domestic biomass burning contributing about 17% carbon dioxide (CO2), 13% carbon monoxide (CO) and 6% nitrous oxide (N2O) to the global budget. In Africa, where there is a growing population, domestic biofuel emissions are a particularly important source of trace gases. The most

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Osei, Priscilla. "Effects of charcoal and wood fuel production on Ghana´s vegetation - A case study of Varimpere in the Wa West District." Master's thesis, 2015. http://www.nusl.cz/ntk/nusl-249587.

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Unrestrained population growth especially in the developing countries, the necessity for existence as well as the desire for comfort are the major causes of environmental resources depletion in the world with particular reference to Ghana. One of the most exploited environmental resources in Ghana which is mostly not replaced is vegetation specifically trees. This paper aims to look into the effect of charcoal and wood fuel on Ghana's vegetation. A combination of qualitative and quantitative methodological approaches were used in data collection and analysis. These methods include: questionnai

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25

Dotte-Sarout, Emilie. ""The ancestor wood" : trees, forests and precolonial kanak settlement on New Caledonia Grande Terre : case study and anthracological approach in the Tiwaka Valley (Northeastern Grande Terre) = Le bois ancêtre : arbres, forêts et occupation kanak précoloniale sur la Grande Terre de Nouvelle-Calédonie : étude de cas et approche anthracologique dans la vallée de la Tiwaka (Nord Est) /|cprésentée par Emilie Dotte-Sarout pour obtenir le grade de Docteur de l'Université Paris I, en anthropologie, ethnologie et préhistoire." Phd thesis, 2010. http://hdl.handle.net/1885/147111.

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Lennox, Sandra Janet. "Woody taxa from charcoal in Sibudu’s Middle Stone Age hearths." Thesis, 2016. http://hdl.handle.net/10539/21655.

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A thesis submitted to the Faculty of Science, University of the Witwatersrand, Johannesburg, in fulfilment of the requirements for the degree of Doctor of Philosophy. Johannesburg, 2016.<br>ABSTRACT Sibudu rock shelter was occupied by hunter gatherer groups of modern humans during the Middle Stone Age between 77 and 38 000 (38 ka) years ago. Sibudu is in the summer rainfall region and is situated about 15 km inland of the eastern coast of South Africa. The site includes technological industries such as Still Bay and Howiesons Poort that are distinguished by specific stone tool types. Wood

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27

Mellors, Trevor. "Holocene paleohydrology from Lake of the Woods and Shoal Lake cores using ostracodes, thecamoebians and sediment properties." 2010. http://hdl.handle.net/1993/4098.

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Ten sediment cores (2.0-8.5 m long) from various locations in Lake of the Woods (LOTWs) and Shoal Lake (SL) were recovered in August 2006, using a Kullenberg piston corer. From the study of the macrofossils (primarily ostracodes and thecamoebians) and the sediments in six processed cores, variations in paleoconditions were observed both spatially and temporally, and the timing of these changes were identified in over 10,000 years of postglacial history. Ostracodes disappeared from the LOTWs record from about 9000 to 7600 calendar years before present (BP) (about 5800 in SL), after LOTWs beca

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