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Dissertations / Theses on the topic 'Mesoproterozoic'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Ward, Susan E. "The petrogenesis of the Mesoproterozoic mafic dykes and sills of Zimbabwe." Thesis, University of Portsmouth, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.444475.

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The assembly of the Mesoproterozoic super-continent Rodinia of southern Africa is evidenced by the fonnation of supracrustal belts and related granitic magmatism mainly between 1400 and 900 Ma and known collectively throughout Africa as the Kibaran event. As these new crustal segments were being fonned, the ancient cratons were flexed and, in some regions, fractured. The associated intracratonic mafic magmatism is preserved as mafic dyke swanns in certain parts of southern Africa. Three dyke swarms, namely the Kamativi, Mutare and Guruve are believed to be of "Kibaran" age (although their age

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2

Darabi, Mohammad Hamedpour. "A palaeomagnetic study of the (Late Mesoproterozoic) Torridonian Supergroup, NW Scotland." Thesis, University of Liverpool, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.250314.

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3

Trainor, Robert J. "Structure/kinematic and metamorphic analysis of the mesoproterozoic Novillo Gneiss, Tamaulipas, Mexico." Ohio : Ohio University, 2010. http://www.ohiolink.edu/etd/view.cgi?ohiou1268932865.

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4

Fein, Elizabeth May. "Flow fabric determination of two Mesoproterozoic midcontinent rift dike swarms, northeastern Minnesota." Kent State University / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=kent1232051971.

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5

Trainor, Robert J. "Structural/Kinematic and Metamorphic Analysis of the Mesoproterozoic Novillo Gneiss, Tamaulipas, Mexico." Ohio University / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1268932865.

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6

Pawlowska, Maria Monika. "Palaeoenvironmental reconstruction of the late mesoproterozoic kumakha subformation (Lakhanda group) : a multiproxy approach." Thesis, University of Cambridge, 2013. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.648099.

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7

Marconato, Andre. "Planícies de inundação fluviais pré-vegetação: exemplos do Supergrupo Espinhaço (Mesoproterozoico, BA) e do Supergrupo Camaquã (Ediacarano-Cambriano, RS)." Universidade de São Paulo, 2014. http://www.teses.usp.br/teses/disponiveis/44/44141/tde-03122014-101307/.

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Planícies de inundação são áreas sujeitas a fluxo episódico de água, que devido a disponibilidade de água, nutrientes e substrato estável, foram largamente afetadas desde o surgimento e subsequente evolução de plantas vasculares terrestres. Neste contexto, a escassez de exemplos documentados de planícies de inundação formadas anteriormente ao período Siluriano contrasta com décadas de debate acerca dos efeitos da evolução de plantas terrestres em estilos de canais fluviais. Dada a importância de planícies de inundação como sítios de acumulação de partículas sedimentares, intemperismo de minera

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Lathrop, Erin C. "Understanding the Late Mesoproterozoic Earth System from the Oldest Strata in Grand Canyon: C-Isotope Stratigraphy and Facies Analysis of the 1254 Ma Bass Formation, Grand Canyon Supergroup, AZ., USA." DigitalCommons@USU, 2018. https://digitalcommons.usu.edu/etd/7046.

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Rocks provide insight into ancient times before complex animals existed. The oldest sedimentary rocks in Grand Canyon (the Bass Formation) allow us to glimpse into what things might have been like over a billion years ago. These rocks record the time known as the Mesoproterozoic Era (1.6 to 1.0 billion years ago), otherwise known as the ‘boring billion’. These rocks are thought to be the right age to indicate the end of an oddly stable world when continents were quiet and life was calm, yet they predate younger rocks that record extreme events. The Bass Formation, some of the only rock of this

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9

Hopper, Derek J. "Crustal evolution of paleo- to mesoproterozoic rocks in the Peake and Denison Ranges, South Australia /." [St. Lucia, Qld.], 2001. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe18288.pdf.

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10

Sherman, Anne Geneviève. "Sedimentology, sea-level history, and tectonic context of a mesoproterozoic carbonate ramp, Baffin Island, Nunavut." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/NQ59535.pdf.

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11

Aden, Douglas J. "An Anomalous Breccia in the Mesoproterozoic (~1.1 Ga) Atar Group, Mauritania: Endogenic vs. Exogenic Genesis." Ohio University / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1276614508.

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12

Bállico, Manoela Bettarel. "Análise de fácies e sequências deposicionais em sistemas continentais e estuarinos do topo da Formação Tombador, Mesoproterozoico, Chapada Diamantina, Brasil." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2012. http://hdl.handle.net/10183/75668.

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A Formação Tombador, Mesoproterozoico, compreende diferentes sistemas deposicionais, depositados em um bacia sag, que abrangem desde sistemas aluviais a estuarinos. Os depósitos bem preservados e sua ampla ocorrência em escala regional (~300 km) faz com que a Formação Tombador seja um excelente caso de estudo no Proterozoico. Foram reconhecidas três sequências deposicionais, limitadas por superfícies erosivas em escala regional no topo da Formação Tombador. A Sequência I é composta na base por canais fluviais cascalhosos entrelaçados rasos, que são sotopostos por depósitos de dunas e lençóis d

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Corrigan, David Carleton University Dissertation Earth Sciences. "Mesoproterozoic evolution of the south-central Grenville orogen; structural, metamorphic, and geochronologic constraints from the Mauricie transect." Ottawa, 1995.

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14

Durham, Rachel Lauren. "POTENTIAL FIELD MODELING ACROSS THE NEODYMIUM LINE DEFINING THE PALEOPROTEROZOIC-MESOPROTEROZOIC BOUNDARY OF THE SOUTHEASTERN MARGIN OF LAURENTIA." UKnowledge, 2017. http://uknowledge.uky.edu/ees_etds/53.

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A zone of high magnetization along the SE margin of Paleoproterozoic Laurentia in the United States is indicated by magnetic anomaly data. The SE edge corresponds to the geochemical Neodymium mantle derivation model age (TDM) boundary and the entire anomaly overlies the Paleoproterozoic Mazatzal Province. Two-dimensional gravity and magnetic models across the Nd boundary are created with Moho constrained from receiver functions with gravity, sedimentary thickness and the base of the crustal magnetization. Upper crustal magnetization does not show strong variation across this boundary and much

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15

Bial, Julia [Verfasser]. "The Mesoproterozoic evolution of the central Namaqua Metamorphic Complex (South Africa and Namibia) : Petrology, geochemistry and geochronology / Julia Bial." Kiel : Universitätsbibliothek Kiel, 2018. http://d-nb.info/1154765342/34.

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Doe, Michael Frederick. "Reassessment of Paleo- and Mesoproterozoic basin sediments of Arizona| Implications for tectonic growth of southern Laurentia and global tectonic configurations." Thesis, Colorado School of Mines, 2014. http://pqdtopen.proquest.com/#viewpdf?dispub=3622903.

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<p> Proterozoic crustal provinces that underlie much of the United States record prolonged southward growth of the North American craton (Laurentia) between ca. 1.8 and 1.0 Ga. Exposures throughout central Arizona's Tonto Basin represent multiple generations of sedimentary basins formed during Proterozoic accretion. Metasedimentary rocks sampled across Tonto Basin resulted have identified remnants of a previously undated but potentially widespread Mesoproterozoic basin called the Yankee Joe Basin. Sediments of Yankee Joe Basin are particularly interesting because they have depositional age's c

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Bonilla, Pérez Amed. "Petrografia, geoquímica e geocronologia do Granito De Parguaza na Colômbia." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2013. http://hdl.handle.net/10183/94689.

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O Granito Parguaza está localizado nas margens do Rio Orinoco no Departamento de Vichada, na Colômbia, e faz parte do grande batólito descrito na Venezuela como “Granito de El Parguaza”. Este corpo aflora na Colômbia como colinas isoladas tipo inselberg e colinas de pequena dimensão com declives acentuados que se sobressaem em relação às vastas planícies terciárias. Dada a sua dimensão, representa um dos maiores granitos anorogênicos do mundo, fazendo parte do noroeste do Cráton Amazônico, podendo ser distinguido como uma das mais antigas unidades da Colômbia (Mesoproterozóico) que não tenham

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Salinas, Gerardo Ramiro Matos. "Geocronologia e evolução tectônica paleo-mesoproterozoica do oriente boliviano - região sudoeste do craton amazônico." Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/44/44141/tde-23012011-170732/.

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Este trabalho caracteriza a evolucao tectónica, identificando a cronologia dos principais eventos tectono-magmáticos do Pré-Cambriano Boliviano. A complexa evolucao geológica do Oriente da Bolívia se estende desde o Paleo a Mesoproterozoico compreendendo as provincias Rio Negro Juruena, Rondoniana San Ignacio e Sunsás na regiao conhecida como Bloco Paragua. Diversos métodos de estudo foram adotados na pesquisa tendo em vista tratar-se de um terreno com evolução policíclica e incluiram, alem do mapeamento geológico e petrografía dos principais tipos de rocha, a metodologia U-Pb para determinaçã

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19

Drüppel, Kirsten. "Petrogenesis of the Mesoproterozoic anorthosite, syenite and carbonatite suites of NW Namibia and their contribution to the metasomatic formation of the Swartbooisdrif sodalite deposits." [S.l. : s.n.], 2003. http://deposit.ddb.de/cgi-bin/dokserv?idn=969683375.

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Rizzotto, Gilmar Jose. "Petrologia e geocronologia do complexo máfico-ultramáfico trincheira, sudoeste do cráton amazônico: implicações tectônicas do mesoproterozóico." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2012. http://hdl.handle.net/10183/66365.

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A ambiência geotectônica das rochas máfico-ultramáficas do sudoeste do Cráton Amazônico é, de uma maneira geral, pouco conhecida. A maioria dos trabalhos desta porção cratônica está enfocada nos estudos geocronológicos em granitóides, de modo que pouco se sabe sobre a origem e significado tectônico destas rochas. Neste contexto, esta pesquisa buscou contribuir para o conhecimento da evolução geotectônica do sudoeste do Cráton Amazônico, através da caracterização de um complexo ofiolítico Mesoproterozóico, correspondente ao Complexo Trincheira, de idade Calimiana. Desta forma, uma nova proposta

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Agić, Heda. "Palaeobiology and diversification of Proterozoic-Cambrian photosynthetic eukaryotes." Doctoral thesis, Uppsala universitet, Paleobiologi, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-265229.

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One of the most important events in the history of life is the evolution of the complex, eukaryotic cell. The eukaryotes are complex organisms with membrane-bound intracellular structures, and they include a variety of both single-celled and multicellular organisms: plants, animals, fungi and various protists. The evolutionary origin of this group may be studied by direct evidence of past life: fossils. The oldest traces of eukaryotes have appeared by 2.4 billion years ago (Ga), and have additionally diversified in the period around 1.8 Ga. The Mesoproterozoic Era (1.6-1 Ga) is characterised b

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He, Yanhong. "Ages and geochemistry of the Xiong'er volcanic rocks along the southern margin of the North China Craton implications for the outgrowths of the paleo-mesoproterozoic supercontinent Columbia (Nuna) /." Click to view the E-thesis via HKUTO, 2008. http://sunzi.lib.hku.hk/hkuto/record/B4163424X.

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23

Séjourné, Brianna L. "Behaviour of Accessory Monazite and Age Significance During Metamorphism and Partial Melting During Grenville Orogeny: An Example from Otter Lake Area, Central Metasedimentary Belt, QC." Thesis, Université d'Ottawa / University of Ottawa, 2014. http://hdl.handle.net/10393/31574.

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The accretionary Mesoproterozoic Grenville Orogeny (ca. 1300 – 980 Ma) involving the Central Metasedimentary Belt is a key building block of the eastern Laurentian margin. A petrographic, mineralogical, geochemical and geochronological study of the migmatite complex in Otter Lake (QC) within the Marble Domain is used to resolve regional metamorphic and magmatic events primarily recorded in the leucosome accessory minerals (i.e. monazite). The relationship between the different stages of monazite and garnet growth and dissolution during the tectonic evolution of the orogenic history for the int

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Greentree, Matthew Richard. "Tectonostratigraphic analysis of the Proterozoic Kangdian iron oxide - copper province, South-West China." University of Western Australia. Tectonics Special Research Centre, 2007. http://theses.library.uwa.edu.au/adt-WU2009.0054.

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The Cenozoic Ailaoshan Red River shear zone marks the present day western margin of the South China Block. Along this margin are well preserved late Paleoproterozoic to early Neoproterozoic sedimentary and volcanic successions. This work examines the ages and tectonic environments for the formation of the successions, as well as significance of the regional tectono-magmatic events on the formation of widespread iron oxide-copper deposits. The oldest succession is the Paleoproterozoic Dahongshan Group. A new SHRIMP UPb age of 1675 ± 8 Ma for a tuffaceous schist unit confirms its Paleoproteroz

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Delpomdor, Franck. "Sedimentology, geochemistry and depositional environments of the 1175-570 Ma carbonate series, Sankuru-Mbuji-Mayi-Lomami-Lovoy and Bas-Congo basins, Democratic Republic of Congo: new insights into late Mesoproterozoic and Neoproterozoic glacially- and/or tectonically-influenced sedimentary systems in equatorial Africa." Doctoral thesis, Universite Libre de Bruxelles, 2013. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/209486.

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The one of the most important Eras of the Earth history, i.e. Neoproterozoic (1000-542 Ma),<p>was an enigmatic period characterized by the development of the first stable long-lived ~1.1-<p>0.9 Ga Rodinia and 550-500 Ma Gondwana supercontinents, global-scale orogenic belts,<p>extreme climatic changes (cf. Snowball Earth Hypothesis), the development of microbial<p>organisms facilitating the oxidizing atmosphere and explosion of eukaryotic forms toward the<p>first animals in the terminal Proterozoic. This thesis presents a multidisciplinary study of two<p>Neoproterozoic basins, i.e. Bas-Congo an

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Weber, Werner. "Geocronologia de rochas metabásicas da Formação Água Clara: registro de uma bacia Mesoproterozóica." Universidade de São Paulo, 2004. http://www.teses.usp.br/teses/disponiveis/44/44134/tde-27112015-113341/.

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A bibliografia relativa às unidades pré-Cambrianas do leste Paranaense e sudeste de São Paulo é extensiva, e perfaz mais de uma centena de trabalhos e relatórios publicados. O quadro gerado é confuso e fragmentário, caracterizado por uma imensa proliferação de denominações, muitas das quais informais e resultados de trabalhos localizados, contraditórias as normas estratigráficas. Uma destas Unidades, objeto deste estudo, é a Formação Água Clara. Esta seqüência literalmente \"passeia\" entre o Mesoproterozóico e o Neoproterozóico, sendo incluída ora no Grupo Setuva ora no Grupo Açungui. O enfo

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TURRA, Bruno Boito. "Estratigrafia e sedimentologia dos depósitos fluviais pré-vegetação da formação Tombador (mesoproterozóico) na Chapada Diamantina oriental, BA." reponame:Repositório Institucional da CPRM, 2014. http://rigeo.cprm.gov.br/xmlui/handle/doc/14792.

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Submitted by Teresa Cristina Rosenhayme (teresa.rosenhayme@cprm.gov.br) on 2015-07-31T13:34:35Z No. of bitstreams: 1 BBT_tese1.pdf: 29724997 bytes, checksum: 178e5595bec6af7475c6be88efc6dc68 (MD5)<br>Approved for entry into archive by Flasleandro Oliveira (flasleandro.oliveira@cprm.gov.br) on 2015-07-31T19:41:12Z (GMT) No. of bitstreams: 1 BBT_tese1.pdf: 29724997 bytes, checksum: 178e5595bec6af7475c6be88efc6dc68 (MD5)<br>Approved for entry into archive by Flasleandro Oliveira (flasleandro.oliveira@cprm.gov.br) on 2015-07-31T19:41:21Z (GMT) No. of bitstreams: 1 BBT_tese1.pdf: 29724997 bytes, ch

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Turra, Bruno Boito. "Estratigrafia e sedimentologia dos depósitos fluviais pré-vegetação da Formação Tombador (Mesoproterozoico) na Chapada Diamantina Oriental (BA)." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/44/44141/tde-22042015-102049/.

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A presente tese aborda uma revisão crítica acerca do Grupo Chapada Diamantina no contexto do Supergrupo Espinhaço assim como a discussão sobre as características da sedimentação fluvial no passado remoto, em tempos pré-vegetação, confrontada com o registro da Formação Tombador. A Formação Tombador, de idade mesoproterozoica, compreende uma espessa sucessão (de até 400 metros) de arenitos e conglomerados, e representa o preenchimento basal de uma bacia intracratônica aflorante por grande área no interior do Estado da Bahia, em especial na Chapada Diamantina. Levantamentos de campo fora

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Cuadros, Jiménez Federico Alberto. "Caracterização geoquímica e geocronológica do embasamento mesoproterozóico da parte norte da serrania de San Lucas (Colômbia)." reponame:Repositório Institucional da UnB, 2012. http://repositorio.unb.br/handle/10482/11843.

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Dissertação (mestrado)—Universidade de Brasília, Instituto de Geociências, 2012.<br>Capítulo 1, 2, 3 e 5 - Texto em português.<br>Capítulo 4 - Texto em inglês.<br>Submitted by Alaíde Gonçalves dos Santos (alaide@unb.br) on 2012-12-17T10:08:15Z No. of bitstreams: 1 2012_FedericoAlbertoCuadrosJimenez.pdf: 33097913 bytes, checksum: 28e3504da82d90ba6596dba56f44e639 (MD5)<br>Approved for entry into archive by Guimaraes Jacqueline(jacqueline.guimaraes@bce.unb.br) on 2012-12-20T13:51:14Z (GMT) No. of bitstreams: 1 2012_FedericoAlbertoCuadrosJimenez.pdf: 33097913 bytes, checksum: 28e3504da82d90ba6596d

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Cabrera, Rafael Ferreira. "“Geologia, deformação e idade (U-Pb) do grupo campanário, sequência metassedimentar mesoproterozoica no terreno Rio Apa, sul do Cráton Amazônico”." Universidade Federal de Mato Grosso, 2015. http://ri.ufmt.br/handle/1/166.

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Geraldes, Mauro Cesar. "Geoquímica e Geocronologia do Plutonismo Granítico Mesoproterozóico do SW do Estado de Mato Grosso (SW do Cráton Amazônico)." Universidade de São Paulo, 2000. http://www.teses.usp.br/teses/disponiveis/44/44134/tde-26092014-162541/.

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O objetivo deste trabalho é o estudo geocronológico e da composição química dos granitóides da porção SW do estado do Mato Grosso. A abordagem deste projeto tem relevância para o entendimento da evolução geológica através da identificação, na área de estudo, de eventos de acresção crustal durante o Paleo e Mesoproterozóico que vieram a compor significativa fração do SW Cráton Amazônico. Na região do Terreno Jauru, tonalitos, vulcânicas ácidas e gnaisses analisados pelo método U/Pb em zircões apresentam idades de 1790 a 1750 Ma. Análises químicas de rocha total indicam características calcioalc

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Hutton, Laurie James. "Petrogenesis of I- and S-type Granites in the Cape River - Lolworth area, northeastern Queensland - Their contribution to an understanding of the Early Palaeozoic Geological History of northeastern Queensland." Thesis, Queensland University of Technology, 2004. https://eprints.qut.edu.au/15858/1/Laurie_Hutton_Thesis.pdf.

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The geological history of the Early Palaeozoic in eastern Australia is not known precisely. The eastern margin of the outcropping Precambrian Craton 'Tasman Line' is poorly understood. The Thomson Orogen, which underlies much of eastern Queensland, lies to the east of the Tasman Line. Basement to the Tasman Orogenic Zone is poorly understood, but knowledge of this basement is critical to our understanding to the processes that formed the eastern margin of the Precambrian craton. The Lolworth-Ravenswood Province lies to the east of the Tasman Line in northeast Queensland. A study of basement

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Hutton, Laurie James. "Petrogenesis of I- and S-type Granites in the Cape River - Lolworth area, northeastern Queensland - Their contribution to an understanding of the Early Palaeozoic Geological History of northeastern Queensland." Queensland University of Technology, 2004. http://eprints.qut.edu.au/15858/.

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The geological history of the Early Palaeozoic in eastern Australia is not known precisely. The eastern margin of the outcropping Precambrian Craton 'Tasman Line' is poorly understood. The Thomson Orogen, which underlies much of eastern Queensland, lies to the east of the Tasman Line. Basement to the Tasman Orogenic Zone is poorly understood, but knowledge of this basement is critical to our understanding to the processes that formed the eastern margin of the Precambrian craton. The Lolworth-Ravenswood Province lies to the east of the Tasman Line in northeast Queensland. A study of basement

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ROSSET, ALBERTO. "PETROLOGIA DELLE THOLEIITI MESOPROTEROZOICHE (~1,0Ga) DEL CRATONE DI SÃO FRANCISCO-CONGO: ETEROGENEITA' DEL MANTELLO SUPERIORE E FRAMMENTAZIONE DEL SUPER-CONTINENTE RODINIA." Doctoral thesis, Università degli studi di Trieste, 2005. http://thesis2.sba.units.it/store/handle/item/13082.

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Nascimento, Newton Diego Couto do. "Geologia, geocronologia U-PB e SM-ND e petrologia do Migmatito Furna Azul : implicações sobre a evolução crustal mesoproterozoica da Orogenia San Ignácio – SW do Cráton Amazônico." Universidade Federal de Mato Grosso, 2015. http://ri.ufmt.br/handle/1/170.

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Novo, Tiago Amancio. "Caracterização do Complexo Pocrane, magmatismo básico mesoproterozóico e unidades neoproterozóicas do Sistema Araçuaí Ribeira, com ênfase em geocronologia U Pb (SHRIMP e LA ICP MS)." Universidade Federal de Minas Gerais, 2013. http://hdl.handle.net/1843/MPBB-95LNHD.

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The study was conducted in the southern sector of the orogen Araçuaí and extreme north of Ribeira Orogen between parallels 19 ° and 21 ° 45'S, covering a region that is distributed by the states of Minas Gerais, Rio de Janeiro and Espirito Santo. The objective was to characterize the Pocrane Complex, Mesoproterozoic basic magmatism and Neoproterozoic units in the Ribeira-Araçuaí System, with emphasis on U-Pb geochronology (SHRIMP e LA-ICP-MS). The Pocrane Complex is the main focus of the Paleoproterozoic basement studies. It is an orthoderived unit composed of banded hornblende-biotite gneiss

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Gueneli, Nur. "Late Mesoproterozoic Microbial Communities." Phd thesis, 2016. http://hdl.handle.net/1885/109340.

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The first eukaryotes are found in the geological record at ~1.6 Ga, a further 800 million years later they became more abundant and diverse, and only during the Ediacaran did they start shaping ecosystems. This work studies a marine and a lacustrine aquatic ecosystem at the edge of the Mesoproterozoic (~1.1 Ga) to gauge the role of eukaryotes and to investigate the environmental conditions that may have prohibited their proliferation. The evolutionary state of the earliest eukaryotic fossils remains unresolved. The first unambiguous stem group eukaryote appears at 1.2 Ga, but modern ferns occu

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Agangi, A. "Magmatic and volcanic evolution of a silicic large igneous province (SLIP): the Gawler Range Volcanics and Hiltaba Suite, South Australia." Thesis, 2011. https://eprints.utas.edu.au/11722/1/agangi.pdf.

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The Gawler Range Volcanics (GRV) and the co-magmatic Hiltaba Suite (HS) granite form a Mesoproterozoic Silicic-dominated Large Igneous Province (SLIP) cropping out over a vast area in the central Gawler craton, South Australia. Only a few SLIP have been recognised in the world; they occur throughout geological history and in both intraplate and plate margin settings. The igneous province in question, or Gawler SLIP, was emplaced in an intracontinental setting during assembly of the supercontinent Laurentia. Since emplacement, the Gawler craton remained an area of positive relief, allowi

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Voordouw, Ronald Jaap. "Geology of Mesoproterozoic anorthosite intrusions in the vicinity of Nain, Labrador /." 2006. http://collections.mun.ca/u?/theses,111577.

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Bath, A. "Petrography and geochemistry of the mesoproterozoic Gawler Range volcanics, South Australia." Thesis, 2005. https://eprints.utas.edu.au/12962/10/Bath_A_Hons_whole_thesis2005.pdf.

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The Gawler Range Volcanics (GRV), located in the central region of South Australia, represents the eruption of enormous volumes of felsic lava (25,000km3 ) at the beginning of the Mesoproterozoic (~1.59Ga) and is closely associated with the emplacement of the widespread Hiltaba Suite (HS) granites both spatially and temporally. Since the discovery of the Giant Olympic Dam Cu-U-Au-Ag deposit in 1975 (which is intimately related to the emplacement of the HS), both the HS and GRV have attracted vast amounts of attention from research, government and exploration groups. Efforts to understan

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Overocker, Quintin M. "Origin and classification of Middle Wallace breccias, Mesoproterozoic Belt Supergroup, Montana and Idaho." 2006. http://etd.utk.edu/2006/OverockerQuintin.pdf.

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Payne, Justin L. "Palaeo- to Mesoproterozoic evolution of the Gawler Craton, Australia: geochronological, geochemical and isotopic constraints." 2008. http://hdl.handle.net/2440/50045.

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The Gawler Craton, South Australia, consists of late Archaean to early Mesoproterozoic igneous and supracrustal lithologies which preserve a deformation history lasting the duration of the Palaeoproterozoic. Understanding the evolution of the Gawler Craton is of significance in global supercontient reconstructions as it preserves evidence for earliest Palaeoproterozoic collisional orogenesis (c. 2460-2430 Ma) and, in conjunction with the North Australian Craton and Antarctica, has often been correlated to the western margin of Laurentia. In addition, the Gawler Craton is also host to the world

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Bailie, Russell Hope. "Mesoproterozoic volcanism, metallogenesis and tectonic evolution along the western margin of the Kaapvaal Craton." Thesis, 2010. http://hdl.handle.net/10210/3298.

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D.Phil.<br>The western margin of the Archean Kaapvaal Craton, at its contact with the polydeformed and metamorphosed Proterozoic Namaqua Province, is host to four volcanosedimentary successions of Mesoproterozoic age (1.1-1.3 Ga) that occur in close spatial and temporal association to each other. These are the Areachap Group, the Leerkrans Formation of the Wilgenhoutsdrif Group and the two volcanosedimentary successions that comprise the Koras Group. There has been protracted debate as to the exact nature, origin, age and tectonic evolution of these successions, particularly as they occur imme

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McClung, Craig Randall. "Basin analysis of the Mesoproterozoic Bushmanland group of the Namaqua Metamorphic Province, South Africa." Thesis, 2008. http://hdl.handle.net/10210/610.

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The Mesoproterozoic Bushmanland Subprovince of northwestern South Africa forms the western continuation of the transcontinental Namaqua-Natal Metamorphic Province, a crustal domain affected by the 1020-1220 Ma Namaquan Orogeny. Cross-cut by several large faults, the Bushmanland Subprovince can be subdivided into a southern Garies Terrain and northern Aggeneys Terrain. The supracrustal rocks of the Aggeneys Terrain (i.e. Bushmanland Group), comprise a thin (<1 km thick) metavolcano-sedimentary succession composed of a very consistent, shallow marine duplex of sandstone-shale to chemogenic metas

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Hunt, Brian Butler 1971. "Mesoproterozoic structural evolution and lithologic investigation of the western Llano Uplift, Mason County, Central Texas." 2000. http://hdl.handle.net/2152/11294.

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The Llano Uplift of central Texas contains the largest exposure of Mesoproterozoic rocks along southern Laurentia and is thus crucial to the understanding of orogenesis and plate reconstructions along a portion of one of the largest orogens in the world. Most of the current understanding of the Mesoproterozoic tectonic evolution of southern Laurentia comes from the southeastern portion of the Llano Uplift. To fully characterize the tectonic evolution Llano Uplift, detailed mapping is necessary in the less-studied western Llano Uplift. The Mesoproterozoic Llano Uplift exposes mid-crustal, poly

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Marokane, Manoko Maggie. "Petrology and (U-Th)/He Thermochronology of Mesoproterozoic Kimberlites from the eastern Dharwar Craton, southern India." Thesis, 2017. https://hdl.handle.net/10539/25041.

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A dissertation submitted in fulfilment of the requirements for the degree of Master of Science, in the Department of Geosciences, University of the Witwatersrand, Johannesburg, South Africa, 2017.<br>Apatite (U-Th)/He thermochronometry data from two different kimberlite clusters of the Dharwar Craton is used, together with geologic constraints, to develop a model for the burial, uplift, and unroofing history of southern India (i.e. Peninsular India). The apatite helium (AHe) dates for the CC-5 kimberlite at a present-day elevation of 398 m range between 128-235 Ma, with a mean age of 164

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Chalk, H. C. "Mesoproterozoic bimodal magmatism of southern Australia: assessing relative mantle input and implications for IOCG mineralisation prospectivity." Thesis, 2014. http://hdl.handle.net/2440/109703.

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This item is only available electronically.<br>Mesoproterozoic magmatism of the Gawler Craton and the Curnamona Province demonstrates regions of variable mantle input characteristics. Zircons from Hiltaba Suite granitoids and Gawler Range Volcanics, Gawler Craton, return εHf(T) values ranging from +7.1 to -0.4, +2.0 to -7.4, and +0.2 to -5.3 from the western, central, and eastern Gawler Craton respectively. Ninnerie Supersuite granitoids and Benagerie Volcanic Suite, Curnamona Province, return εHf(T) values ranging from +2.5 to -3.8. Mantle input modelling of the central/eastern Gawler Craton

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Ishwar, Kumar C. "Mesoproterozoic Suturing Of Archean Crustal Blocks In Western Peninsular India : New Insights On India-Madagascar Correlations." Thesis, 2015. https://etd.iisc.ac.in/handle/2005/2651.

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The structural lineament mapping of southern India along withgeological, geochronological datasets help in redefining the Precambrian crustal blocks.The newly proposed Kumta and Mercara suture zones welding Archean crustal blocks in western peninsular India offer critical insights into the crustal evolution of Gondwana. The Kumta suturemainly consists of schistose rocks including quartz-phengite, garnet-biotite, chlorite, fuchsite and marble, whereas the Mercara suture contains mylonitic quartzo-feldspathic gneiss, garnet-kyanite-sillimanite gneiss, calc-silicate granulite and metagabbro. Meta

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Ishwar, Kumar C. "Mesoproterozoic Suturing Of Archean Crustal Blocks In Western Peninsular India : New Insights On India-Madagascar Correlations." Thesis, 2015. http://hdl.handle.net/2005/2651.

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The structural lineament mapping of southern India along withgeological, geochronological datasets help in redefining the Precambrian crustal blocks.The newly proposed Kumta and Mercara suture zones welding Archean crustal blocks in western peninsular India offer critical insights into the crustal evolution of Gondwana. The Kumta suturemainly consists of schistose rocks including quartz-phengite, garnet-biotite, chlorite, fuchsite and marble, whereas the Mercara suture contains mylonitic quartzo-feldspathic gneiss, garnet-kyanite-sillimanite gneiss, calc-silicate granulite and metagabbro. Meta

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Brotodewo, A. "Constraints on Mesoproterozoic magmatism and deformation in the southern Gawler Craton, South Australia: magmatism and deformation in Yorke Peninsula." Thesis, 2016. http://hdl.handle.net/2440/120548.

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This item is only available electronically.<br>The ca. 1600–1580 Ma time slice is recognised as a significant period of magmatism and deformation throughout eastern Proterozoic Australia. Within the northern Yorke Peninsula, this period was associated with the emplacement of multiple phases of the Tickera Granite; an intensely foliated orange granite, a white leucogranite and a red granite. These granites belong to the broader Hiltaba Suite that was emplaced at shallow crustal levels, throughout the Gawler Craton. Geochemical and isotopic analysis suggests these granite phases were derived

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