Relevant bibliographies by topics / Mafic magmatism

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Academic literature on the topic 'Mafic magmatism'

Author: Grafiati
Published: 4 June 2021
Last updated: 29 January 2023

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Dissertations / Theses on the topic "Mafic magmatism"

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Vásquez, Parra Mónica Fernanda. "Mafic magmatism in the Eastern Cordillera and Putumayo Basin, Colombia : causes and consequences." Phd thesis, Universität Potsdam, 2007. http://opus.kobv.de/ubp/volltexte/2007/1318/.

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The Eastern Cordillera of Colombia is mainly composed of sedimentary rocks deposited since early Mesozoic times. Magmatic rocks are scarce. They are represented only by a few locally restricted occurrences of dykes and sills of mafic composition presumably emplaced in the Cretaceous and of volcanic rocks of Neogene age. This work is focused on the study of the Cretaceous magmatism with the intention to understand the processes causing the genesis of these rocks and their significance in the regional tectonic setting of the Northern Andes. The magmatic rocks cut the Cretaceous sedimentary succe
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Maurice, Charles. "The Precambrian mafic magmatism of the Northeastern Superior Province, Canada." Thesis, McGill University, 2009. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=66736.

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Major, trace and rare earth elements (REE), along with Nd isotopes and U-Pb ages, were determined for Archean greenstone belts (2.88-2.72 Ga) and Paleoproterozoic mafic dyke swarms (2.51-2.00 Ga) of the Northeastern Superior Province (NESP) of Canada in order to gain insights on the nature of mafic magmas across the Precambrian. Geographically separate, but coeval (2.78 Ga), greenstone assemblages with distinctive Fe-tholeiites occur across a large surface area of the NESP. This geographic separation, along with the numerous inheritance ages of greenstone lithologies that rep
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Vásquez, Parra Mónica Fernanda. "Mafic magmatism in the Eastern Cordillera and Putumayo Basin, Colombia causes and consequences /." [S.l.] : [s.n.], 2007. http://opus.kobv.de/ubp/volltexte/2007/1318.

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4

Cai, Keda, and 蔡克大. "Magmatism and tectonic evolution of the Chinese Altai, NW China: insights from the paleozoic mafic andfelsic intrusions." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2011. http://hub.hku.hk/bib/B47147192.

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Strack, Cody M. "Petrologic Study of the Danburg, Sandy Hill, and Delhi Intrusions: Constraints on Magmatism in the Southern Appalachians." Ohio University / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1439388136.

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6

Simões, Matheus Silva. "O Complexo máfico-ultramáfico Mata Grande, São Sepé, RS : petrologia e geocronologia." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2014. http://hdl.handle.net/10183/94681.

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O Complexo Máfico-Ultramáfico Mata Grande (CMG), localizado no município de São Sepé, porção NW do Escudo Sul-Rio-Grandense, é uma intrusão máfico-ultramáfica com cerca de 5 km2 que mantém contatos através de falhas normais com gnaisses do Complexo Cambaí ao SW e ao SE, e com as rochas sedimentares da Bacia do Paraná ao N. O contato com os xistos magnesianos e serpentinitos do Complexo Arroio Lajeadinho situados ao leste é intrusivo. Foram descritas três unidades de rochas cumuláticas: Unidade Máfica (UM), Unidade Ultramáfica (UUM) e Unidade Transicional (UT). A principal estrutura primária é
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7

Turnbull, Rose Elizabeth. "Mafic-Felsic interaction in a high level magma chamber - The Halfmoon Pluton, Stewart Island, New Zealand: Implications for understanding arc magmatism." Thesis, University of Canterbury. Geological Sciences, 2009. http://hdl.handle.net/10092/3503.

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Field evidence from exposed plutonic rocks indicates that mafic-felsic magma interaction is an important process during the construction and evolution of magma chambers. The exhumed, ~140 Ma, Halfmoon Pluton of Stewart Island, New Zealand is characterized by a sequence of mingled mafic sheets and enclaves preserved within an intermediate-felsic host, and provides a unique opportunity to directly investigate the physico-chemical processes that operate within an arc setting. Interpretation of mingling structures and textures in the field, in combination with extensive petrographic, geochemical a
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Allen, Tara Laine. "Mafic Alkaline Magmatism in the East Tintic Mountains, West-Central Utah: Implications for a Late Oligocene Transition from Subduction to Extension." BYU ScholarsArchive, 2012. https://scholarsarchive.byu.edu/etd/2938.

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Voluminous Eocene to Oligocene intermediate to silicic volcanic rocks related to subduction erupted throughout the Great Basin and were supplanted by bimodal eruptions of basalt and rhyolite related to extension in the Miocene. Locally, in the northern East Tintic Mountains of central Utah, this important transition is marked by a distinctive package of mafic alkaline magmas that reveal important details about the nature of this fundamental change. A late Oligocene anorthoclase-bearing shoshonite lava in the Boulter Peak quadrangle contains megacrysts of anorthoclase, with phenocrysts of olivi
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Wiegand, Miriam [Verfasser], and R. [Akademischer Betreuer] Greiling. "Magmatism and rifting at the South Atlantic margin: Magma transport and emplacement mechanisms of mafic dykes from magnetic studies / Miriam Wiegand ; Betreuer: R. Greiling." Karlsruhe : KIT-Bibliothek, 2016. http://d-nb.info/113116900X/34.

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10

Pochon, Anthony. "Magmatisme mafique et minéralisations Sb-Au dans le domaine Centre Armoricain : contrôles spatio-temporels et implications metallogéniques." Thesis, Rennes 1, 2017. http://www.theses.fr/2017REN1S101/document.

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Au sein de la croûte terrestre, une grande partie des processus de mobilisation et redistribution des métaux résulte de circulations de fluides à grande échelle. Par conséquent, c’est un paramètre clé dans la formation de nombreux types de gisements variés. Les zones de déformation étant les vecteurs principaux des circulations de fluides, la plupart des gisements d’or (Au) et d’antimoine (Sb) se retrouvent localisés au sein des ceintures orogéniques. Le Massif Armoricain constitue un segment de la chaîne varisque ouest-européenne et contient de nombreux gisements à Sb-Au. L’objectif de cette
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