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Relevant bibliographies by topics / Petrology Chile

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Academic literature on the topic 'Petrology Chile'

Author: Grafiati

Published: 4 June 2021

Last updated: 6 February 2022

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Dissertations / Theses on the topic "Petrology Chile"

1

Matthews, Stephen John. "Volcanology, petrology and geochemistry of Lascar Volcano, northern Chile." Thesis, University College London (University of London), 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.283332.

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2

Weller, Derek James. "A large late-glacial eruption of the Hudson Volcano, Southern Chile." Thesis, University of Colorado at Boulder, 2015. http://pqdtopen.proquest.com/#viewpdf?dispub=1590001.

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<p> Lakes formed in the Aysén region of southern Chile after the retreat of mountain glaciers, beginning by at least ~17,900 cal yrs BP, contain numerous late-glacial and Holocene tephra layers derived from >70 eruptions of the volcanoes in the region, including Hudson, the southernmost in the Andean Southern Volcanic Zone (SVZ). Sediment cores from six of these lakes each contain an unusually thick late-glacial age tephra layer, which based on its distribution and bulk trace-element composition was derived from a large explosive eruption of the Hudson volcano between 17,300 and 17,440

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3

Gardeweg, Moyra C. "The geology, petrology and geochemistry of the Tumisa volcanic complex, north Chile." Thesis, Kingston University, 1991. http://eprints.kingston.ac.uk/20550/.

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Tumisa (5,658 m) is a Pleistocene composite volcano located in the western margin of the Upper Cenozoic volcanic chain of the CVZ in northern Chile. It consists of a ~ 25 km[sup]3 non-welded deposit of block-and-ash flow and small-volume ignimbrites, small flank domes and a double peak formed by two cones, the younger a composite of lava flows and domes. The lava flows, domes and blocks of the pyroclastic flows are coarse-grained, crystal-rich dacite (host lava) with dominant plagioclase (An[sub]30-50) and magnesio-hornblendes with different proportions of orthopyroxene (En[sub]62-68), biotite

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4

Gerlach, David Christian. "Geochemistry and petrology of recent volcanics of the Puyehue-Cordon Caulle Area, Chile (40.5S̊)." Thesis, Massachusetts Institute of Technology, 1985. http://hdl.handle.net/1721.1/60119.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, 1985.<br>Microfiche copy available in Archives and Science.<br>Folded map in pocket at back of thesis.<br>Bibliography: leaves 369-388.<br>by David Christian Gerlach.<br>Ph.D.

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5

van, Alderwerelt Brennan Martin Edelman de Roo. "Diverse monogenetic volcanism across the main arc of the central Andes, northern Chile." Diss., University of Iowa, 2017. https://ir.uiowa.edu/etd/5668.

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Instances of fault-controlled monogenetic volcanism across the subduction arc of the Central Andes at ~ 23°S illuminate the nature of different parental melts being delivered to the crust. Evidence of magmatic history is preserved in bulk rock geochemistry, the content of melt inclusions, and mineral compositions. Volcanism in this region is dominated by felsic and intermediates lavas as the thickened crust (55 – 65 km) and vast volumes (> 500,000 km3) of mid-crustal magma beneath the Altiplano-Puna high plateau region prevent mafic magmas from reaching the surface (Davidson & De Silva, 1991;

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6

Soto, Emmanuel. "Identifying the Origins of Volcanic Ash Deposits Using Their Chemical and Physical Compositions." FIU Digital Commons, 2018. https://digitalcommons.fiu.edu/etd/3650.

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Recent ocean sediments collected offshore Chile by Ocean Drilling Program Leg 202 contained layers of volcanic ash of unknown origin. These deposits may have originated from sources in the Southern Volcanic Zone (SVZ) within the Andean Volcanic Belt to the east, or from explosive volcanoes in the southwestern Pacific transported by westerly prevailing winds. In this study, mineral and glass textures and compositions of Leg 202 ashes were evaluated to try to determine the sources of the ash layers. Ash fragments were imaged and analyzed for major elements using an SEM with X-Ray detector and fo

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7

Martínez, Ramírez Paula Antonieta. "Petrología y geoquímica de lavas recientes, al noroeste del campo geotermal del Tatio." Tesis, Universidad de Chile, 2014. http://repositorio.uchile.cl/handle/2250/131076.

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Geóloga<br>Los centros eruptivos Paniri, Cerro Lavas de Chao, Cerro del León y Toconce conforman una cadena volcánica de orientación NW-SE ubicada inmediatamente al NW del sistema geotermal del Tatio, en la segunda región de Antofagasta, Chile. Tienen una edad aproximada Pleistocena y según dataciones U/Pb realizadas en circones, el extremo NW de la cadena sería el más joven (Paniri y Chao, de edades similares), y el extremo SE el más antiguo (Toconce). La cadena está formada por tres estratovolcanes y un flujo de lava tipo Coulée, de composiciones dacíticas ricas en piroxeno y biotita. Es

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8

Bidart, Orellana Nicole Andree. "Petrología y geoquímica de lavas recientes, al sureste del campo geotermal del Tatio." Tesis, Universidad de Chile, 2014. http://repositorio.uchile.cl/handle/2250/131075.

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Geóloga<br>Los centros eruptivos Cerro Volcán, Cerro La Quebrada, Volcán Tatio y Cerro La Torta, presentan litologías correspondientes a andesitas de anfíbola, andesitas de piroxeno y riolítas de anfíbola y biotita, calcoalcalinas de alto K, y se edifican por sobre los 4000 m.s.n.m. al sureste del campo geotermal del Tatio, en la Zona Volcánica Central (ZVC), Andes. La evolución de ellos toma lugar en el Pleistoceno Inferior-Superior, con una actividad predominantemente efusiva y litología caracterizada por: (1) gran proporción de fenocristales (20-45%); (2) rango composicional amplio (58-70%S

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9

Cooper, Percker Oliver Glenn. "Petrología y geoquímica de la Isla San Félix, Pacífico Suroriental." Tesis, Universidad de Chile, 2014. http://repositorio.uchile.cl/handle/2250/131355.

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Geológo<br>Las islas San Félix (26°17'30"S / 80°5'53"O) y San Ambrosio (26°20'40"S / 79°53'11"O) corresponden a fragmentos de dos edificios volcánicos separados entre sí por 20 km aproximadamente, siendo San Félix la isla más occidental. Estas islas, en conjunto con el islote González y pequeñas estructuras volcánicas, representan la parte superior de un gran volcán escudo con forma elongada de rumbo noroeste que se levanta sobre la placa de Nazca. Con el fin de identificar los procesos que han controlado la evolución magmática de la isla San Félix, se realiza un estudio geoquímico y petrográ

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10

Ramírez, Meneses Valeria Carolina. "Plutonismo del Carbonífero Superior y Jurásico Medio en el Tramo Costero entre Laguna Verde y Tunquén (33° 05’ - 33° 15’ s), Chile Central." Tesis, Universidad de Chile, 2010. http://www.repositorio.uchile.cl/handle/2250/103983.

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En el sector costero entre Laguna Verde y Punta Gallo afloran de manera continua rocas del Carbonífero Superior. Están intruidas y en contacto por falla con rocas de edad jurásica. En este trabajo se estudió la anatomía plutónica y las relaciones de contacto entre las litologías del Jurásico Medio y del Carbonífero Superior. En particular se investigó la relación de estos últimos con rocas básicas del sector de Quintay. Se obtuvieron además edades U-Pb por SHRIMP II en circones para un gabro de hornblenda y piroxeno (168,9 ± 1,4 Ma) al sur de Playa Quintay y para una granodiorita néisica (311.

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