34,875 research outputs found
Oral History Interview with Daniel Acevedo, June 29, 2015
No full textInterview with Daniel Acevedo, civil rights activist from Pharr, Texas. He discusses his early life, education, involvement with the Chicano movement, Colegio Jacinto Treviño, and civil rights activism in South Texas
The Estimated Basement of the Fuegian Andes Mesozoic Stratigraphic Series and tThose Rocks Regarded as Pre-Mesozoic in Age
No full textThe role of the Serie Porfirítica as basement is known, as a consequence of the regional extension of the quartz porphyries in Patagonia. This would be a restricted concept of the word basement. Besides this aspect, it is of interest to note the leptometamorphic rocks seen on the coastal area of the Parque Nacional Tierra del Fuego (Tierra del Fuego National Park) and neighbouring areas. They could be regarded as the basement of the Mesozoic marine column.Fil: Acevedo, Rogelio Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentin
The Cretaceous Layers Later than the Early Cretaceous
No full textThe marine continuity after the Early Cretaceous implies an essential difference with the condition in the orogenic belt with a N-S trend of the Patagonian Cordillera. But this important difference does not avoid the matter concerning if these Late Cretaceous layers have been in fact involved in the same folding complexity as the Early Cretaceous ones, with slight metamorphism. The available information results, at present, not complete enough to adjust a formational definition.Fil: Acevedo, Rogelio Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentin
Daniel Reyes Llinás, guitarra (Colombia)
No full textConcierto interpretado por el guitarrista Daniel Reyes Llínas. Reyes nació en Bogotá en 1978. Se inició en el rock en el cual se destacó con su banda "Bhang" que participó en el Salón Nacional de Artistas en 1998. Tomó clases con Carlos Castilla y posteriormente ingresó a la cátedra de guitarra de la Universidad de los Andes bajo la tutela de Carlos Rocca Lynn y posteriormente con Jaime Arias Obregón. Formó parte del Cuarteto de los Andes que participó en talleres con Leo Brouwer y Entrequatre, cuarteto de guitarras español
Western Sector of the Fuegian Andes Deformed Complex (FADC-WS)
No full textThe Mesozoic complex starts here from the simplest chrono-stratigraphic chart, consisting of a thick marine layer of Late Jurassic-Early Cretaceous age, superimposed to Jurassic volcanic and sedimentary rocks and overlain by Late Cretaceous marine sedimentary rocks, the whole sequence folded and metamorphosed. The marine Tertiary, folded as well, is overlying all the aforementioned units. Underlying the whole group there is a possible metamorphic basement. In this sense, several formations have been proposed, what in certain ways make much more complex the matter at the same time that they contribute to build a richer system of order and classification.Fil: Acevedo, Rogelio Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentin
Eastern Sector of the Fuegian Andes Deformed Complex (FADC-ES)
No full textThe FADC-ES comprises the territories located east of an imaginary line projected from Bahía Aguirre to Policarpo Cove, known as Península Mitre . The Montes Negros and Atocha, Campana and Pirámide hills are situated there, at the southern coast, and the Arriola, Real and Bilbao hills, at the northern coast. Beyond the Straits of Le Maire, the Isla Grande de Tierra del Fuego is separated from Isla de los Estados, whose geologic continuity with the previous locality allows its inclusion as part of the Eastern Deformed Complex. The Deformed Complex of the Fuegian Andes in its eastern sector presents a clearer stratigraphic richness than in the western sector previously described in very significant correspondence with the geological features of Isla de los Estados.Fil: Acevedo, Rogelio Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentin
Comunicación del gobernador del Distrito capital, Daniel J. Reyes
No full text4 ImágenesCarta del gobernador del Distrito Capital, Daniel J. Reyes, en respuesta a una circular que se le había remitido días atrás. Fechada en Bogotá
Geoethics
No full textGeoethics is a key discipline in the field of Earth and Planetary Sciences, which includes scientific, technological, methodological and social-cultural aspects (e.g. sustainability, development, museology), but also the necessity of considering appropriate protocols, scientific integrity issues and a code of good practice, regarding the study of the abiotic world. Geoparks and Geosites are excellent initiatives too, not only for the Earth, but also for the Moon, Mars and beyond, which are narrowly related with the ethical approach.Fil: Acevedo, Rogelio Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; ArgentinaFil: Martínez Frías, Jesús. Consejo Superior de Investigaciones Científicas; Españ
Acidity and Alkalinity as Foundational Parameters in the Ordering of Eruptive Rocks and some Fuegian examples
No full textIt is feasible to obtain a comprehensive ordering of eruptive rocks basedon two fundamental criteria: acidity and alkalinity. These concepts are eminentlychemical, but it must be kept in mind that the chemistry of the main elements can bededuced starting from the mineralogical proportions refining the study of each rockforming mineral. Both of Johannsen and Streckeisen classifications, and IUGS orInternational Union of Geological Sciences recommendations also, are quantitativemineralogical,which provide a strict nomenclatural reference but demonstrate difficultyin establishing the proportions of minerals. This natural difficulty, extreme invulcanites, is not present in chemicals and normative classifications, but in this lastcase the rock loses its true petrographic spirit, established by the real minerals, afterwhich the crystallization history and the rock understanding are. This preference formineralogical classifications does not invalidate the importance of other based onchemical compositions. This simple chart contains eleven boxes from the combinationof four columns (UB or ultrabasic, B or basic, M or mesosilicic, and A oracid) with three groups (I or calc-alkaline, II or subalkaline, and III or alkaline). Alleruptive rocks fit there. AIII field doesn?t exist due to foids are incompatible withquartz. At last, an addendum about potassic and sodic trends as alkali elements incommon minerals is included. The conclusion is that the difference between sodicalbite and the rest of plagioclases is as important as the difference between sodicalbite and potassic feldspar. Mineralogical changes of great petrogenetic significanceonly could represent subtle chemical changes and don?t reflect variances inthe classificatory charts.Fil: Acevedo, Rogelio Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina. Universidad Nacional de Tierra del Fuego; Argentin
Jesse Reyes oral history interview.
No full textOral history interview with Jesse Reyes conducted by Daniel Sanchez on Feb. 5, 2010, in Midland, Tex. Accompanied by 1 finding aid.Jesse Reyes talks about his education at Texas Technological College and his music career. He is a former member of Los Premiers which was famous for its Chicano music in West Texas. The band was inducted into the Buddy Holly Walk of Fame in 1997
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