Seismic Crustal Structure
Mostrando 1-3 de 3 artigos, teses e dissertações.
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1. The use of seismic tomography to describe the upper crustal structure beneath the Chalupas Caldera, Ecuador
Abstract The Chalupas Caldera is a rhyolitic volcano located in the Eastern Cordillera to the Southeast of the Cotopaxi Volcano in the Ecuadorian Andes. It is supposedly fed by a huge magmatic chamber below the caldera. For studying the Chalupas magmatic chamber, the tomographic models obtained by a Tarantola-Valette inversion and studied previously in the e
REM, Int. Eng. J.. Publicado em: 2021-06
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2. "Crustal structure of central sector of Tocantins Province by using P and S waves as well as reflected phases with deep seismic refraction data" / "Estrutura crustal do setor central da província Tocantins utilizando ondas p, s e fases refletidas com dados de refração sísmica profunda"
Esta pesquisa está baseada na execução de duas linhas de refração sísmica profunda de 300 km de extensão (L1-Porangatu e L2-Cavalcante) atravessando de oeste para leste o setor central da Província Tocantins, utilizando em cada linha 120 sismógrafos digitais e explosões com tempo controlado e cargas entre 500 e 1000 kg de explosivos a cada 50 km; f
Publicado em: 2006
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3. Gravity crustal model for an andean section at 32° s considering upper mantle lateral density variation
Up to date, three gravity models for the Andean section at 32° south latitude have been published. Two of them did not have seismic reflection/refraction data to constrain the subsurface geometry. The other one included seismic data to fit thicknesses and determined density contrasts using velocity-density curves. Furthermore, all previous models assumed a
Revista Brasileira de Geofísica. Publicado em: 2000-08