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Title: Lithosphere Thickness, Heat Flow and Moho Depth in the South of Portugal
Authors: Duque, Maria Rosa
Keywords: Lithosphere thickness
heat flow data
thermal models
seismic data
crustal depth
average values.
Issue Date: Sep-2016
Citation: Duque, M. R., 2016.Lithosphere Thickness, Heat Flow and Moho Depth in the South of Portugal. Comunicação oral, apresentada no WMESS2016, Praga (República Checa ), 5 a 9 de Setembro de 2016.
Abstract: ABSTRACT In the last years, several models were presented trying to obtain lithosphere and Moho thickness in the Iberian Peninsula, using data related to geoid elevation and topography, gravity, seismicity and thermal analysis. The results obtained show a decrease in the thickness of the crust and the lithosphere in the SW part of the Iberian Peninsula. Density anomalies in the crust are also referred. The work I intend to present is related with the south of the Ossa Morena Zone, the South Portuguese Zone and the Algarve, in the south of Portugal. Data obtained in the region was collected and deviations from average values used were detected. Models were made taking into account the specific characteristics of the region. Heat flow, thermal conductivity, heat production, topography, gravity, seismic and geological data available for the region, are used to adapt the models. A special attention will be given to the spatial variation of heat flow values and to Moho depth in the region. The results show that this region is different from other parts of the Iberian Peninsula and a special attention must be given to it. The different values obtained using seismic, gravity, and geoid height data, and the results obtained with models using thermal data shows the importance of trying to know and understand the thermal structure of the regions. Problems related with the use of average values will be focused.
Type: lecture
Appears in Collections:FIS - Comunicações - Em Congressos Científicos Internacionais

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