Thermal models, lithosphere thickness and heat flow in South Portugal. Some comments about the subject

• Main Author: Duque, Maria Rosa Alves
• Format: Lecture
• Language: Portuguese
• Published: EGU General Assembly 2016
• Subjects: Fluxo de calor; Condutividade térmica; Gradiente de temperatura; Litosfera; Profundidade da Moho; Greenland; Morena; Antarc*; Antarctica
• Online Access: http://hdl.handle.net/10174/18822

Reinterpretation of old heat flow data or use of new data and new techniques of detection of the temperature under the surface have conducted to new heat flow density values in some regions of the globe. The problem of ice melting in Greenland and Antarctica caught the public's attention to the importance of knowledge on heat flow values and thermal structure of the globe. In the last years, several models were presented trying to obtain lithosphere and Moho thickness of the Iberia Peninsula. The work we intend to present is related with the SW part of the Iberia Peninsula ( south of the Ossa Morena zone, South Portuguese Zone and Algarve). The results obtained show a decrease in the thickness of the crust and the lithosphere in this region. Density anomalies in the crust are also referred. I intend to make the connection between the results of these models and the heat flow thermal conductivity, heat production and geological data available for the region, trying to explain the results of heat flow density data obtained.