Summary
Heat-flow density determinations were made in South Portugal. The region of study covers the Algarve Basin, the South Portuguese Zone, part of the Ossa Morena Zone and part of the Lusitanian Basin.
Two sets of data were used to obtain heat-flow density values in this region: 13 determinations were made in boreholes under equilibrium conditions and 4 determinations in oil exploration boreholes.
Gravity and aeromagnetic data were used to constrain the interpolation of the heat-flow density isolines in the South Portuguese Zone and part of the Ossa Morena Zone.
Seismic data were used to model two-dimensional heat transfer through a vertical cross section located in the South Portuguese Zone.
The radiogenic heat source distribution was estimated using a relationship between seismic velocity (Vp) and radiogenic heat production (A).
A temperature profile was computed taking into account the effect of temperature on thermal conductivity and on the seismic velocity.
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References
M. Julivert, F. J. Martinez, A. Ribeiro: The Iberian segment of the European Hercynian foldbelt. In: Coll C6 (Géologie de l'Europe du Précambrien aux bassins sédimentaires post-hercyniennes),26 (1980), CGI, BRGM, 132–158.
L. A. Mendes-Victor, A. Correia, M. R. Duque, C. Maciel, S. Camelo, L. C. Almeida: Primeiras determinações de fluxo de calor em Portugal. Boletim Informativo do INMG,56 (1982), 3–13.
M. R. Duque, L. A. Mendes-Victor: Heat flow and thermal gradients in Portugal., Proceedings of the 5th EGT workshop- The Iberian Peninsula-Estoril, (1988), 131–136.
F. W. Jones, C. Kushigbor, H. L. Lam, J. A. Majorowicz, M. Rahman: Estimates of terrestrial thermal gradients and heat flow variations with depth in the Hinton-Edson area of the Alberta Basin derived from petroleum bottom-hole temperature data. Geophys. Prospecting,32 (1984), 1111–1130.
G. Vasseur, F. Lucazeau, R. Bayer: The problem of heat flow density determination from inaccurate data. Tectonophysics,121, (1985), 25–34.
M. Reiter, J. K. Costain, J. Minier: Heat flow data and vertical groundwater movement, examples from Southwestern Virginia. J. Geophys. Res.,94 (1989), 12423–12431.
I. Vitorello, H. N. Pollack: On the variation of continental heat flow with age and the thermal evolution of continents. J. Geophys. Res.,85 (1980), 983–995.
J. G. Sclater, B. Parsons, C. Jaupart: Oceans and continents: similarities and differences in the mechanisms of heat loss. J. Geophys. Res.,86 (1981), 11535–11552.
A. Rimi, F. Lucazeau: Heat flow density measurements in northern Morocco. J. African Earth Sci.,6 (1987), 835–843.
J. F. Albert-Beltran: Heat flow and temperature gradient data from Spain. In: V. Čermák and L. Rybach (Editors), Terrestrial Heat Flow in Europe. Springer Verlag, (1979), pp 262–266.
M. W. McElhinny: Palaeomagnetism and Plate Tectonics. Cambridge University Press, (1979), 358 pp
V. Richard: Exploration par la Gravimétrie des Cibles Minieres Profondes: Application de deux Techniques Inverses. Exemple de Neves Corvo-Portugal. Documents et Travaux du Centre Géologique et Géophysique de Montpellier, Montpellier, (1984), 199 p
S. Mueller, C. Prodehl, A. S. Mendes, V. S. Moreira: Crustal structure in the Southwestern part of the Iberian Peninsula. Tectonophysics,20 (1973), 307–318.
L. Torres, M. Lisboa: Standardization of gravity and magnetic data of part of Iberia including offshore data. Proceedings of the 5th EGT workshop-The Iberian Peninsula, 1988, 111–121.
R. Haenel, E. Staroste (Editors): Atlas of geothermal Resources in the European Community Austria and Switzerland. Commission of the European Communities, Luxembourg, (1988).
V. Čermák, L. Bodri, B. Tanner: Deep crustal temperature along the Central segment of the EGT. Proceedings of the Sixth EGT workshop, (1990), 423–429.
P. Y. Shen, K. Wang, A. E. Beck: Two-dimensional inverse modeling of crustal thermal regime with application to East European Geotraverses. J. Geophys Res.,95 (1990), B12, 19903–19925.
J. F. Schatz, G. Simmons: Thermal conductivity of Earth materials at high temperatures. J. Geophys. Res.,77 (1972), 6966–6983.
V. Čermák: Crustal heat production and mantle heat flow in Central and Eastern Europe. Tectonophysics,159 (1989), 195–215.
J. M. Miranda: O levantamento aeromagnético de Portugal. Contribuição para o conhecimento da estrutura geológica do continente português. PhD. Thesis, Lisbon University, (1989), 155 pp.
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Duque, M.R., Mendes-Victor, L.A. Heat flow and deep temperature in South Portugal. Stud Geophys Geod 37, 279–292 (1993). https://doi.org/10.1007/BF01624601
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DOI: https://doi.org/10.1007/BF01624601