SPBA - Petroleum geological atlas of the Southern Permian Basin - Fig. 2.29
Figure 2.29 from the SPBA: Temperature level at 3000 m. Data sources: Belgium – Legrand (1975); Vandenberghe & Fock (1989); Netherlands – temperature data from bottom-hole temperature measurements (from TNO); Germany – Schellschmidt (2007); Poland – deep drillhole temperature data from Polish geothermal database (Polish Geological Institute).
The Southern Permian Basin Atlas (SPBA) project is a joint project of the Geological Surveys of the United Kingdom, Belgium, Denmark, the Netherlands, Germany and Poland and was initiated by Ken Glennie. The atlas was published in May 2010 in both paper and digital format. The project has been supported by a wide range of petroleum E&P companies, licensing authorities, research institutes and universities.