Figure 1From: How do permeable fractures in the Triassic sediments of Northern Alsace characterize the top of hydrothermal convective cells? Evidence from Soultz geothermal boreholes (France) Geological cross section based on seismic reflection profiles. Numerous large-scale crustal faults originate in the basement and cross the sedimentary cover. Oil wells and the geothermal boreholes GPK-1, GPK-2, GPK-3, and GPK-4 are projected onto the cross section (after Cautru 1988; re-draw by Koelbel et al 2011).Back to article page