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1.3 Conceptual Models of Geothermal Reservoirs  25














                                                                               centers

                                                                               lava
                                                                               historic

                                                                               and prehistoric


                                Geothermal map of Iceland                      within  located









                                                                               fields  are

                                                                               geothermal


                                                                Hengill        main

                                                                               The  zone.  rift
                                                                               Iceland.  active


                                              Eurasian  Plate  Kraffa          of  map  the  within


                                                      Iceland
                                             Ridge
                                              Mid-Atlantic      Atlantic ocean  Geothermal  lavas,
                                              North American  Plate  Thingvellir  Reykjanik  Mid-Atlantic ridge  1.13  Figure  interglacial  and
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