One-Dimensional Thermal Modeling of the Eastern Pontides Orogenic Belt (NE Turkey)

摘要: The eastern Pontides orogenic belt is one of the most complex geodynamic settings in Alpine–Himalayan due to lack systematical geological and geophysical data. In this study, 1D crustal structure P-wave velocity distribution obtained from gravity modeling seismological data area has been used for development thermal model belt. computed temperature-depth profiles suggest a temperature 590 ± 60°C at Moho depth 35 km indicates presence brittle-ductile transition zone. This value might be related water subducted crust Tethys oceanic lithosphere. Curie 29 km, which may correspond magma chambers, found 5–7 km below depth. Surface heat flow density values vary 66.5 104.7 mW m−2. High mantle 48 mW m−2 should melting lithospheric caused by upwelling asthenosphere.