Characteristics of the isothermal surfaces of Curie point and solidus temperature (asthenosphere) in the lithosphere of Bulgaria
© T. Dobrev , D.Yosifov, S. Dimovski
Schematic maps of the depths towards the isothermal surfaces of Curie point (Tc=600°C) and solidus temperature (Tsol=1200°C) are developed for the territory of Bulgaria. On the base of the performed zoning the main positive and negative thermal areas are distinguished. In accordance with the developed scheme of the asthenosphere surface a possible model is presented for the changes in the lithosphere thickness and for its structural elements in the main tectonic block formations on the territory of Bulgaria.