Fig. 3: Geotherms of the crust and lithospheric mantle beneath orogenic belts.
From: Crustal melting in orogenic belts revealed by eclogite thermal properties
a Sulu UHPM belt, b Himalaya-Tibet. The thick purple and light blue curves indicate the geotherm profiles calculated based on heat generation of 0.02 μWm−3 in the depleted mantle and 0.18 μWm−3 in the enriched mantle51, respectively. Solid black line: solidus of wet granite54; thick light cyan dashed line: dehydration melting curve of phengite53; thick green line: mantle adiabatic line (Tm = 1573 + 0.3z where z is depth). The intersection between the calculated geotherm profile and mantle adiabatic line indicates the thickness of the lithosphere, and the intersection between the geotherm profile and Moho discontinuity indicates the Moho temperature. P-T-t paths: The thick dark red line with arrows in a represents the Sulu UHPM belt21, 58, 60. The thick red and orange lines with arrows in b represent the Southern Tibet (S-T)38, 64 and Kaghan and Tso Morari (K-TM) terranes63, respectively.
