The role of radiogenic heat production in the thermal evolution of a Proterozoic granulite-facies orogenic belt: Eastern Ghats, Indian Shield

Archaean granulite facies metamorphism at the Singhbhum Craton–Eastern Ghats Mobile Belt interface: implication for the Ur supercontinent assembly

“…The interface between the two contrasting terrains can be evaluated through: (a) juxtaposition of dissimilar terrains across major structures, (b) contrasting ages, (c) different heat flows between the juxtaposed terrains, (d) paired gravity anomaly, (e) dipping s. n. mahapatro et al The Bhuban-Hatibari-Nihalprasad area is located at the interface of the Archaean Singhbhum Craton to the north and the Proterozoic EGMB to the south. The heat flow in EGMB is higher than in the SC across this interface (Senthil Kumar et al, 2007). A paired gravity anomaly is present in the area north and south of Bhuban-Hatibari-Nihalprasad area (Kumar et al, 2004) with EGMB having steep-dipping (−50 to +30 mGal) higher gravity signatures and nearly uniform low~−60 mGal gravity values in the adjacent cratonic areas (Ramesh et al, 2010).…”

The thermal–mechanical evolution of crustal orogenic belts at convergent plate boundaries: A reappraisal of the orogenic cycle

“…The efficiency of heat production via radioactive decay is directly proportional to the concentration of U, Th and K (Jaupart et al, 1981). Radioactive heat production for typical crustal rocks covers a large spectrum, the most productive being granitoids and pelites (1-4 W/m 3 ) (Chamberlain and Sonder, 1990;Vigneresse, 1990;Hyndman and Lewis, 1995;McLaren et al, 1999;Sandiford and McLaren, 2002;Senthil Kumar et al, 2006). Thus, the contribution of heat producing elements is far from negligible if the orogenic belt is composed mostly of granitic rocks and their erosional pelitic products and if the less radioactive lower crust is subducted instead of accreted.…”

A review for genesis of continental arc magmas: U, Th, K and radiogenic heat production data from the Gümüşhane Pluton in the Eastern Pontides (NE Türkiye)

“…The distribution of 238 U, 232 Th and 40 K elements and RHP values contributes a significant knowledge on deep thermal structure, crustal evolution, convective mechanism in the mantle and the thermal history of the Earth (Mareschal et al, 2000, Singh andManglik, 2000;Ray et al 2003;Kumar and Reddy, 2004;Perry et al, 2006;Kumar et al, 2007;Ray et al 2008;Mareschal and Jaupart, 2013). RHP is fairly related to lithological and geochemical properties of the rocks (Kirti and Singh, 2006).…”