A geochemical and isotopic perspective on tectonic setting and depositional environment of Precambrian meta-carbonate rocks in collisional orogenic belts

Spatial distribution of ultrahigh-temperature granulites of the Highland Complex of Sri Lanka: Lowermost continental crust above an ultrahot palaeo-Moho

“…In this context, the double-sided subduction model of Santosh et al, 2014 andHe et al, 2016, was revised by Malaviarachchi (2018) and Satish-Kumar et al (2021), suggesting a 'two-staged subduction' concept, with noncoeval arc segments of WC and VC. In these papers, the HC has been treated as a segment of a suture zone of the Neoproterozoic Mozambique ocean that was dominated by trench-fill sediments.…”

Carbon isotopic composition of graphite in metamorphic rocks from Lützow-Holm Complex, East Antarctica: Implications for carbon geodynamic cycle in continental crust

“…Carbon and its geodynamic cycle in tectonically active convergent margins play a significant role in controlling the Earth's carbon budget (e.g., Dasgupta, 2013;Kelemen and Manning, 2015;Plank and Manning, 2019;Muller et al, 2022). Organic carbon and carbonate carbon are two key reservoirs that acts as source or sink for carbon in convergent margins during plate subduction, arc magmatism and continent building processes (Mills et al, 2019;Wong et al, 2019;Satish-Kumar et al, 2021a, Li et al, 2022. Decarbonation and devolatilization reactions are important in subduction zones, since they control the recycling mechanism of surface carbon to interior of the Earth (e.g., Kerrick and Connolly, 2001;Dasgupta, 2013;Muller et al, 2022).…”