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Coesite inclusion in garnet, partially replaced by quartz (UHP Brossasco-Isasca Unit, western Alps) (XPL)

Metamorphic evolution of continental crust units at 'extreme' conditions

Evoluzione metamorfica di unità di crosta continentale in condizioni estreme



ERC Sectors

PE10_5 - Geology, tectonics, volcanology
PE10_10 - Mineralogy, petrology, igneous petrology, metamorphic petrology
PE10_11 - Geochemistry, cosmochemistry, crystal chemistry, isotope geochemistry, thermodynamics


This research aims at investigating, from a geologic, petrologic, geochemical and geochronologic perspective, various metamorphic terranes from different orogenic contexts characterized by different ages but all representing portions of continental crust which experienced a metamorphic evolution at “extreme” conditions, i.e. at high/ultrahigh pressure (HP/UHP) and/or high/ultrahigh temperature (HT/UHT). The study focuses on:

  • the HP/UHP units exposed in the southern Dora-Maira massif, in the western Alps;
  • the central-eastern Karakorum terrane (HT metamorphism);
  • the Triassic orogenic belt of the Dabie Shan (HP/UHP and HT/UHT metamorphism);
  • the Paleoproterozoic North China Craton (HP/HT metamorphism).

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FIG 1. Coronitic and symplectitic microstructures in a granulitized eclogite from the North Dabie Complex in China (PPL)

Main collaborations

  • University of Science and Technology of China (USTC), School of Earth and Space Sciences, Hefei, China (Prof. Liu Yi-Can)
  • Wadia Institute of Himalayan Geology, Dehra Dun (India)  (Prof. Himanshu K. Sachan)



  • Chandra Singh P., Sachan H.K., Kharya A., Rolfo F., Groppo C., Singhal S., Tiwari S.K., Ranjan Rai S. (2020). Tectono-metamorphic evolution of the Karakoram Terrane: Constrained from P–T–t–fluid history of garnet-bearing amphibolites from Trans Himalaya, Ladakh, India, Journal of Asian Earth Sciences. 196, 10429
  • Li Y., Liu Y.C., Yang Y., Rolfo F., Groppo C. (2020): Petrogenesis and tectonic significance of Neoproterozoic meta-basites and meta-granitoids within the central Dabie UHP zone, China: Geochronological and geochemical constraints. Gondwana Research. 78, 1-19.
  • Groppo C., Ferrando S., Gilio M., Botta S., Nosenzo F., Balestro G., Festa A. Rolfo F. (2019). What’s in the sandwich? New P–T constraints for the (U)HP nappe stack of southern Dora-Maira Massif (Western Alps). European Journal of Mineralogy, 31,665-683.
  • Deng L.-P., Liu Y.-C., Gu X.-F., Groppo C., Rolfo F. (2018). Partial melting of ultrahigh-pressure metamorphic rocks at convergent continental margins: Evidences, melt compositions and physical effects. Geoscience Frontiers, 9, 1229-1242.
  • Liu Y.-., Zhang P.-G., Wang C.-C., Groppo C., Rolfo F., Yang Y., Li Y., Deng L.-P., Song B. (2017). Petrology, geochemistry and zirconology of impure calcite marbles from the Precambrian metamorphic basement at the southeastern margin of the North China Craton. Lithos, 290-291, 189-209.
Last update: 10/05/2021 12:22
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