Chiara Groppo
University of Turin
GeomorphologyGeologyGeochemistryMetamorphic rockPetrology
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Publications 97
#2Yang YangH-Index: 1
Last. Franco RolfoH-Index: 18
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Corundum-bearing anatectic aluminous rocks are exposed in the deeply subducted North Dabie complex zone (NDZ), of Central China. The rocks consist of corundum, biotite, K-feldspar and plagioclase, and show clear macro- and micro-structural evidence of anatexis by dehydration melting of muscovite in the absence of quartz. Mineral textures and chemical data integrated with phase equilibria modeling, indicate that coarse-grained corundum in leucosome domains is a peritectic phase, reflecting dehydr...
Abstract This study presents new data sets on the petrological, fluid inclusion and U-Pb zircon geochronological aspects of the garnet-bearing amphibolites from the eastern Karakorum (Pangong-Tso), Ladakh. to delineate the P-T-t-fluid evolution and its tectonic implications. The calculated phase equilibria in the model system NCKFMASHTO reveal that the peak metamorphism occurred at 8.5–9.5 kbar, 630–655°C, and retrograde metamorphism crossed a stage at 5.5–5.7 kbar, 620–630 °C. Monophase primary...
#1Yuan Li (USTC: University of Science and Technology of China)H-Index: 2
#2Yican Liu (USTC: University of Science and Technology of China)H-Index: 17
Last. Chiara Groppo (UNITO: University of Turin)H-Index: 21
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Abstract A combined geochemical (whole-rock elements and Sr-Nd-Pb isotopes, zircon trace elements and Hf isotopes) and geochronological (zircon U–Pb ages) study was carried out on the relatively low-grade meta-basites and meta-granitoids from Longjingguan within the central Dabie ultrahigh-pressure (UHP) metamorphic zone, east-central China. Zircon investigations indicate that the meta-basites were formed at ∼772 Ma and subsequently experienced granulite-facies metamorphism at ∼768 Ma and a late...
#1Simonpietro Di Pierro (UNITO: University of Turin)
#2Chiara Groppo (UNITO: University of Turin)H-Index: 21
Last. Marcello Mellini (UNISI: University of Siena)H-Index: 26
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#1Liang-Peng Deng (CUTe: China University of Technology)H-Index: 2
#2Yican Liu (USTC: University of Science and Technology of China)H-Index: 17
Last. Xiao-Feng Gu (USTC: University of Science and Technology of China)H-Index: 7
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1 CitationsSource
#1Chiara Groppo (UNITO: University of Turin)H-Index: 21
#2Franco Rolfo (UNITO: University of Turin)H-Index: 18
Last. Matthew A. Coble (Stanford University)H-Index: 10
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Abstract The Tibetan Plateau, largely derived from the accretion of several Gondwana microplates to the southern margin of Asia since the late Palaeozoic, is the highest and largest topographic relief on Earth. Although the first order geodynamic processes responsible for its pre-Cenozoic evolution are quite well-known, many issues are still debated, among which is the timing of collision of each terrane with the southern margin of Asia. Even more uncertain is the pre-Palaeozoic history of these...
#1Stefano GhignoneH-Index: 16
Last. Chiara GroppoH-Index: 21
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#1Frédéric Girault (IPGP: Institut de Physique du Globe de Paris)H-Index: 14
#2Lok Bijaya Adhikari (Kathmandu)H-Index: 6
Last. Frédéric Perrier (IPGP: Institut de Physique du Globe de Paris)H-Index: 24
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Fluid–earthquake interplay, as evidenced by aftershock distributions or earthquake-induced effects on near-surface aquifers, has suggested that earthquakes dynamically affect permeability of the Earth’s crust. The connection between the mid-crust and the surface was further supported by instances of carbon dioxide (CO2) emissions associated with seismic activity, so far only observed in magmatic context. Here we report spectacular non-volcanic CO2 emissions and hydrothermal disturbances at the f...
3 CitationsSource
#1Alberto Vitale Brovarone (University of Paris)H-Index: 10
#2Xu Chu (Yale University)H-Index: 6
Last. Carine Chaduteau (IPGP: Institut de Physique du Globe de Paris)H-Index: 9
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Abstract The interplay between the processes controlling the mobility of H 2 O and C-bearing species during subduction zone metamorphism exerts a critical control on plate tectonics and global volatile recycling. Here we present the first study on fresh, carbonate-bearing, lawsonite eclogite-facies metabasalts from Alpine Corsica, France, which reached the critical depths at which important devolatilization reactions occur in subducting slabs. The studied samples indicate that the evolution of o...
2 CitationsSource
#1Tetsumaru ItayaH-Index: 35
#2Hironobu Hyodo (Okayama University of Science)H-Index: 14
Last. Chiara Groppo (UNITO: University of Turin)H-Index: 21
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