2019
DOI: 10.1016/j.chemgeo.2018.05.043
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Multiphase inclusions in peritectic garnet from granulites of the Athabasca granulite terrane (Canada): Evidence of carbon recycling during Neoarchean crustal melting

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Cited by 30 publications
(24 citation statements)
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“…Although H 2 O as a free phase has never been demonstrated by Raman spectroscopy within the measured FI of the Gruf Complex, its occurrence at the nanometric scale cannot be excluded (see also Esposito et al., 2016; Lamadrid, Lamb, Santosh, & Bodnar, 2014). On the other hand, carbonates and phyllosilicates are interpreted as re‐speciation products after post‐entrapment carbonation and hydration reactions between garnet host and fluid, as it has been suggested also for other HT/UHT terranes (Carvalho et al., 2019, 2020; Ferrero et al., 2014; Tacchetto et al., 2019). Hence, the different densities displayed by the FI are a direct consequence of incomplete reactions, which leave a variable amount of CO 2 in the residual fluid.…”
Section: Discussionmentioning
confidence: 80%
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“…Although H 2 O as a free phase has never been demonstrated by Raman spectroscopy within the measured FI of the Gruf Complex, its occurrence at the nanometric scale cannot be excluded (see also Esposito et al., 2016; Lamadrid, Lamb, Santosh, & Bodnar, 2014). On the other hand, carbonates and phyllosilicates are interpreted as re‐speciation products after post‐entrapment carbonation and hydration reactions between garnet host and fluid, as it has been suggested also for other HT/UHT terranes (Carvalho et al., 2019, 2020; Ferrero et al., 2014; Tacchetto et al., 2019). Hence, the different densities displayed by the FI are a direct consequence of incomplete reactions, which leave a variable amount of CO 2 in the residual fluid.…”
Section: Discussionmentioning
confidence: 80%
“…At present, only few studies have approached a detailed investigation of primary melt and fluid inclusions (FI) at, or near, UHT conditions (e.g. in the Kerala Khondalite Belt, Cesare et al., 2009 and Ferrero et al., 2012, in the Athabasca granulite terrane, Tacchetto et al., 2019 or in the Ivrea − Verbano Zone, Carvalho et al., 2019) and therefore the pristine composition of both anatectic melts and fluids in UHT rocks is largely unconstrained. In order to overcome this paucity, we examined primary melt and FI in peritectic minerals observed in UHT granulites of the Gruf Complex (Central Alps).…”
Section: Introductionmentioning
confidence: 99%
“…A kiindulási fluidum (CO 2 ) a reakció során felhasználódik a bezáró ásvánnyal. Ezt a folyamatot több féle befogadó ásvány esetén (plagioklász, ortopiroxén és gránát), számos tanulmány bemutatja (KLEINEFELD & BAKKER 2002, BERKESI et al 2012, TACCHETTO et al 2019, CARVALHO et al 2020. Tömeg egyensúlyi számítások alapján ekkor, a zárványokban jellemző karbonát térfogatarány esetén (60-75%), egyenlő N 2 -CH 4 -tartalom mellett a CO 2 relatív mennyisége a többi fuidum komponenshez képest min.…”
Section: Figure 5 Three Raman Spectra Showing the Variability Of Volatile Composition In Type I Inclusionsunclassified
“…Ez utóbbi esetben a karbonátok és a bezáró ásvány domináns divalens kationja megegyezik (a vizsgált esetben ez a Mg 2+ ), amely mellett Sigazdag fázis is képződik (pl. SCAMBELLURI & PHILLIPOT 2001, TACCHETTO et al 2018. Ortopiroxén fluidumzár ványai esetében nem találtunk szilikátásványt, azonban fontos megemlíteni, hogy a reakció során felszabaduló szilikátos komponens néhány 100 nm-es amorf SiO 2 -gaz dag filmként is megjelenhet a zárvány belső falán (BERKESI et al 2012).…”
Section: Ortopiroxén Fluidumzárványaiunclassified