Table 1.

Worldwide examples of regional metamorphism for which high-precision geochronology produced a metamorphic duration estimate of less than 5 – 10 myr

LocationMetamorphic facies, facies seriesApproximate T (°C), P (GPa)Age range (Ma)Duration (myr), Duration used in Figure 1 (myr)Isotope systemReference
Kaghan Valley, Pakistan Himalaya*UHP, Franciscan725, 2.946 – 442 – 4, 3U–Pb rtTreloar et al. (2003)
Kaghan Valley, Pakistan Himalaya*UHP, Franciscan745, 2.7546.5 – 44.10.4 – 4.4, 2.4U–Pb aln, U–Pb zrnParrish et al. (2006)
Sifnos, Cyclades, Aegean Sea, GreeceEclogite, Franciscan560, 2.246.5 – 46.5<1.0, 1Sm–Nd grtDragovic et al. (2012)
Sifnos, Cyclades, Aegean Sea, GreeceEclogite, Franciscan520, 2.147.2 – 451.5 – 3, 2.2Sm–Nd grtDragovic et al. (2015)
Syros, Cyclades, Aegean Sea, GreeceEclogite, Franciscan500, 1.552.2 – 50<4.5, 2.2Lu–Hf grtLagos et al. (2007)
Syros, Cyclades, Aegean Sea, GreeceEclogite, Franciscan500, 2.253.1 – 51.22, 2Ar–Ar wmLister & Forster (2016)
D'Entrecasteaux Metamorphic Core Complex, D'Entrecasteaux Islands, SE Papua New GuineaEclogite, Franciscan900, 2.24.3 – 0<4, 1U–Pb zrnBaldwin et al. (2004)
Sesia Zone, W Alps, Italy*Eclogite, Franciscan580, 2.278.5 – 75.61.2 – 4.6, 2.9U–Pb aln, U–Pb zrnRubatto et al. (2011)
Sesia Zone, W Alps, Italy*Eclogite, Franciscan560, 2.069 – 65<10, 4U–Pb ttn, U–Pb zrnRubatto et al. (2011)
Yukon–Tanana Terrane, S Yukon, CanadaEclogite, Sanbagawan690, 1.5264 – 256<8, 4Lu–Hf grt, Ar–Ar wmPhilippot et al. (2001)
Sesia Zone, W Alps, Italy*Eclogite (overprint), Sanbagawan550, 1.276 – 69.84.4 – 8, 6.2U–Pb aln, U–Pb zrnRubatto et al. (2011)
Tauern Window, E Alps, Austria*Eclogite (overprint), Sanbagawan550, 1.132 – 284, 4U–Pb alnSmye et al. (2011)
Tauern Window, E Alps, AustriaEpidote amphibolite (overprint), Barrovian550, 0.927.5 – 207 – 8, 7.5Sm–Nd grtPollington & Baxter (2010)
Upper Schieferhülle, Tauern Window, E Alps, AustriaEpidote amphibolite (overprint), Barrovian475, 0.435.4 – 303.7 – 7.1, 5.4Rb-Sr grtChristensen et al. (1994)
Dora Maira Massif, W Alps, ItalyEpidote amphibolite (overprint), Barrovian570, 1.035.1 – 31.82 – 4.8, 3.4U–Pb ttnRubatto & Hermann (2001)
Franja Costera Unit, Cordillera de la Costa, Puerto Cabello, north–central VenezuelaEpidote amphibolite (overprint), Barrovian580, 1.033.5 – 32.50.5 – 2, 1U–Pb ttn, U–Pb zrnViete et al. (2015)
Steinental Area, Lepontine Alps, SwitzerlandEpidote amphibolite, Barrovian520, 0.6432 – 24.94 – 10, 7Rb–Sr grtVance & O'Nions (1992)
South Armenian Block, ArmeniaEpidote amphibolite, Barrovian575, 0.8160 – 1555, 5U–Pb zrn, Ar–Ar wmHässig et al. (2015)
Wepawaug Schist, Orange–Milford Belt, S Connecticut, USAEpidote amphibolite, Barrovian610, 0.9389 – 3806 – 12, 9Sm–Nd grtLancaster et al. (2008)
Pinney Hollow Formation, Townshend Dam, SE Vermont, USAEpidote amphibolite, Barrovian600, 0.95380.3 – 376.51.6 – 6, 3.8Sm–Nd grtGatewood et al. (2015)
Ottauque Formation, SE Vermont, USAEpidote amphibolite, Barrovian500, 0.5380 – 369.56.3 – 14.7, 10Rb–Sr grtChristensen et al. (1989)
Lesser Himalayan Formation, Central Himalaya, NepalEpidote amphibolite, Barrovian535, 0.723.3 – 0<3.3, 2U–Pb mnzCatlos et al. (2001)
Lesser Himalayan Formation, Central Himalaya, NepalEpidote amphibolite, Barrovian550, 0.76 – 0<6, 3Th–Pb mnzHarrison et al. (1997)
Fleur de Lys Supergroup, Newfoundland, CanadaEpidote amphibolite, Barrovian530, 0.61448.4 – 448.60.33 – 4.7, 2.5Rb–Sr grt, Sm–Nd grtVance & O'Nions (1990)
Skaiti Supergroup, Sulitjelma, N NorwayGreenschist, Barrovian460, 0.52434.1 – 424.67.1 – 11.9, 9.5Sm–Nd grtBurton & O'Nions (1991)
Blyb Metamorphic Complex, Great Caucasus, RussiaAmphibolite (overprint), Barrovian660, 0.8316 – 303<8, 4Lu–Hf grt, Ar–Ar wmPhilippot et al. (2001)
Lesser Himalayan Formation, Sikkim Himalaya, IndiaAmphibolite, Barrovian660, 0.920.8 – 15.64.8 – 5.6, 5.2U–Pb mnzMottram et al. (2014)
Lesser Himalayan Formation, Sikkim Himalaya, IndiaAmphibolite, Barrovian660, 0.921 – 165, 5U–Pb zrn, Ar–Ar wmMottram et al. (2015)
Barrovian Series, E ScotlandAmphibolite, Barrovian690, 0.6473 – 4658, 8U–Pb zrnViete et al. (2013)
Barrovian Series, E ScotlandAmphibolite, Barrovian660, 0.6473 – 4653 – 13, 8Sm–Nd grtBaxter et al. (2002)
Barrovian Series, E ScotlandAmphibolite, Barrovian650, 0.75472 – 4653 – 11, 7Sm–Nd grtOliver et al. (2000)
Barrovian Series, E ScotlandAmphibolite, Barrovian750, 1.0472 – 468<13, 8U–Pb zrnVorhies et al. (2013)
E Chugach Metamorphic Complex, S Alaska, USA*Amphibolite, Barrovian660, 0.952 – 502, 2U–Pb zrnGasser et al. (2012)
W Chugach Metamorphic Complex, S Alaska, USA*Amphibolite, Barrovian670, 0.855 – 523, 3U–Pb zrnGasser et al. (2012)
Salinian Terrane, CaliforniaAmphibolite, Barrovian750, 0.878.2 – 77.9<6, 3Sm–Nd grtDucea et al. (2003)
Shuswup Metamorphic Core Complex, Thor–Odin Dome, British Columbia, Canada*Amphibolite, Barrovian700, 0.6559.8 – 55.9<8, 4U–Pb zrnVanderhaeghe et al. (1999)
Wenatchee Block, Cascades Crystalline Core, Washington, USAAmphibolite, Barrovian650, 0.792 – 86<6, 6Sm–Nd grtStowell et al. (2011)
Niğde Massif, Central Anatolian Crystalline Complex, Central TurkeyAmphibolite, Barrovian725, 0.692 – 853.5 – 9, 6U–Pb mnz, U–Pb zrnWhitney et al. (2003)
Higher Himalayan Crystalline Series, Sikkim, IndiaGranulite, Barrovian800, 0.8531 – 274, 4U–Pb mnz, U–Pb zrnRubatto et al. (2013)
Higher Himalayan Crystalline Series, Sikkim, IndiaGranulite, Barrovian800, 0.8526 – 233, 3U–Pb mnz, U–Pb zrnRubatto et al. (2013)
Valhalla Complex, British Columbia, CanadaGranulite, Barrovian820, 0.867.3 – 60.92 – 10.8, 6.4Sm–Nd grtDucea et al. (2003)
Naxos, Cyclades, Aegean Sea, GreeceGranulite, Buchan675, 0.320.7 – 16.83.9, 3.9U–Pb zrnKeay et al. (2001)

Information is provided on location, metamorphic facies and facies series, approximate metamorphic PT conditions, age, geochronometer used and reference. Mineral abbreviations after Kretz (1983); wm, white mica; UHP, ultrahigh-pressure.

*Regional studies that report short-duration regional metamorphism on the basis of comparison of ages obtained from multiple rocks collected from structurally distinct lithotectonic units and/or units separated by significant along-strike distances.