Hello,
I'm surprised that Jochen didn't mention this,
but a classic example of a regional low-P high-T
metamorphic terrain are the variscan Pyrenees,
although it generally doesn't reach very HT
granulite facies (but may go till migmatites,
starting in the chlorite zone).
Cheers,
Pavel
---
>Hi Dave,
>
>I think the Kluane metamorphic assemblage in the
>northwestern NA cordillera (SW Yukon territory)
>would apply. It's an inverted regional contact
>aureole approximately 5 km thick, ranging from
>ms-chl schist to migmatitic cordierite gneisses.
>The rocks are very homogeneous in their
>composition, graphitic metapelites. They are
>also relatively easy to access.
>
>Mezger et al. (2001) - J Metamorph Geol 19:
>121-137 (PT stuff, microprobe data)
>
>Mezger et al. (2001) - Can J Earth Sci 38: 91-103 (Nd isotopes)
>
>Jochen
>
>
>On Wed, Nov 19, 2014 at 6:58 PM, David Kelsey
><<mailto:[log in to unmask]>[log in to unmask]>
>wrote:
>
>Hello geo-metamorphism community,
>
>
>
>Does anyone out there know of regional high
>thermal gradient ("Buchan"/HT-LP) terranes that
>are obliquely exposed, showing a greenschist (or
>less) to granulite facies progression? I'm
>ideally interested in such terranes that also
>contain metapelite traceable from low through to
>high grade.
>
>
>
>Thank you in advance for suggestions
>
>
>
>Cheers, Dave Kelsey
--
Pavel PITRA
Géosciences Rennes email: [log in to unmask]
Université Rennes 1 tel: (++33) 2.23.23.65.06
Campus de Beaulieu - Bat. 15 fax: (++33) 2.23.23.67.80
F - 35 042 RENNES CEDEX
FRANCE http://www.geosciences.univ-rennes1.fr/
http://www.geosciences.univ-rennes1.fr/spip.php?article67
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