9 research outputs found
Sm-Nd isotopic characteristics in the northeastern Gander Zone, Newfoundland Appalachians.
Deep crustal and local rheological controls on siting and reactivation of fault and shear zones, northeastern Newfoundland.
Relationships between the Cobo Granite and the Bordeaux Diorite Complex, Guernsey
SIGLEAvailable from British Library Document Supply Centre- DSC:DX77330 / BLDSC - British Library Document Supply CentreGBUnited Kingdo
Terrane analysis along a Neoproterozoic active margin of Gondwana: insights from U–Pb zircon geochronology
<p>The tectonic affinities of terranes in accretionary orogens can be evaluated using geochronological techniques. U–Pb zircon
data obtained from paragneisses of the Coedana Complex (Anglesey) and the Malverns Complex, southern Britain, indicate that
they were deposited during the mid- to late Neoproterozoic and have a comparable Amazonian provenance. Metamorphism of the
Coedana gneisses occurred at 666 ± 7 Ma, similar to the age of metamorphism in the Malverns Complex. Anglesey therefore probably
evolved in proximity to the Avalonian basement of mainland southern Britain during the mid- to late Neoproterozoic and is
not a ‘suspect terrane’ relative to the remainder of Avalonia.
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