... marine facies on the Avalonian marginal platform. No clasts were found that are likely to have been derived from the Torbrook Formation, and thus from the Meguma terrane in southwestern Nova Scotia, as has been previously reported. The association of relatively large, reworked fossiliferous clasts...

... of the White Rock Formation yielded a U–Pb zircon age of Ma, identical within error to published ages for the Brenton Pluton and felsic volcanic rocks near the base of the White Rock Formation in the Torbrook area of western Nova Scotia. The chemical characteristics of the mafic volcanic rocks and associated...

...E. Bouyx; J. Blaise; D. Brice; J. M. Dégardin; D. Goujet; R. Gourvennec; J. Le Menn; H. Lardeux; P. Morzadec; F. Paris Abstract Studies of fossils collected from the Nictaux–Torbrook and Bear River synclines (Nova Scotia) allow a reexamination of the Siluro-Devonian stratigraphy of the Meguma...

... Supergroup in the Mahone Bay region of southern Nova Scotia. Variably reset detrital muscovite ages of 600-550 Ma agree with previously obtained U-Pb dates from detrital zircon. Separates of foliation-parallel muscovite yield precise 40 Ar/ 39 Ar ages of 395-388 Ma. Petrographic and metamorphic data indicate...

... thermochronology of detrital minerals. Reviews in Mineralogy and Geochemistry , 58 ( 1 ): 239 – 257 . 10.2138/rmg.2005.58.9 Jensen, L.R. 1975. The Torbrook Formation. In Ancient Sediments of Nova Scotia. Edited by I.M. Harris. Society of Economic Paleontologists and Mineralogists, Eastern Section...

...Chris E. White; Sandra M. Barr; Ulf Linnemann The White Rock Formation is the lowermost formation of the Rockville Notch Group, an assemblage of Silurian–Devonian rocks preserved in five areas along the northwestern margin of the Meguma terrane of Nova Scotia. The formation consists mainly of mafic...

... be further complicated when mixed siliciclastic–carbonate systems are present. The Roseway–Missisauga case study from Nova Scotia is used here to explore potential implications associated with the development of deep-water turbidites that are time equivalent to outer-shelf mixed siliciclastic–carbonate units...

...Fig. 1. Simplified context geological map of the Meguma terrane, Nova Scotia, after White et al. (2018) . Primary Meguma rock unit divisions are shown, along with a box indicating the Mavillette gabbro at Cape St. Marys ( Fig. 2 ), and other published paleomagnetic study localities ( Spariosu et...

..., Meguma Terrane [B.Sc.H. dissertation]: Wolfville, Nova Scotia , Canada , Acadia University , 111 p . Jensen L.R , 1975 , The Torbrook Formation , in Harris I.M. , ed., Ancient Sediments of Nova Scotia: Society of Economic Paleontologists and Mineralogists, Eastern Section Guidebook...

... Orogen (South), Canada – United States of America. Geological Survey of Canada, Map 02096A, scale 1 : 1 500 000. Jensen, L.R. 1975. The Torbrook Formation. In Ancient sediments of Nova Scotia. Edited by I.M. Harris. Society of Economic Paleontologists and Mineralogists, Eastern Section Guidebook...

... margin records a wide region of progressive extension and thinning in the seaward direction, typical of magma-poor rifted continental margins. This transition, from unstretched continental crust beneath Nova Scotia, across the thinned transitional crust underlying the Scotian Basin, to the oceanic crust...

... and the formation of Pangea in the Carboniferous–Permian (e.g., van Staal et al., 1998 ). The Meguma terrane is the farthest outboard terrane in the Northern Appalachians. It is exposed only in mainland Nova Scotia ( Fig. 1 ) and is separated from the Avalon terrane to the north by a fault zone (the Minas fault...

... if substantial amounts (e.g. ~ 33%) of crustal assimilation are required to explain the geochemical variability within the SMB. The Meguma Terrane of southwestern Nova Scotia is composed of the Cambro-Ordovician Meguma Supergroup, Siluro-Devonian White Rock and Torbrook formations and the Late Devonian...

...D. Fraser Keppie; J. Duncan Keppie; J. Brendan Murphy Abstract Many auriferous veins dated at ∼370 Ma in the Meguma terrane of Nova Scotia are concentrated in tight domes, and conical fold hinges that are transected by 378 Ma low-pressure and high-temperature metamorphic isograds and 380–370 Ma...

...) the post-Acadian uplift history of basement rocks, (3) the relationship between sediment supply and accommodation space, and (4) the subsequent motion along faults that dismembered the basin. The St. Marys Basin of mainland Nova Scotia consists almost entirely of Horton Group rocks and is strategically...

... Devonian (Lochkovian to Lower Emsian; Bouyx et al., 1997 ) Torbrook Formation (age range of 419–395 Ma using Devonian time scales of Tucker et al., 1998 ; Okulitch, 2002 ). Over 60 past-producing gold deposits occur throughout the exposed Meguma terrane in southern Nova Scotia and are invariably...

... formation at 450 °C from fluids with δ 18 O H2O = 7‰ and δ 34 S H2S = 2‰–3‰, which suggests an A- or I-type magmatic reservoir rather than a peraluminous magma. These data indicate the presence of a widespread magmatic event that is 20 Ma younger than the 380 Ma Sn-base metal event in southern Nova Scotia...

... by the 40 Ar/ 39 Ar Method . 2nd ed. Oxford University Press , New York . Muir C.M. 2000 . An 40 Ar/ 39 Ar study of the Goldenville, Halifax, White Rock, and Torbrook formations of the Digby area, southwest Nova Scotia . B. Sc. thesis, Dalhousie University , Halifax, N.S. Murphy J.B...