The age and origin of the South Mountain Batholith (Nova Scotia, Canada) as constrained by zircon U–Pb geochronology, geochemistry, and O–Hf isotopes

L Bickerton, DJ Kontak, JB Murphy… - Canadian Journal of …, 2022 - cdnsciencepub.com
The South Mountain Batholith (SMB; Nova Scotia, Canada) is the largest composite
batholith exposed in the Appalachians and lies entirely within the most outboard Meguma …

The provenance of Avalonia and its tectonic implications: a critical reappraisal

JB Murphy, RD Nance, L Wu - 2023 - pubs.geoscienceworld.org
Abstract The late Neoproterozoic–Cambrian interval is characterized by global-scale
orogenesis, rapid continental growth and profound changes in Earth systems. Orogenic …

100 myr cycles of oceanic lithosphere generation in peri-Gondwana: Neoproterozoic–Devonian ophiolites from the NW African–Iberian margin of Gondwana and the …

R Arenas, SS Martínez, R Albert, F Haissen… - 2021 - pubs.geoscienceworld.org
Abstract The Variscan Orogen in Iberia and the Anti-Atlas Mountains in Morocco contains a
set of ophiolites formed between Neoproterozoic and Devonian times, during the complex …

Defining shear zone deformation and alteration gradients: Pocologan Kennebecasis shear zone, Canadian Appalachians

N Piette-Lauzière, KP Larson, DA Kellett, R Kilian… - Tectonophysics, 2024 - Elsevier
The impact of fluid-rock interaction during deformation is difficult to characterize at the
regional scale because of the lack of continuous outcrops to provide textural evidence and …

Isotope geochemistry evidence for Laurussian-type sources of South Portuguese Zone Carboniferous turbidites (Variscan orogeny)

MF Pereira, C Gama, ÍD da Silva, JM Fuenlabrada… - 2021 - pubs.geoscienceworld.org
Abstract New Rb–Sr isotopic data from South Portuguese Zone (SPZ) turbidites show that
the 87 Sr/86 Sr (t) ratio increases from the basal Mértola Formation (Visean–Serpukhovian …

[HTML][HTML] Geological interpretation of wide-angle seismic reflection/refraction profiles along the Scotian margin and across Nova Scotia, Canada

HR Jackson, D Chian, T Funck, SM Barr, J Shimeld… - Tectonophysics, 2024 - Elsevier
Two wide-angle seismic reflection/refraction profiles were acquired to determine the velocity
characteristics of the Meguma terrane and adjacent Avalonia northeast of the Cobequid …

Late Devonian shear-zone reactivation in the Canadian Appalachian orogen

N Piette-Lauzière, KP Larson, DA Kellett, N Rogers… - 2024 - pubs.geoscienceworld.org
Oblique accretion zones often display transpressive, strike-slip and transtensive structures of
different orientations with respect to the convergence axis. The Late Devonian oblique …

Conjugate shear model for emplacement of mid-crustal plutons during dextral transpression, southern Nova Scotia, Canada: tectonic and petrological consequences

WJ Collins, JB Murphy - Canadian Journal of Earth Sciences, 2024 - cdnsciencepub.com
The South Mountain Batholith (SMB) is a syn-tectonic composite batholith emplaced in the
upper crust within the Meguma terrane between 380 and 370 Ma during the later stages of …

Garnet crystallization mechanisms and localized polymetamorphism in the southwestern Meguma Terrane, Nova Scotia, Canada

AB Nagurney, MJ Caddick… - Journal of Metamorphic …, 2022 - Wiley Online Library
We present data on the pressure and temperature (P–T) conditions experienced by
metamorphic rocks of the Meguma Terrane, Nova Scotia, Canada, also utilizing three …

Late Devonian syntaxis in the Northern Appalachian orogen

N Piette-Lauzière, KP Larson, DA Kellett, L Harris… - 2024 - pubs.geoscienceworld.org
The pre-accretionary shapes of cratonic margins form successions of promontories and re-
entrants inherited from the rifting of supercontinents. In accretionary orogens, the extent of …