Results 11 to 20 of about 275,631 (233)
Diachronous Paleozoic accretion of peri-Gondwanan terranes at the Laurentian margin
Geological Society, London, Special Publications, 2018 In the original Wilson cycle, the northern Appalachian–Caledonide orogen resulted from the collision of two continental masses separated by a single ocean.
J. Waldron, D. Schofield, J. Murphy
semanticscholar +3 more sources
Canadian Journal of Earth Sciences, 2000 The igneous protoliths of the Margaree orthogneiss intruded the peri-Gondwanan rocks of the Port-aux-Basques Complex, in the southwestern corner of the Hermitage Flexure, prior to regional deformation and metamorphism.
Greg R Dunning +2 more
core +2 more sources
Lithos, 2020 An ensemble of fifteen granodiorite/tonalite plutons and minor intrusions was generated during Cambro-Ordovician times (ca. 498–462 Ma) at the margin of Gondwana, which occupies a large portion of the Central Iberian Zone of the Iberian Massif (Spain and
A. Castro +4 more
semanticscholar +4 more sources
Exchanging Genes Within a City: Analysis of Pollen Flow Patterns in a Narrow Endemic Plant Species Threatened by Urbanisation. [PDF]
Ecol EvolAnthropogenic habitat fragmentation can severely disrupt gene flow in endemic plants that depend on species‐specific native pollinators with limited dispersal ability. Using paternity analysis across fragmented and continuous populations, we found that pollen flow was maintained in intact bushland but was completely absent between fragments separated ...
Delnevo N +5 more
europepmc +2 more sources
Early evolutionary history of the seed. [PDF]
Biol Rev Camb Philos SocABSTRACT The seed is an essential stage in the life history of gymnospermous and angiospermous plants, facilitating both their survival and dispersal. We reappraise knowledge of the evolutionary history of the gymnospermous seed, from its origin in the late Devonian through to the well‐known end‐Permian extinctions – an interval encompassing the ...
Bateman RM, Spencer ART, Hilton J.
europepmc +2 more sources
60 years of the Serbo-Macedonian Unit concept: From Cadomian towards alpine tectonic frameworks [PDF]
Geološki Anali Balkanskoga Poluostrva, 2020 The study represents a summary of the hitherto tectonic concepts revolving around a peri-Gondwanan fragment referred to as the Serbo- Macedonian Unit. The Serbo-Macedonian Unit as a gneiss-dominated basement segment is positioned in the proximity of the ...
Spahić Darko, Gaudenyi Tivadar
doaj +1 more source
Earth-Science Reviews[EN] We provide a thorough review of the literature on peraluminous magmatism of Late Neoproterozoic and Early Palaeozoic (mostly Late Cambrian-Middle Ordovician) age cropping out in many places around the world (SW South Africa, NE Patagonia, NW Argentina, Colombia, SE Mexico and Guatemala, the European Variscan Massifs and from Turkey to northern ...
M. García-Arias +5 more
semanticscholar +4 more sources
Геодинамика и тектонофизика, 2023 U-Th-Pb isotope dating of grains of detrital zircon from quartzites of the Suvanyak metamorphic complex, which forms the Suvanyak tectonic unit that forms the western part of the Uraltau uplift, located in the east of the West Ural megazone in the ...
B. G. Golionko +7 more
doaj +1 more source
Geologica Acta, 2022 Despite the so-called exotic nature of the South Portuguese Zone relatively to the other major domains of the Iberian Massif of peri-Gondwanan affinity, Devonian detrital rocks of the oldest strata in the Iberian Pyrite Belt have a remarkable resemblance
João Lains Amaral +3 more
doaj +1 more source
Geophysical Monograph Series, Page 435-447., 2021 Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Peter E. Marshall +2 more
wiley +1 more source