Search Results - "Valencia, Victor A"
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Neuroimaging education in psychiatric training
Published in Neuropsychopharmacology (New York, N.Y.) (01-11-2024)“…As the histories of psychiatry, neurology, and neuroimaging interweave through time, psychiatry has only recently started to recognize the need to embrace…”
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Late Sinistral Shearing along Gondwana’s Paleo‐Pacific Margin in the Ross Orogen, Antarctica: New Structure and Age Data from the O’Brien Peak Area
Published in The Journal of geology (01-05-2008)“…New isotopic data from O’Brien Peak, Antarctica, provide constraints on the timing of deformation within the Ross Orogen in the Queen Maud Mountains. U‐Pb…”
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U-Pb Ages and Hf Isotopes in Zircons from Parautochthonous Mesozoic Terranes in the Western Margin of Pangea: Implications for the Terrane Configurations in the Northern Andes
Published in The Journal of geology (01-09-2017)“…U-Pb laser ablation inductively coupled plasma mass spectrometry ages and Hf isotopes in zircons were used to constrain the nature of two geological units…”
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Geochemistry and geochronology of Permian plutonic rocks at the north‐western margin of Gondwana
Published in Geological journal (Chichester, England) (01-07-2023)“…The occurrence of Permian magmatic rocks in the Colombian Andes is restricted to a few localities. Previous works have focused mainly on explaining its…”
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New ages from the Shackleton Glacier area and their context in the regional tectonomagmatic evolution of the Ross orogen of Antarctica
Published in International geology review (02-09-2021)“…The Ross orogenic belt in Antarctica is one of several Neoproterozoic-early Palaeozoic orogens that crisscrossed Gondwana and are associated with Gondwana's…”
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Transition From Collisional to Subduction‐Related Regimes: An Example From Neogene Panama‐Nazca‐South America Interactions
Published in Tectonics (Washington, D.C.) (01-01-2018)“…A geological transect across the suture separating northwestern South America from the Panama Arc helps document the provenance and thermal history of both…”
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Increased megathrust shear force drives topographic uplift in the Colombian coastal forearc
Published in Tectonophysics (05-12-2021)“…The subsidence/uplift patterns of forearc basins are controlled by subduction dynamics and are strongly dependent on the nature of the margin (erosive vs…”
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Structure, chronology, kinematics, and geodynamics of tectonic extension in the greater Catalina metamorphic core complex, southeastern Arizona, USA
Published in Geosphere (Boulder, Colo.) (01-12-2022)“…Oligocene and early Miocene displacement on the Catalina-San Pedro detachment fault and its northern correlatives uncovered mylonitic fabrics that form the…”
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Middle Triassic to Jurassic convergence at the north-western margin of Gondwana: insights from the Central Cordillera of Colombia
Published in International geology review (02-01-2024)“…The northern Andes are crucial for understanding the processes associated with the break-up of Pangea and its impact on the evolution of the Pacific margin of…”
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New petrochronological evidence for magmatic activity at the Central American arc at ∼100-84 Ma
Published in International geology review (02-01-2024)“…New detrital zircon petrochronological data (~380 analysed grains), including U-Pb dating, trace element, and isotopic analyses from modern sediments and…”
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Significance of Provenance Ages from the Chiapas Massif Complex (Southeastern Mexico): Redefining the Paleozoic Basement of the Maya Block and Its Evolution in a Peri-Gondwanan Realm
Published in The Journal of geology (01-11-2008)“…Medium- to high-grade metasedimentary rocks are exposed as isolated domains in mostly metaigneous crystalline rocks of the Chiapas Massif Complex (CMC), which…”
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Late Cretaceous porphyry copper mineralization in Sonora, Mexico: Implications for the evolution of the Southwest North America porphyry copper province
Published in Mineralium deposita (01-10-2014)“…Two porphyry Cu-Mo prospects in northern Sonora, Mexico (Fortuna del Cobre and Los Humos) located within the southwestern North American porphyry province have…”
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Rates of sediment recycling beneath the Acapulco trench: Constraints from (U-Th)/He thermochronology
Published in Journal of Geophysical Research - Solid Earth (01-09-2004)“…The Sierra Madre del Sur mountain range is an uplifted forearc associated with the subduction of the Cocos plate along the Acapulco trench beneath mainland…”
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Multiple metamorphic events in the Palaeozoic Mérida Andes basement, Venezuela: insights from U-Pb geochronology and Hf-Nd isotope systematics
Published in International geology review (02-09-2019)“…The metamorphic basement of the Mérida Andes in western Venezuela is constituted of paragneiss, orthogneiss, amphibolite, and metagranitoid of the Iglesias…”
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The age and composition of the pre-Cenozoic basement of the Jalisco Block: implications for and relation to the Guerrero composite terrane
Published in Contributions to mineralogy and petrology (01-09-2013)“…The Jalisco Block is thought to be part of the Guerrero terrane, but the nature and age of the underlying crystalline basement are largely unknown. We have…”
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Correlation and Late-Stage Deformation of Liv Group Volcanics in the Ross-Delamerian Orogen, Antarctica, from New U-Pb Ages
Published in The Journal of geology (01-05-2018)“…We present new zircon U-Pb isotopic data for volcanic rocks from deformed metavolcanic-sedimentary successions of the widespread Ross Supergroup in the Queen…”
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GHR1 Zircon – A New Eocene Natural Reference Material for Microbeam U‐Pb Geochronology and Hf Isotopic Analysis of Zircon
Published in Geostandards and geoanalytical research (01-03-2019)“…We present multitechnique U‐Pb geochronology and Hf isotopic data from zircon separated from rapakivi biotite granite within the Eocene Golden Horn batholith…”
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U-PB geochronology and magnetostratigraphy of a north Patagonian syn-orogenic Miocene succession: Tectono-stratigraphic implications for the foreland system configuration
Published in Tectonophysics (05-09-2019)“…The syn-orogenic Miocene deposits of the Patagonian Foreland System were the focus of numerous works in the latest years, due to their central role in the…”
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Regional provenance from southwestern Colombia fore-arc and intra-arc basins: implications for Middle to Late Miocene orogeny in the Northern Andes
Published in Terra nova (Oxford, England) (01-10-2015)“…Andean orogenic processes controlled the spatial and temporal distribution of the magmatic and sedimentary record. This contribution integrates new U/Pb zircon…”
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