Permian to Triassic I to S-type magmatic switch in the northeast Sierra Nevada de Santa Marta and adjacent regions, Colombian Caribbean: Tectonic setting and implications within Pangea paleogeography

Cardona, A.; Valencia, Víctor A.; Garzón, A.; Montes, Camilo; Ojeda, Germán; Ruíz, Joaquin; Weber, Marion

doi:10.1016/j.jsames.2009.12.005

Cited by 79 publications

(113 citation statements)

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“…1) may be related either to terrane accretion or increased plate coupling in a magmatic arc setting (e.g. Vinasco et al, 2006;Cardona et al, 2010). This period of compression was followed by Early to Middle Triassic extension recorded in the Central Cordillera of Colombia and in Ecuador by the formation of sedimentary basins and the coeval intrusion of T-MORB amphibolites (e.g.…”

Section: Accepted Manuscriptmentioning

confidence: 99%

“…Carboniferous to Permian sedimentary successions in the Mérida Andes have been interpreted to form part of a foreland basin (Laya and Tucker, 2012), which may have formed during the final stages of the Alleghanian Orogeny, culminating with the amalgamation of Pangaea by the Early Permian (Hatcher, 2002). Cardona et al (2010) suggest that the Permian magmatic rocks in the Sierra Nevada de Santa Marta ( Fig. 1) were emplaced in a magmatic arc.…”

Section: Permianmentioning

confidence: 99%

“…16e; Cardona et al, 2010), and perhaps in the El Baúl Massif at ~294 Ma (Viscarret et al, 2009). Minor arc magmatism is recorded between ~250 and 225 Ma in Toas Island, the Perijá Andes (Fig.…”

Section: Tectonic Modelmentioning

confidence: 99%

“…Fields for data from Permian to Triassic (orange outlines) and Jurassic (blue outlines) granitoids from Colombia and Ecuador are compiled from Litherland et al (1994), Vinasco et al (2006) and Cardona et al (2010Cardona et al ( , 2014.…”

Section: Figure Captionsmentioning

confidence: 99%

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Palaeozoic to Early Jurassic history of the northwestern corner of Gondwana, and implications for the evolution of the Iapetus, Rheic and Pacific Oceans

et al. 2016

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The Palaeozoic to Mesozoic igneous and metamorphic basement rocks exposed in the Mérida Andes of Venezuela and the Santander Massif of Colombia are generally considered to define allochthonous terranes that accreted to the margin of Gondwana during the Ordovician and the Carboniferous. However, terrane sutures have not been identified and there are no published isotopic data that support the existence of separate crustal domains. A general paucity of geochronological data led to published tectonic reconstructions for the evolution of the north- western corner of Gondwana that do not account for the magmatic and metamorphic histories of the basement rocks of the Mérida Andes and the Santander Massif. We present new zircon U–Pb (ICP-MS) data from 52 igneous and metamorphic rocks, which we combine with whole rock geochemical and Pb isotopic data to constrain the tectonic history of the Precambrian to Mesozoic basement of the Mérida Andes and the Santander Massif. These data show that the basement rocks of these massifs are autochthonous to Gondwana and share a similar tectono- magmatic history with the Gondwanan margin of Peru, Chile and Argentina, which evolved during the subduc- tion of oceanic lithosphere of the Iapetus Ocean. The oldest Palaeozoic arc magmatism is recorded at ~500 Ma, and was followed shortly by Barrovian metamorphism. Peak metamorphic conditions at upper amphibolite facies are recorded by anatexis at ~477 Ma and the intrusion of synkinematic granitoids until ~472 Ma. Subsequent retrogression resulted from localised back-arc or intra-arc extension at ~453 Ma, when volcanic tuffs and interfingered sedimentary rocks were deposited over the amphibolite facies basement. Continental arc magmatism dwindled after ~430 Ma and terminated at ~415 Ma, coevally with most of the western margin of Gondwana. After Pangaea amalgamation in the Late Carboniferous to Early Permian, a magmatic arc developed on its western margin at ~ 294 Ma as a result of subduction of oceanic crust of the palaeo-Pacific ocean. Intermittent arc magmatism recorded between ~ 294 and ~ 225 Ma was followed by the onset of the Andean subduction cycle at ~ 213 Ma, in an extensional regime. Extension was accompanied by slab roll-back which led to the migration of the arc axis into the Central Cordillera of Colombia in the Early Jurassic

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Section: Accepted Manuscriptmentioning

confidence: 99%

Section: Permianmentioning

confidence: 99%

Section: Tectonic Modelmentioning

confidence: 99%

Section: Figure Captionsmentioning

confidence: 99%

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Palaeozoic to Early Jurassic history of the northwestern corner of Gondwana, and implications for the evolution of the Iapetus, Rheic and Pacific Oceans

et al. 2016

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“…Se propone una conexión entre el arco magmático permo-triásico del SW de EUA (e.g., Damon et al, 1981;Barth et al, 1997;Barth y Wooden, 2006) y NW de Sonora (Arvizu et al, 2009a) con el arco triásico del Este de México (Torres et al, 1999) Weber et al, 2005Weber et al, , 2007Kirsch et al, 2012;OrtegaObregón et al, 2013) enlazando este evento magmático a nivel cordillerano hasta el noroeste de Sudamérica (e.g., Vinasco et al, 2006;Cardona et al, 2010;Spikings et al, 2015). Al igual que otros autores, esto nos lleva a la conclusión de que este cinturón magmático es el resultado de la subducción permo-triásica a lo largo de un margen continental activo establecido después del ensamble final o sutura de Pangea durante la orogenia Ouachita-MarathonSonora en el Carbonífero tardío-Pérmico temprano (e.g., Ross, 1986;Torres et al, 1999;Dickinson y Lawton, 2001;Poole et al, 2005) formada por el cierre diacrónico de una cuenca oceánica (i.e., océano Rhéico) entre Laurencia y Gondwana, permitiendo su posterior colisión (Graham et al, 1975;Ross, 1979;Viele y Thomas, 1989;Hatcher, 2002).…”

Section: (Figura 18)unclassified

Control temporal y geología del magmatismo Permo-Triásico en Sierra Los Tanques, NW Sonora, México: Evidencia del inicio del arco magmático cordillerano en el SW de Laurencia

Arvizu

Iriondo

2015

BSGM

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Evidencia del inicio del arco magmático cordillerano en el SW de Laurencia 545 ResumenSierra Los Tanques se localiza en el NW del Estado de Sonora, México y representa uno de los principales afloramientos de rocas graníticas permo-triásicas reportados en esa región. Geocronología U-Pb en zircón realizada en dos grupos de granitoides, los cuales afloran en el área de estudio y en diversas localidades del NW de Sonora, proporcionan un rango de edades entre 284 -221 Ma. Las variedades litológicas predominantes son las granodioritas, seguido por las cuarzomonzodioritas y monzogranitos. Se pueden diferenciar dos suites principales: granitoides melanocráticos y leucocráticos. La relación de campo existente entre los dos tipos es que los melanocráticos son más antiguos ya que son intrusionados por los leucocráticos. Esta característica es corroborada, en la mayoría de los casos, por las edades U-Pb en zircón obtenidas de las muestras de ambas suites.La mayoría de los zircones de los granitoides permo-triásicos indican altas concentraciones de U (~ 47 -9508 ppm), pudiéndose así explicar las pérdidas de Pb apreciadas en muchos de los zircones analizados. Los zircones permo-triásicos muestran relaciones Th/U altamente variables (0.01 -0.73). La morfología prismática típica, además de las zonaciones oscilatorias de crecimientos magmáticos observadas en las imágenes de catodoluminiscencia, sugieren un carácter ígneo para estos zircones. La presencia de edades proterozoicas, que corresponden a núcleos heredados como se muestra en las imágenes de catodoluminiscencia, se asocia al basamento meta-ígneo de ~ 1.7 -1.6 Ga, ~ 1.4 Ga y ~ 1.1 Ga presente en la región, confirmado por las edades proterozoicas obtenidas de rocas de basamento para la zona de estudio.Estos granitoides permo-triásicos asociados a subducción representan evidencia del inicio del magmatismo cordillerano en el SW de Laurencia instaurado a lo largo del borde oeste de Pangea, inmediatamente después de culminar la colisión entre Gondwana y Laurencia. Este magmatismo es importante para entender la evolución tectónica del NW de México, ya que regionalmente su ocurrencia se asocia tentativamente a una zona de debilidad cortical relacionada al basamento paleoproterozoico del Yavapai mexicano en el NW de Sonora. El entendimiento de este pulso magmático también es de particular importancia ya que representa una fuente regional de zircones detríticos permo-triásicos no reconocida anteriormente para cuencas sedimentarias mesozoicas y cenozoicas en Sonora y sur de Arizona.Este pulso magmático, relacionado a los estadios iniciales de la subducción que propició el establecimiento de un arco magmático continental en el SW de Norteamérica, es parte de un gran evento a nivel cordillerano que se extiende desde el oeste-suroeste de Estados Unidos pasando por Sonora, Chihuahua y Coahuila a través del centro y sur de México y hasta el norte de Sudamérica.Palabras clave: Sierra Los Tanques, permo-triásico, arco magmático continental, subducción, Laurencia. Abstract Sierra Los Tan...

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The use of OBIA and petrography in the study of stone masonry: The case of La Palma, Sierra Nevada de Santa Marta

Rodríguez Osorio,

Weber Scharff,

Izurieta

et al. 2023

Geoarchaeology

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In this case study, rubble masonry walls from the Sierra Nevada de Santa Marta in Northern Colombia were investigated. We applied a combined object‐based image analysis (OBIA), photogrammetry, and petrography method to characterize and determine the provenance of the materials used in three targeted terraces of the archaeological site of La Palma. In situ data acquisition included detailed photographic records and petrographic descriptions of a selected section of masonry walls, as well as mapping of local geological units. Photographs were processed using OBIA. The data obtained allowed characterization and systematization of the constructive elements, via parameters that include architectural function within the construction (headers, stretchers, and wedges), roundness, and lithotype. This methodology enabled us to identify the source of the lithotypes from local rock outcrops (metagranodiorite and schist) as well as rock boulders and cobbles from the nearby riverbeds. The results suggest that pre‐Hispanic communities had knowledge of the properties of the geological resources available in the region, which they used to build masonry that has endured more than five centuries. Vertical differences identified in segments of different terrace walls suggest changes in the constructive process and therefore may serve to determine a construction chronology.

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Permian to Triassic I to S-type magmatic switch in the northeast Sierra Nevada de Santa Marta and adjacent regions, Colombian Caribbean: Tectonic setting and implications within Pangea paleogeography

Cited by 79 publications

References 50 publications

Palaeozoic to Early Jurassic history of the northwestern corner of Gondwana, and implications for the evolution of the Iapetus, Rheic and Pacific Oceans

Palaeozoic to Early Jurassic history of the northwestern corner of Gondwana, and implications for the evolution of the Iapetus, Rheic and Pacific Oceans

Control temporal y geología del magmatismo Permo-Triásico en Sierra Los Tanques, NW Sonora, México: Evidencia del inicio del arco magmático cordillerano en el SW de Laurencia

The use of OBIA and petrography in the study of stone masonry: The case of La Palma, Sierra Nevada de Santa Marta

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