U–Pb detrital zircon data of the Rio Fuerte Formation (NW Mexico): Its peri-Gondwanan provenance and exotic nature in relation to southwestern North America

Vega-Granillo, Ricardo; Salgado-Souto, Sergio Adrián; Herrera-Urbina, Saúl; Valencia, Víctor A.; Ruíz, Joaquin; Meza-Figueroa, Diana; Talavera-Mendoza, Óscar

doi:10.1016/j.jsames.2008.08.011

Cited by 31 publications

(12 citation statements)

References 43 publications

(71 reference statements)

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“…As shown in Figures 9 and 10, there are notable contributions of a Permian-Triassic detrital zircon age population in all of the samples, corresponding with the eastern Mexico Permian-Triassic magmatic arc, which yields K-Ar ages from 284 to 232 Ma Dickinson and Lawton, 2001). Other Paleozoic ages (467-420 Ma) probably correspond to Ordovician-Silurian magmatic rocks described in peri-Gondwanan terranes of Mexico, like the Acatlán Complex (Miller et al, 2007) or detrital zircon age populations present in the Granjeno Schist in northeastern Mexico or the El Fuerte Formation in Sinaloa (Vega-Granillo et al, 2008). There are other populations present that correspond to the Pan-African (700-500 Ma) and Grenvillian (1300-900 Ma) events, as well as subordinate Paleoproterozoic-Archean zircon age populations.…”

Section: Analytical Resultsmentioning

confidence: 76%

Late Triassic stratigraphy and facies from northeastern Mexico: Tectonic setting and provenance

et al. 2010

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Triassic strata in northeastern Mexico distributed over an area of ~120,000 km 2 have received relatively little attention in paleogeographic and tectonic reconstructions of western equatorial Pangea. Triassic marine sequences of the Zacatecas Formation in western San Luis Potosí and Zacatecas constitute facies corresponding to different sections of a submarine fan system previously described as the Potosí fan and were deposited on the paleo-Pacifi c margin of Pangea. New geochronologic data and fi eld observations permit revision of the stratigraphy from Late Triassic to Early Jurassic fl uvial deposits of the Huizachal Group that crop out in Nuevo León and Tamaulipas and indicate a link between the lower part of this succession (Triassic strata) and the Potosí fan. This work proposes and defi nes the El Alamar formation, which represents the only Triassic strata of the Huizachal Group (lower part of the Late Triassic-Early Jurassic La Boca Formation), and is interpreted as a continental succession that records a major fl uvial system draining equatorial Pangea and fl owing west into the Potosí fan. Petrographic and geochemical studies indicate that both Triassic successions, the Zacatecas Formation (marine) and El Alamar formation (continental) have continental block and recycled orogenic provenances. U-Pb detrital zircon geochronology by laser ablationmulticollector -inductively coupled plasmamass spectrometry show three main zircon age populations: (1) Grenvillian (1300-900 Ma); (2) Pan-African (700-500 Ma); and (3) dominant Permian-Triassic (280-240 Ma). The presence of these zircons displays evidence of sources in GrenvillianOaxaquia block, Pan-African terrains such as Yucatan and southeastern Texas, and a prominent contribution from the PermianTriassic east Mexico magmatic arc. Notable is the absence of detrital contributions from the southwestern North American craton. The geochronological data thus argue against proposed southeastward displacement of Triassic successions and their basement to their current position as proposed by the Mojave-Sonora megashear hypothesis. We propose that continental Triassic strata were deposited in eastern Mexico before the opening of the Gulf of Mexico basin, and are thus autochthonous and transported detritus toward the ancient Pacifi c margin into the Potosí fan, which is also autochthonous.

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Section: Analytical Resultsmentioning

confidence: 76%

Late Triassic stratigraphy and facies from northeastern Mexico: Tectonic setting and provenance

et al. 2010

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“…McFall (1968) reported an early Miocene age (ca. These basement rocks could be correlated with the Paleozoic to Late Jurassic basement of the El Fuerte Group, found in northern Sinaloa (Mullan, 1978;Keppie et al, 2006;Vega-Granillo et al, 2008. South of Bahía Concepción, intrusive rocks are mainly exposed at Santa Catalina and Santa Cruz islands (Figs.…”

Section: Notementioning

confidence: 70%

Timing of rifting in the southern Gulf of California and its conjugate margins: Insights from the plutonic record

Duque-Trujillo

Ferrari

Orozco-Esquivel

et al. 2014

Geological Society of America Bulletin

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The Gulf of California is a young example of crustal stretching and transtensional shearing leading to the birth of a new oceanic basin at a formerly convergent margin. Previous studies focused along the southwestern rifted margin in Baja California indicated rifting was initiated after subduction and related magmatism ceased at ca. 14-12.5 Ma. However, the geologic record on the Mexico mainland (Sinaloa and Nayarit States) indicates crustal stretching in the region began as early as late Oligocene. The timing of cooling and exhumation of pre-and synrift plutonic rocks can provide constraints on the timing and rate of rifting. Here, we present results of a regional study on intrusive rocks in the southern Gulf of California sampled along the conjugate Baja California and Nayarit-Sinaloa rift margins, as well as plutonic rocks now exposed on submerged rifted blocks inside the gulf. Forty-one samples were dated via U/Pb zircon and 40 Ar/ 39 Ar mineral ages, providing emplacement age and thermochronological constraints on timing and rate of cooling. We found an extensive suite of early and middle Miocene plutons emplaced at shallow depths within the basement Cretaceous-Paleocene Peninsular Range and Sinaloa-Jalisco Batholiths. Early Miocene granitoids occur in an elongated WNW-ESE belt crossing the entire southern gulf from southern Baja California to Nayarit and Sinaloa. Most have an intermediate composition (<67 SiO 2 wt%), but a distinctive group of high-silica granites (>75 SiO 2 wt%) was emplaced 20.1-18.3 Ma, near the end of the early Miocene. Age span and chemical composition of the early Miocene silicic plutons essentially overlap ignimbrites and domes exposed in the southern Sierra Madre Occidental and in southern Baja Cali fornia, suggesting that eruptive sources for the early Miocene ignimbrite fl are-up may also have been located within the southern Gulf of California. Early Miocene plutons cooled below the 40 Ar-39 Ar biotite closure temperature (350-400 °C) in less than 2.5 m.y., which we interpret as evidence of a regional extensional event leading to the opening of the Gulf of California. A less widely distributed suite of intermediate-composition, middle Miocene granitoids (15-13 Ma) was sampled from the central-western part of the gulf, west of the Pescadero Basin, and these correspond to an episode of scarce volcanism recorded by the middle and upper members of the onshore Comondú Group in Baja California. Our widely spaced sampling of the generally sediment-covered igneous crust suggests that middle Miocene primary volcanic rocks are much less abundant than implied by previous models in which the gulf was the site of a robust Comondú arc. Thermobarometry data also indicate a very shallow depth (<5 km) of emplacement for the middle Miocene plutonic rocks. Some of these rocks also show a distinctive inequigranular texture indicative of at least two crystallization stages at different pressure. Early and middle Miocene granitoids away from the gulf axis yielded 40 Ar-39 Ar cooling ages very close to...

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“…The Yucatan-Maya terrane includes PermoPennsylvanian strata with detrital-zircon ages that include a population of < 650-500 Ma (Weber et al 2006(Weber et al , 2008Martens et al 2010). The El Fuerte region of northwestern Mexico (southwest of the study area) is thought to represent, in part, the orogen-interior region of the OuachitaMarathon-Sonora orogenic belt and has age clusters of 453-508, 547-579, and 726-606 Ma (Vega-Granillo et al 2008). Interpretations vary for the exact placements and relative positions of these peri-Gondwanan Mexican terranes (e.g., Dickinson and Lawton 2001;Murphy et al 2004;Keppie et al 2008;Vega-Granillo et al 2008;Martens et al 2010); however, all were ultimately involved in the Pangean orogenic zone and subsequent uplift, and were thus capable of supplying zircons toward and into the Ouachita-Marathon system.…”

Section: Neoproterozoic-early Paleozoic (515-790 Ma)mentioning

confidence: 99%

“…The El Fuerte region of northwestern Mexico (southwest of the study area) is thought to represent, in part, the orogen-interior region of the OuachitaMarathon-Sonora orogenic belt and has age clusters of 453-508, 547-579, and 726-606 Ma (Vega-Granillo et al 2008). Interpretations vary for the exact placements and relative positions of these peri-Gondwanan Mexican terranes (e.g., Dickinson and Lawton 2001;Murphy et al 2004;Keppie et al 2008;Vega-Granillo et al 2008;Martens et al 2010); however, all were ultimately involved in the Pangean orogenic zone and subsequent uplift, and were thus capable of supplying zircons toward and into the Ouachita-Marathon system. Sharrah (2006) documented Neoproterozoic zircons in lower Pennsylvanian deepwater strata of the Ouachita foreland (Arkoma Basin) and combined these data with paleocurrent results to suggest a Yucatan (Maya block) source for these grains.…”

Section: Neoproterozoic-early Paleozoic (515-790 Ma)mentioning

confidence: 99%

Tracing Clastic Delivery To the Permian Delaware Basin, U.S.A.: Implications For Paleogeography and Circulation In Westernmost Equatorial Pangea

Soreghan¹,

Soreghan²

2013

Journal of Sedimentary Research

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The Guadalupe Mountains of the southwestern U.S. (New Mexico-West Texas) expose the shelf edge of the Permian Delaware Basin, which formed near the western edge of the Central Pangean suture in equatorial Pangea. Voluminous siliciclastic strata filled this basin in mid-Permian time, and compose the Delaware Mountain Group (Brushy Canyon, Cherry Canyon, and Bell Canyon formations). These units have long been recognized to record ultimate deepwater deposition of siliciclastic sediments that were pre-sorted via eolian transport as they progressed toward the shelf edge of the Delaware Basin in Permian time. The generally arkosic mineralogy led most previous researchers to identify crystalline basement uplifts of the Ancestral Rocky Mountains (ARM) of the western U.S. as the primary source for the large volumes of Permian siliciclastic material that fill this basin. New provenance data combining modal mineralogy with detrital-zircon geochronology, however, refute this interpretation. Rather than an ARM basement source, indicated by Paleoproterozoic ages, the predominant age populations, comprising 70-80% of the grains, reflect contributions from Paleozoic, Neoproterozoic, and Mesoproterozoic (Grenvillian) age basement. The combined (arkosic-subarkosic) mineralogy and provenance spectra of the siliciclastic strata from the Delaware Mountain Group, together with comparisons with coeval strata and available paleocurrent data indicate sources in the Ouachita system, including recycled Appalachian detritus, and terranes accreted and uplifted south of the Ouachita suture, now in Mexico and Central America. Dispersal pathways likely involved a component of fluvial transport draining the piedmont region of the Ouachita orogenic belt, and ultimate eolian deflation of these fluvial systems within an easterly to southeasterly and seasonal westerly to northwesterly atmospheric circulation. Monsoonal transport, especially northern excursions of the ITCZ during northern hemisphere summers, would have facilitated transport from terranes south of the Ouachita-Marathon suture in present-day Mexico and Central America. Source locations predominantly south-southeast of the study region potentially obviate the need to call upon transcontinental fluvial transport directly from the Appalachian orogen to the southwestern edge of Pangea, at least for this time period. Furthermore, these results place new constrains on the final docking, major uplift, and consequent erosion of the Yucatan-Maya terrane south of the Ouachita orogenic belt, which provided significant siliciclastic detritus to depocenters in the western U.S. during middle Permian time. In contrast, the uplifts of the ARM were either covered, or greatly diminished as sources by this time.

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U–Pb detrital zircon data of the Rio Fuerte Formation (NW Mexico): Its peri-Gondwanan provenance and exotic nature in relation to southwestern North America

Cited by 31 publications

References 43 publications

Late Triassic stratigraphy and facies from northeastern Mexico: Tectonic setting and provenance

Late Triassic stratigraphy and facies from northeastern Mexico: Tectonic setting and provenance

Timing of rifting in the southern Gulf of California and its conjugate margins: Insights from the plutonic record

Tracing Clastic Delivery To the Permian Delaware Basin, U.S.A.: Implications For Paleogeography and Circulation In Westernmost Equatorial Pangea

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