U-Pb memory behavior in Chicxulub's peak ring — Applying U-Pb depth profiling to shocked zircon

Rasmussen, Cornelia; Stöckli, Daniel F.; Ross, C.; Pickersgill, A. E.; Gulick, S. P. S.; Schmieder, M.; Christeson, G. L.; Wittmann, A.; Kring, D. A.; Morgan, J. V.

doi:10.1016/j.chemgeo.2019.07.029

Cited by 17 publications

(16 citation statements)

References 86 publications

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“…Previous work dated the granitoids from the IODP Exp. 364 core (Schmieder et al, 2017;Xiao et al, 2017;Rasmussen et al, 2019;Timms et al, 2020;Zhao et al, 2020). However, these studies utilized smaller sample sizes than the study presented here.…”

Section: Northern Maya Block Chicxulub Impact Structurementioning

confidence: 83%

“…3) employing standard mineral separation techniques, including crushing and grinding, hydrodynamic, magnetic, and heavy liquid separation. Zircon crystals were handpicked using a binocular microscope onto double-sided adhesive tape mounted on 1-inch circular acrylic discs for depth-profile LA-ICP-MS zircon U-Pb and REE analysis following the analytical procedures outlined in Marsh and Stockli (2015) and Rasmussen et al (2019Rasmussen et al ( , 2020.…”

Section: Methodsmentioning

confidence: 99%

“…Here, our detailed study of the zircon U-Pb geochronology and trace element signatures of the Chicxulub peak ring builds on recent work on IODP-ICDP Expedition 364 samples (e.g., Schmieder et al, 2017;Rasmussen et al, 2019;de Graaff et al, 2019;Zhao et al, 2020;Timms et al, 2020).…”

Section: Introductionmentioning

confidence: 95%

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Evidence of Carboniferous arc magmatism preserved in the Chicxulub impact structure

et al. 2021

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Determining the nature and age of the 200-km-wide Chicxulub impact target rock is an essential step in advancing our understanding of the Maya Block basement. Few age constraints exist for the northern Maya Block crust, specifically the basement underlying the 66 Ma, 200 km-wide Chicxulub impact structure. The International Ocean Discovery Program-International Continental Scientific Drilling Program Expedition 364 core recovered a continuous section of basement rocks from the Chicxulub target rocks, which provides a unique opportunity to illuminate the pre-impact tectonic evolution of a terrane key to the development of the Gulf of Mexico. Sparse published ages for the Maya Block point to Mesoproterozoic, Ediacaran, Ordovician to Devonian crust are consistent with plate reconstruction models. In contrast, granitic basement recovered from the Chicxulub peak ring during Expedition 364 yielded new zircon U-Pb laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS) concordant dates clustering around 334 ± 2.3 Ma. Zircon rare earth element (REE) chemistry is consistent with the granitoids having formed in a continental arc setting. Inherited zircon grains fall into three groups: 400−435 Ma, 500−635 Ma, and 940−1400 Ma, which are consistent with the incorporation of Peri-Gondwanan, Pan-African, and Grenvillian crust, respectively. Carboniferous U-Pb ages, trace element compositions, and inherited zircon grains indicate a pre-collisional continental volcanic arc located along the Maya Block’s northern margin before NW Gondwana collided with Laurentia. The existence of a continental arc along NW Gondwana suggests southward-directed subduction of Rheic oceanic crust beneath the Maya Block and is similar to evidence for a continental arc along the northern margin of Gondwana that is documented in the Suwannee terrane, Florida, USA, and Coahuila Block of NE México.

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Section: Northern Maya Block Chicxulub Impact Structurementioning

confidence: 83%

Section: Methodsmentioning

confidence: 99%

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Evidence of Carboniferous arc magmatism preserved in the Chicxulub impact structure

et al. 2021

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“…Time‐resolved full‐length ablation traces (~30 s) or shorter traces of observed age domains were used to calculate U‐Pb dates, interpreted as “single”, “rim” or “interior” age domains (see Figure 4 for definition). Additionally, full‐length ablation traces were split into 2‐s increments following Rasmussen et al (2019). This increment method allows for an assessment of the intra‐grain Pb systematics, internal common Pb (Pb c ) correction and improved age accuracy using both upper and lower intercept values from 2‐s arrays in Tera‐Wasserburg diagrams (Odlum & Stockli, 2019).…”

Section: Methodsmentioning

confidence: 99%

“…Rhyolitic tephras were recovered from ODP Leg180 drill holes (Lackschewitz et al, 2003) and are also preserved on the D'Entrecasteaux Islands (Davies, 1973;Smith, 1973), yielding sanidine 40 Ar/ 39 Ar plateau ages between 1.13 ± 0.06 and 0.03 ± 0.01 Ma (2s; Catalano, 2012) [Colour figure can be viewed at wileyonlinelibrary.com] or shorter traces of observed age domains were used to calculate U-Pb dates, interpreted as "single", "rim" or "interior" age domains (see Figure 4 for definition). Additionally, full-length ablation traces were split into 2-s increments following Rasmussen et al (2019).…”

Section: Me Thodsmentioning

confidence: 99%

Dating of young (<1 Ma) tephras: Using U‐Pb (zircon) and (U‐Th[‐Sm])/He (zircon, apatite, magnetite) chronometers to unravel the eruption age of a tephra in the Woodlark Rift of Papua New Guinea

et al. 2020

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The dating of volcanic tephras forms a critical cornerstone of chronostratigraphy and is paramount for the resolution of the geological timescale. (U‐Th[‐Sm])/He dating is an emerging tool in Quaternary tephrochronology and ideally suited to date tephras <1 Ma. We present zircon, magnetite and apatite (U‐Th[‐Sm])/He combined with zircon U‐Pb data for a Pleistocene tephra in syn‐rift strata of the Woodlark Rift in Papua New Guinea. The results reveal a young He age mode (~0.5 to 0.8 Ma), consistent with an autocrystic zircon U‐Pb crystallisation age of 0.8 ± 0.1 Ma, as well as a broad range of older (U‐Th[‐Sm])/He (~1.6 to 10.2 Ma) and U‐Pb (~4.4 to 107 Ma) ages. These data demonstrate the potential of integrated U‐Pb and (U‐Th[‐Sm])/He multi‐method chronometry for dating the youngest coherent age mode, detecting contaminant grains and evaluating the isotopic systematics of these techniques.

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Decoupling of zircon U–Pb and trace-element systematics driven by U diffusion in eclogite-facies zircon (Monviso meta-ophiolite, W. Alps)

Garber

Smye

Feineman

et al. 2020

Contrib Mineral Petrol

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U-Pb memory behavior in Chicxulub's peak ring — Applying U-Pb depth profiling to shocked zircon

Abstract: There may be differences between this version and the published version. You are advised to consult the publisher's version if you wish to cite from it.

Cited by 17 publications

References 86 publications

Evidence of Carboniferous arc magmatism preserved in the Chicxulub impact structure

Evidence of Carboniferous arc magmatism preserved in the Chicxulub impact structure

Dating of young (<1 Ma) tephras: Using U‐Pb (zircon) and (U‐Th[‐Sm])/He (zircon, apatite, magnetite) chronometers to unravel the eruption age of a tephra in the Woodlark Rift of Papua New Guinea

Decoupling of zircon U–Pb and trace-element systematics driven by U diffusion in eclogite-facies zircon (Monviso meta-ophiolite, W. Alps)

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