Reevaluation of siderophile element abundances and ratios across the Cretaceous–Paleogene (K–Pg) boundary: Implications for the nature of the projectile

Goderis, Steven; Tagle, R.; Belza, Joke; Smit, Jan; Montanari, A.; Vanhaecke, Frank; Erzinger, J.; Claeys, Philippe

doi:10.1016/j.gca.2013.06.010

Cited by 79 publications

(111 citation statements)

References 113 publications

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“…This is fully in range of typical K-Pg boundary concentrations reported for other K-Pg sites in the NeoTethys region (e.g., Ir max of 16.62 ppb at Caravaca (Spain), 2.33 ppb at Furlo (Italy), or 1.93 ppb at Siliana (Tunusia); Goderis et al, 2013). In the second reddish layer, the Ir concentration remains stable at background values (0.77 ppb), while Cr, Ni, Ru, Pt, and Pd exhibit a slight increase (App.…”

Section: Siderophile Element Signalssupporting

confidence: 78%

“…The samples were prepared following the procedures described in Goderis et al (2013). All samples weighed between approximately 7 and 27 g, although sample masses of around 15 g were preferred to avoid nugget effects.…”

Section: Siderophile Element Determinationmentioning

confidence: 99%

“…The concentrations of Cr, Co, and Ni were determined by ICP-MS, after acid digestion of approximately 100 mg of sample at Ghent University (Goderis et al, 2013). Each solution was measured twice and the mean concentrations are given in Appendix B.1.…”

Section: Siderophile Element Determinationmentioning

confidence: 99%

“…The concentrations of the PGE and Au were determined via a nickel-sulfide (NiS) fire assay sample preparation technique combined with ICP-MS, following the procedure described in detail in Goderis et al (2013). The preferred use of large sample masses and external calibration versus a calibration curve ensures good analytical accuracy and reproducibility, relatively low limits of detection and quantification and simultaneous measurement of all PGE (except Os that volatilizes during the procedure applied).…”

Section: Siderophile Element Determinationmentioning

confidence: 99%

“…Next to the reference material TDB-1 (diabase) and WPR-1 (altered peridotite) from the CCRMP (certified and recommended; Govindaraju, 1994;Meisel and Moser, 2004), a spinelbearing serpentinite UB-N from the Vosges Mountains in France that is distributed by the CRPG-CNRS (Nancy, France) for major and trace element analysis but characterized for PGEs (Meisel and Moser, 2004) and a K-Pg boundary ejecta layer at Stevns Klint (SK10) containing 34.7 ± 1.2 ng/g Ir (1s uncertainty) determined by several international laboratories applying neutron activation analysis (NAA) were used for method validation. Calculated uncertinities and values determined for reference materials can be found in Goderis et al (2013).…”

Section: Siderophile Element Determinationmentioning

confidence: 99%

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Geochemical and palaeontological characterization of a new K-Pg Boundary locality from the Northern branch of the Neo-Tethys: Mudurnu – Göynük Basin, NW Turkey

Açıkalın¹,

Vellekoop

Ocakoğlu

et al. 2015

Cretaceous Research

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A Cretaceous-Paleogene (K-Pg) succession is studied in detail in the Mudurnu-Göynük basin in northwestern Turkey. To characterize the K-Pg transition in this basin, two stratigraphic sections were measured and sampled at high resolution: the Okçular and the Göynük North sections. These sections were analysed for siderophile trace elements, including Ir and other platinum group elements (PGE: Ru, Rh, Pd, Ir, Pt), bulk stable carbon isotopes, calcareous nannofossils, planktic foraminifera and organic-walled dinoflagellate cysts (dinocysts). In this basin, the upper Maastrichtian consists of monotonous grey mudstones, mostly intercalated with turbidites and the basal Danian is characterised by grey mudstones, that are overlain by a rhythmic alternation of limetones and mudstones. The K-Pg boundary is marked by a thin, reddish ejecta layer, characterized by an enrichment of PGE and an abrupt negative shift in bulk δ13C. This ejecta layer is followed by 15-17cm of thick darker, clayey mudstone, the so-called boundary clay. The upper Maastrichtian to lower Danian interval displays a succession of biostratigraphic events, such as the globally recognized spike of the dinocyst taxon Manumiella druggii in the Maastrichtian, followed by the extinction of Cretaceous planktic foraminifera at the K-Pg boundary, and a subsequent rapid succession of First Occurrences (FOs) of dinocysts, such as Senoniasphaera inornata, Membranilarnacia? tenella and Damassadinium californicum and planktic foraminifera, including Parvularugoglobigerina eugubina and Subbotina triloculinoides in the lower Danian. Overall the sedimentological and palaeontological data suggest that the studied sites in the Mudurnu-Göynük basin were deposited under normal marine conditions, likely in an outer neritic to upper bathyal environment. Our geochemical and biostratigraphic characterization of the K-Pg boundary transition in the Mudurnu-Göynük basin provides a new K-Pg boundary record in the Northern branch of the Neo-Tethys and allows a detailed comparison with K-Pg boundary sections worldwide

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Section: Siderophile Element Signalssupporting

confidence: 78%

Section: Siderophile Element Determinationmentioning

confidence: 99%

Section: Siderophile Element Determinationmentioning

confidence: 99%

Section: Siderophile Element Determinationmentioning

confidence: 99%

Section: Siderophile Element Determinationmentioning

confidence: 99%

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Geochemical and palaeontological characterization of a new K-Pg Boundary locality from the Northern branch of the Neo-Tethys: Mudurnu – Göynük Basin, NW Turkey

Açıkalın¹,

Vellekoop

Ocakoğlu

et al. 2015

Cretaceous Research

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Origin and Evolution of Birds

Ritchison

2023

Fascinating Life Sciences

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Australian Asteroid Ejecta/Fallout Units

Glikson

Pirajno

2018

Asteroids Impacts, Crustal Evolution and Related Mineral Systems With Special Reference to Australia

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The Anunnaki, a group of deities that appear in the mythological traditions of the ancient Sumerians, Akkadians, Assyrians, and Babylonians, some of whom apparently represented the stars, i.e., the zodiac, or "heavenly host" worshipped by the Canaanites and Hebrews. Creative Commons (https://www.flickr.com/photos/tortuga767/525162235/in/photolist-NpAri-qCtV4W-5YiNuT-7AdeWc-5YiPa6-ArwNvs-qs5Fjk-qawEF1-qavKvm-qawK6U-qawMu1-5YiNzH-bjqDs c-dX9jVD-9R4bpo-7UKhQP-c5Vys1-NpfYf-LwTdSc-NpfYd-fzHbv9-5Yo3eN-5Yo3sA-3dEmn y-5YiNMR-5Yo2LC-5YiNo2-5YiNQk-5Yo3a5-5YiNJM-5Yo36m-ecrYj1-n5ZZe-5Yo3xm-5Yi NsF-9Wbk1t-5YiP48-5YiPeV-8VVgsj-5YiNEH-7u9hGF-8fAreF-qaEJtx-c3jWJS-ANdC5v-7ud bsL-AWUNi1-qYiyFE-fU9Uwt-g3nwHA)x Preface

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Reevaluation of siderophile element abundances and ratios across the Cretaceous–Paleogene (K–Pg) boundary: Implications for the nature of the projectile

Cited by 79 publications

References 113 publications

Geochemical and palaeontological characterization of a new K-Pg Boundary locality from the Northern branch of the Neo-Tethys: Mudurnu – Göynük Basin, NW Turkey

Geochemical and palaeontological characterization of a new K-Pg Boundary locality from the Northern branch of the Neo-Tethys: Mudurnu – Göynük Basin, NW Turkey

Origin and Evolution of Birds

Australian Asteroid Ejecta/Fallout Units

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