Carbon isotope geochemistry of the Frasnian–Famennian transition

Joachimski, Michael M.; Pancost, Richard D.; Freeman, Katherine H.; Ostertag-Henning, Christian; Buggisch, Werner

doi:10.1016/s0031-0182(01)00474-6

Cited by 180 publications

(103 citation statements)

References 58 publications

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“…The first hypothesis, that of highly localized δ 13 C patterns, is at odds with the broad and replicable patterns in δ 13 C values recognized from the Lennard Shelf, in this study and others (Joachimski et al, 2002;Stephens and Sumner, 2003;George et al, 2014), which are similar in shape and amplitude to the well-studied excursions associated with the Kellwassers and equivalent horizons documented throughout Europe (e.g. Buggisch and Joachimski, 2006), North Africa (Joachimski et al, 2002), North America (e.g.…”

Section: Discrepancy In Timingcontrasting

confidence: 46%

“…Based on conodont biostratigraphy, excursion 1 can be correlated with the deposition of the Lower Kellwasser Horizon in Europe (e.g. Buggisch and Joachimski 2006), and we interpret it to be time-equivalent to the Lower Kellwasser excursion reported from localities around the world (Joachimski et al, 2002;Xu et al, 2003;Stephens and Sumner, 2003;George et al, 2014;and others). trend, albeit typically observed only in the triangularis Zone, is characteristic of European isotope records (e.g.…”

Section: Carbon Isotope Stratigraphymentioning

confidence: 69%

“…The interval of time surrounding the Frasnian-Famennian (F-F) boundary is generally marked by two positive carbon-isotope excursions (~3 ‰ average amplitude) in the marine carbonate record that correspond to the well-studied, organic-rich Kellwasser horizons and associated extinction events first described from sections in Central Europe and Morocco (McGhee et al, 1986;Buggisch, 1991;Joachimski and Buggisch, 1993;Joachimski et al, 1994;Joachimski et al, 2002). Despite the lack of similarly aged organic-rich deposits in the Lennard Shelf system, we report a European-like trend in carbon isotope values from four different measured sections.…”

Section: Discrepancy In Timingmentioning

confidence: 99%

“…The majority of Late Devonian geochemical studies document Upper Kellwasser excursion maxima at or slightly higher than the F-F boundary (e.g. Joachimski et al, 2002;Xu et al, 2003;Buggisch and Joachimski, 2006;George et al, 2014). As a result, they inadvertently lump the succession of related geo-and bioevents together and give the illusion that the Upper Kellwasser excursion and F-F boundary are time-equivalent.…”

Section: Introductionmentioning

confidence: 99%

“…Joachimski et al, 2002), or incomplete due to unconformities and depositional hiatuses related to the sharp marine regression in the uppermost Frasnian (Johnson et al, 1985;Sandberg et al, 1988;Geldsetzer et al, 1993;Muchez et al, 1996;Stephens and Sumner, 2003), and/or limited in terms of sampling density or biostratigraphic control at the intrabiozonal scale (e.g. Bratton et al, 1999;Stephens and Sumner, 2003;van Geldern et al, 2006).…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Upper Kellwasser carbon isotope excursion pre-dates the F–F boundary in the Upper Devonian Lennard Shelf carbonate system, Canning Basin, Western Australia

Hillbun

Playton

Tohver

et al. 2015

Palaeogeography, Palaeoclimatology, Palaeoecology

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Section: Discrepancy In Timingcontrasting

confidence: 46%

Section: Carbon Isotope Stratigraphymentioning

confidence: 69%

Section: Discrepancy In Timingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Upper Kellwasser carbon isotope excursion pre-dates the F–F boundary in the Upper Devonian Lennard Shelf carbonate system, Canning Basin, Western Australia

Hillbun

Playton

Tohver

et al. 2015

Palaeogeography, Palaeoclimatology, Palaeoecology

View full text Add to dashboard Cite

Radiometric Constraints on the Timing, Tempo, and Effects of Large Igneous Province Emplacement

Kasbohm

Schoene

Burgess

2021

Large Igneous Provinces

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There is an apparent temporal correlation between large igneous province (LIP) emplacement and global environmental crises, including mass extinctions. Advances in the precision and accuracy of geochronology in the past decade have significantly improved estimates of the timing and duration of LIP emplacement, mass extinction events, and global climate perturbations, and in general have supported a temporal link between them. In this chapter, we review available geochronology of LIPs and of global extinction or climate events. We begin with an overview of the methodological advances permitting improved precision and accuracy in LIP geochronology. We then review the characteristics and geochronology of 12 LIP/event couplets from the past 700 Ma of Earth history, comparing the relative timing of magmatism and global change, and assessing the chronologic support for LIPs playing a causal role in Earth's climatic and biotic crises. We find that (1) improved geochronology in the last decade has shown that nearly all well-dated LIPs erupted in < 1 Ma, irrespective of tectonic setting; (2) for well-dated LIPs with correspondingly well-dated mass extinctions, the LIPs began several hundred ka prior to a relatively short duration extinction event; and (3) for LIPs with a convincing temporal connection to mass extinctions, there seems to be no single characteristic that makes a LIP deadly. Despite much progress, higher precision geochronology of both eruptive and intrusive LIP events and better chronologies from extinction and climate proxy records will be required to further understand how these catastrophic volcanic events have changed the course of our planet's surface evolution.

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An abrupt oceanic change and frequent climate fluctuations across the Frasnian–Famennian transition of Late Devonian: Constraints from conodont Sr isotope

et al. 2019

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The Late Devonian Frasnian–Famennian (F‐F) transition witnessed one of the “big five” mass extinction events in the Phanerozoic. We here present high‐resolution conodont Sr isotopic data from Fuhe (South China) and Kowala (South Central Poland) sections to reveal coeval climatic and environmental variations and potential causes of this biotic crisis. Fuhe and Kowala sections yield 87Sr/86Sr ratios from 0.70815 to 0.70864 and 0.70808 to 0.70836, respectively. These Sr isotopic data demonstrate three distinctive variation cycles (I, II, and III), notably at Fuhe, fluctuating from low (negative) to higher Sr isotope ratios (positive excursion). Temporally, fluctuations I and II occurred immediately before the F‐F boundary, and fluctuation III started almost from the onset of the Famennian age. These conodont 87Sr/86Sr (low‐to‐high) fluctuations temporally match well the paces of conodont δ18O (low‐to‐high) and Δ13Ccarb‐org (high‐to‐low ) fluctuations from the identical section published previously. These Sr isotopic fluctuations thus corroborate the cyclic variations in volcanic activity/flux and weathering intensity/riverine flux in parallel with climate warm‐to‐cool fluctuations. Mass balance modelling shows the first exceptionally high Sr isotope spike (I) could have been only yielded by a dramatic increase in terrestrial flux in a somewhat restricted Palaeo‐Tethys, likely due to the closure of the oceanic domain between Laurussia and Gondwana and sea‐level fall. This scenario would enhance the seawater eutrophication/anoxia in the pericontinental basins along the Palaeo‐Tethys, causing initial strikes on the low‐latitude shallow marine benthos. Subsequently, the frequent climatic fluctuations may have further caused escalating detrimental ecological pressures, leading to their massive demise.

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Carbon isotope geochemistry of the Frasnian–Famennian transition

Cited by 180 publications

References 58 publications

Upper Kellwasser carbon isotope excursion pre-dates the F–F boundary in the Upper Devonian Lennard Shelf carbonate system, Canning Basin, Western Australia

Upper Kellwasser carbon isotope excursion pre-dates the F–F boundary in the Upper Devonian Lennard Shelf carbonate system, Canning Basin, Western Australia

Radiometric Constraints on the Timing, Tempo, and Effects of Large Igneous Province Emplacement

An abrupt oceanic change and frequent climate fluctuations across the Frasnian–Famennian transition of Late Devonian: Constraints from conodont Sr isotope

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