New U–Pb zircon ages and the duration and division of Devonian time

Tucker, Robert D.; Bradley, Dwight C.; Straeten, Charles A. Ver; Harris, Anita G.; Ebert, James R.; McCutcheon, S. R.

doi:10.1016/s0012-821x(98)00050-8

Cited by 259 publications

(170 citation statements)

References 31 publications

(36 reference statements)

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“…The age of Ma of Bed 36 bentonite fits 377.2 ‫ע‬ 1.7 well into the timescale of Tucker et al (1998), which is also based on U-Pb ID-TIMS zircon ages ( fig. 4).…”

Section: Timescale Implicationssupporting

confidence: 59%

“…However, no isotopic ages have been acquired so far that fix the timing and duration of these events. Previous estimates for the age of the Frasnian-Famennian boundary range from 364.0 to 376.5 Ma (Harland et al 1990;Fordham 1992;Young 1995;Sandberg and Ziegler 1996;Tucker et al 1998;Compston 2000). This uncertainty is due to the lack of reliable and biostratigraphically well-constrained isotopic ages in the Late Devonian.…”

Section: Introductionmentioning

confidence: 99%

“…This uncertainty is due to the lack of reliable and biostratigraphically well-constrained isotopic ages in the Late Devonian. To date, the age of 376.5 Ma of Tucker et al (1998) represents the best estimate for the age of the Frasnian-Famennian boundary because it was interpolated between two isotope dilution-thermal ionization mass spectrometry (U-Pb ID-TIMS) zircon ages of the midFrasnian (Belpre Ash, Ma) and the late 381.1 ‫ע‬ 1.3 Famennian (Piskahegan Group, Ma). 363.6 ‫ע‬ 1.6 Figure 1.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

The Numerical Age of the Upper Frasnian (Upper Devonian) Kellwasser Horizons: A New U‐Pb Zircon Date from Steinbruch Schmidt (Kellerwald, Germany)

Kaufmann

Trapp²,

Mezger³

2004

The Journal of Geology

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“…The age of Ma of Bed 36 bentonite fits 377.2 ‫ע‬ 1.7 well into the timescale of Tucker et al (1998), which is also based on U-Pb ID-TIMS zircon ages ( fig. 4).…”

Section: Timescale Implicationssupporting

confidence: 59%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The Numerical Age of the Upper Frasnian (Upper Devonian) Kellwasser Horizons: A New U‐Pb Zircon Date from Steinbruch Schmidt (Kellerwald, Germany)

Kaufmann

Trapp²,

Mezger³

2004

The Journal of Geology

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“…This potentially indicates a close similarity in absolute age, but the biostratigraphic interval in question could span several million years (e.g. Tucker et al 1998).…”

Section: Age Of the Rhynie Chertmentioning

confidence: 99%

A high-precision U–Pb age constraint on the Rhynie Chert Konservat-Lagerstätte: time scale and other implications

Parry

Noble

Crowley

et al. 2011

JGS

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An isotope dilution thermal ionization mass spectrometry U–Pb zircon age of 411.5 ± 1.3 Ma obtained from an andesitic lava occurring within the Lower Devonian Rhynie Outlier (Aberdeenshire, NE Scotland) effectively dates the Rhynie Chert Konservat-Lagerstätte. Biostratigraphical constraints on the Rhynie Chert-bearing succession indicate that this age lies within the interval early (but not earliest) Pragian–(?)earliest Emsian. Accordingly, the Pragian–Emsian boundary must post-date or closely approximate to 411.5 ± 1.3 Ma, while the Lochkovian–Pragian boundary must predate 411.5 ± 1.3 Ma. Integration of this new high-precision age with an improved temporal framework for late Caledonian intrusive activity in NE Scotland suggests that the Rhynie hot-spring system (the ‘parental' hydrothermal system to the Rhynie cherts) was unrelated to any ‘Newer Granite' intrusion. Rhynie was instead powered by a basaltic andesite magma whose generation and ascent were directly linked to the transcurrent fault movements responsible for the formation of the Rhynie basin. Supplementary material: Details of analytical techniques (ID-TIMS U–Pb geochronology) and photomicrographs of zircon and titanite grains recovered from the Milton of Noth Andesite are available at http://www.geolsoc.org.uk/SUP18463 .

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“…The Givetian Stage can be considered the exponent of the Devonian timescale since it does not contain a single radiometric age. In recent Devonian timescales (Kaufmann 2006;Becker et al 2012), the age of the Givetian Stage boundaries is estimated by linear interpolation between the Eifelian Tioga Ash bed B (390.0 + 2.5 Ma; Klapper 1971;Roden et al 1990) and the Frasnian Belpre Ash (381.1 + 3.3 Ma; Tucker et al 1998;Rotondo & Over 2000). It goes without saying that the Givetian chronology is extremely poorly resolved when taking into account the broad error bars on these radiometric ages, the stratigraphic uncertainty and the dubiousness of the relative spans of biostratigraphical conodont zones within each (sub)stage.…”

mentioning

confidence: 99%

The astronomical calibration of the Givetian (Middle Devonian) timescale (Dinant Synclinorium, Belgium)

Vleeschouwer¹,

Boulvain

Silva

et al. 2014

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Recent advances in radiometric dating result in significant improvements in the geological timescale and provide better insight into the timing of various processes and evolutions within the Earth's system. However, no radiometric ages are contained within the Givetian. Consequently, the absolute ages of the Givetian Stage boundaries, as well as the stage's duration, remain poorly constrained. As an alternative, the analysis of sedimentary cycles allows for the estimation of the duration of this stage. We examined the high-resolution magnetic susceptibility signals of four Givetian outcrops in the Givet area for a possible astronomical imprint, to fully understand the rates of evolutionary and environmental change. All four sections are firmly correlated and wavelet analyses of the magnetic susceptibility signals reveal the imprint of astronomical eccentricity forcing. The highly stable 405 kyr cycles constrain the duration of the Givetian Stage at 4.35 + 0.45 Myr, which is in good agreement with the International Chronostratigraphic Chart (5.0 Myr). The studied sections also exhibit an imprint of obliquity, suggesting a climatic teleconnection between low and high latitudes. The corresponding microfacies curves demonstrate similar astronomical imprint, and thereby indicate that the observed 10 5 year-scale cyclicity is the result of climatic and environmental change.

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New U–Pb zircon ages and the duration and division of Devonian time

Cited by 259 publications

References 31 publications

The Numerical Age of the Upper Frasnian (Upper Devonian) Kellwasser Horizons: A New U‐Pb Zircon Date from Steinbruch Schmidt (Kellerwald, Germany)

The Numerical Age of the Upper Frasnian (Upper Devonian) Kellwasser Horizons: A New U‐Pb Zircon Date from Steinbruch Schmidt (Kellerwald, Germany)

A high-precision U–Pb age constraint on the Rhynie Chert Konservat-Lagerstätte: time scale and other implications

The astronomical calibration of the Givetian (Middle Devonian) timescale (Dinant Synclinorium, Belgium)

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