The zeta age calibration of fission-track dating

Hurford, Anthony J.; Green, Paul F.

doi:10.1016/s0009-2541(83)80026-6

Cited by 1,046 publications

(790 citation statements)

References 43 publications

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“…The magnification used was 1250x for apatite and 1600x (oil) for zircon. All ages were determined using the zeta approach [Hurford and Green, 1983] with a zeta value of 341 ± 6 for CN5/apatite, and of 130 ± 0.6 for CN1/zircon.…”

Section: Appendix A: Fission Track Methodologymentioning

confidence: 99%

Geochronological evidence for continuous exhumation through the ductile‐brittle transition along a crustal‐scale low‐angle normal fault: Simplon Fault Zone, central Alps

et al. 2010

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[1] Major low-angle normal faults juxtapose different structural levels of the crust that record both brittle and ductile deformation. Field relationships alone cannot establish whether these different responses to deformation represent (1) parts of a single process of exhumation along the detachment or (2) two separate events, with the later, more discrete brittle detachment exhuming a fossil ductile shear zone from depth. These two general models are critically assessed for the lowangle normal Simplon Fault Zone (SFZ) in the central Alps. The SFZ shows a spatial transition from a broad ductile mylonitic shear zone to a discrete brittle detachment with identical kinematics. The age of the ductile shear zone and ductile-brittle transition is controversial. We present a detailed geochronological study based on fission track, 40 Ar/ 39 Ar, and Rb/Sr microsampling dating, coupled with structural, petrological, and chemical analyses that provides tight constraints on SFZ timing. Discontinuous mineral cooling ages over a broad range of temperatures across the fault zone argue for fault activity between 20 and 3 Ma. On the basis of synkinematic white mica in low-temperature shear zones and necks of foliation boudinage, the brittle-ductile transition in the footwall could be dated at ∼14.5-10 Ma. Overall, the data presented here are consistent with a continuous transition from ductile shearing to a more localized zone of brittle deformation within the same geological framework, over a period of ∼15 Ma. The SFZ is therefore an example of a telescoped crustal section within a single major lowangle fault, involving a continuous period of exhumation rather than a two-stage structure.

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Section: Appendix A: Fission Track Methodologymentioning

confidence: 99%

Geochronological evidence for continuous exhumation through the ductile‐brittle transition along a crustal‐scale low‐angle normal fault: Simplon Fault Zone, central Alps

et al. 2010

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“…Standard and induced track densities were measured on mica external detectors (geometry factor = 0.5), and fossil track densities were measured on internal mineral surfaces. Ages were calculated using the standard fission track age equation [e.g., Hurford and Green, 1983] …”

Section: Fisher Creekmentioning

confidence: 99%

Dating of major normal fault systems using thermochronology: An example from the Raft River detachment, Basin and Range, western United States

Wells¹,

Snee²,

Blythe³

2000

J. Geophys. Res.

111

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“…There is good evidence that F apatites anneal more readily than CI apatites Green, 1982Green, , 1983. Four topographic profiles were sampled perpendicular to the strike of the orogen (Figures 4 and 6 Miocene FT history of the various samples (volcanic tuff versus clastic sediments of various stratigraphic ages), or an anomalous but poorly constrained FT age (profile C-C').…”

Section: Erosion Of Critical Wedgesmentioning

confidence: 99%

Life cycle of the East Carpathian orogen: Erosion history of a doubly vergent critical wedge assessed by fission track thermochronology

Sanders¹,

Andriessen²,

Cloetingh³

1999

J. Geophys. Res.

109

133

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The zeta age calibration of fission-track dating

Cited by 1,046 publications

References 43 publications

Geochronological evidence for continuous exhumation through the ductile‐brittle transition along a crustal‐scale low‐angle normal fault: Simplon Fault Zone, central Alps

Geochronological evidence for continuous exhumation through the ductile‐brittle transition along a crustal‐scale low‐angle normal fault: Simplon Fault Zone, central Alps

Dating of major normal fault systems using thermochronology: An example from the Raft River detachment, Basin and Range, western United States

Life cycle of the East Carpathian orogen: Erosion history of a doubly vergent critical wedge assessed by fission track thermochronology

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