Work Description

Title: Apatite fission track thermochronometry data from the Eastern Greater Caucasus, Azerbaijan Open Access Deposited

http://creativecommons.org/publicdomain/zero/1.0/
Attribute Value
Methodology
  • Uranium-238 undergoes spontaneous fission, leaving fission tracks in apatite grains, which incorporate uranium. These fission tracks are annealed over geologic timescales at temperatures greater than approximately 110 degrees C, so measuring the populations of fission tracks in natural apatite grains can constrain the time-temperature history of the apatites. Apatite grains were separated using standard magnetic and heavy liquid separation techniques. Grains were mounted and polished, then fission tracks were counted and used in combination with uranium concentrations inferred from induced fission (University of Arizona) or laser ablation inductively coupled plasma mass spectrometry (Apatite to Zircon, Inc.) to infer thermochronometric ages. Samples H3, H5, S1, S2, and S3 were analyzed at the University of Arizona using the external detector method in 2018 ( https://sites.google.com/site/arizonaftlab/home?authuser=0). Samples N1, N2, L2 were analyzed at Apatite to Zircon, Inc. in 2008-2010 using laser ablation inductively coupled plasma mass spectrometry to characterize apatite chemistry.
Description
  • Apatite fission track thermochronometry data were collected from the Eastern Greater Caucasus orogen, Azerbaijan. Thermochronometry data constrain the history of exhumation and deformation of rocks within the orogen, which is an active accretionary prism. Thermochronometry data record the timing of cooling of a rock sample beneath a given closure temperature. Given an assumed or inferred geothermal gradient, thermochronometric ages can be used to infer exhumation rates and make interpretations about rates of deformation in orogens. The apatite fission track data presented here are analyzed in concert with apatite (U-Th)/He and zircon (U-Th)/He ages reported in Tye et al., in prep., to characterize the exhumation history of the Eastern Greater Caucasus.
Creator
Depositor
  • alextye@umich.edu
Contact information
Discipline
Funding agency
  • National Science Foundation (NSF)
Keyword
Citations to related material
  • Tye, A. R., Niemi, N. A., Safarov, R. T., Kadirov, F. A., and Babayev, G. R., Structural and thermochronometric data provide insight into strain accommodation within an active accretionary prism, the Eastern Greater Caucasus. In prep.
Resource type
Curation notes
  • On November 20, 2019 the read me file was updated to correct an error identified by Alexander Tye. The updated read me file states fission tracks as being created by spontaneous fission of Uranium-238, not Uranium-235 as stated in the earlier read me file.
Last modified
  • 11/20/2019
Published
  • 11/19/2019
Language
DOI
License
To Cite this Work:
Tye, A. (2019). Apatite fission track thermochronometry data from the Eastern Greater Caucasus, Azerbaijan [Data set]. University of Michigan - Deep Blue. https://doi.org/10.7302/gkqx-rc70

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