Abstract
We measured titanium-in-quartz (TitaniQ) temperatures by ion microprobe for three deformed rocks having different quartz microstructure to assess the possibility of constrain- ing the temperature of mylonitization directly from dynamically recrystallized quartz grains. Calibration via ion microprobe indicates analytical precisions and accuracies of ~±2 °C and ±10 °C, respectively (2σ). High- versus low-temperature mylonites yield high versus low Ti concentrations and temperatures that are consistent with other fi eld studies of mylonites that have similar microstructures; these observations imply that TitaniQ accurately measures dynamic recrystallization temperatures. Variations in temperature in a single domain exceed analytical errors, implying that one microstructure in a rock can refl ect different tempera- tures and, presumably, strain rates. Combined with paleopiezometric and phase-equilibrium estimates of differential stress and water fugacity, strain rates may be estimated.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
