Summary of results. Joint NTGS-GA geochronology project: constraining cooling and deformation in the eastern Aileron Province through 40Ar/39Ar step-heating of hornblende, muscovite, and biotite

Abstract

This Record presents 40Ar/39Ar chronologic results acquired in support of collaborative regional geoscientific investigations and mapping programs conducted by Geoscience Australia (GA) and the Northern Territory Geological Survey (NTGS). Argon isotopic data and interpretations from hornblende, muscovite, and biotite from seven samples collected from the Aileron Province within the ALCOOTA, HUCKITTA, HALE RIVER, and ILLOGWA CREEK map areas of the Northern Territory are presented herein. The results complement pre-existing geochronological constraints from U-Pb zircon and monazite analyses of the same or related samples, and provide new constraints on the thermal and deformation history of the Aileron Province.