Paul R. Renne

TL;DR: In this article, an enumeration of the data that should be reported in all 40Ar/39Ar studies, including a discussion in support of these requirements, is presented, and the minimum required data are identified and distinguished from parameters that are useful but may be derived from them by calculation.

TL;DR: The results imply that deep weathering profiles along the eastern Brazilian margin do not reflect present climatic conditions but are the result of a long-term process that was already advanced by the late Miocene.

TL;DR: In this paper, an analytical technique that generates high-precision 40 Ar/39 Ar data and quantifies Ar diffusion kinetics of low-K minerals is described. But plagioclase has rarely been used for thermochronometry, largely due to difficulties in simultaneously acquiring precise geochronologic data and Quantifying argon diffusion kinetic from a mineral with low-k concentration.

TL;DR: The 40Ar/39Ar dating method is among the most versatile of geochronometers, having the potential to date a broad variety of K-bearing materials spanning from the time of Earth's formation into the historical realm.

TL;DR: Acapulcoites consistently yield some of the oldest 40Ar/39Ar ages reported for any meteorites, all indistinguishable from the age of 4510±22 Ma previously determined for whole-rock samples of Acapulco.