RE: https://mastodon.social/@arstechnica/116108759807158445

Which #geochronological #method helps to determine the #age of #sediments as precisely as possible in order to reconstruct biotic, ecological, and #climatic relationships over the course of geological eras? R. T. Tucker et al. (2025) were able to precisely date the #eggshells of non-avian #dinosaurs using a novel LA-ICP-MS U-Pb #calcitedating method. This enabled them, for the first time, to date the Upper Cretaceous strata of the #GobiBasin (Mongolia) radioisotopically.
©This text#StefanFWirth