If this were a low-information publication, I might not expect to be enlightened on what these refined geochronological techniques were, specifically. But here we have phys.org glossing over them as though they were somehow now axiomatic. Inquiring minds want to know. How were the old dates obtained, and how were these refined dates obtained? It's kinda important. Meanwhile, I don't think any of these speculations account for massive burials in silt, worldwide. However, the Biblical flood does.
Ya want more information? There are links at the bottom of the article. Go to it.