TECHNOLOGYQUIET
3 hours ago
Earth's churning mantle may have created the Great Unconformity
What's happening
SignalsMonitor is following this as a technology story. Ars Technica is the outlet attached so far. The first report grouped here was at 6 Nov 2026, 20:24 UTC. The headline in use is “Earth's churning mantle may have created the Great Unconformity”. This note is SignalsMonitor's own briefing, not the publisher's article.
What we know
In the Grand Canyon, there is a line in the rock where time seems to have gone missing. Ancient crystalline rocks mark its bottom, while sandstones laid down as life started to diversify during the Cambrian explosion mark the top.
Ars TechnicaRead at Ars Technica
Story timeline
Reports grouped into this story, earliest first. Exact repeats from the same outlet are collapsed.
- First reported by Ars Technica
Earth's churning mantle may have created the Great Unconformity
Reported by 1 outlet
- Ars Technica