Lots of oxygen on the Archean Earth?
Category: geology
New evidence for the early evolution of photosynthesis: was the early Earth really as oxygen-free as we think it was?
Posted by Chris Rowan at 7:30 AM • 18 Comments •
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Chris Rowan is a geologist specialising in the dark arts of paleomagnetism, and getting people to pay him to travel to exotic destinations for fieldwork. Having drilled up New Zealand during his PhD, and South Africa in his first post-doc, he now works at the University of Edinburgh.
Anne Jefferson has a love of all things water-related and blends hydrology, geomorphology, geology, and climate change in her work. She has a Ph.D. from Oregon State University and is now an assistant professor at the University of North Carolina at Charlotte.
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geochemistry:
How big was that asteroid? The latest geochemist/geophysicist smackdown
Category: geohazards
What's the most accurate method of estimating the size of asteroids associated with past impact events?
Posted by Chris Rowan at 10:18 AM • 4 Comments •
How the air we breathe became breathable
Category: geology
What geology tells us about the evolution of the Earth's atmosphere.
Posted by Chris Rowan at 10:21 AM • 7 Comments •
Out of the ice age, into the asteroid shower
Category: climatology
Was the biggest cold snap in the last deglaciation caused by an extraterrestrial impact?
Posted by Chris Rowan at 9:20 AM • 17 Comments •
