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The Authors
For lot's more videos on soil moisture topics, see Drs Selker and Or's text-book support videos https://www.youtube.com/channel/UCoMb5YOZuaGtn8pZyQMSLuQ/playlists
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Category Archives: past worlds
All of this has happened before, and all of this will happen again: an introduction to How the Earth Works
For a couple of years now, I’ve been telling a story at the beginning of the introductory geology course I teach, called How the Earth Works. I like to think it gives a flavour of the kinds of stories you can tell about the Earth, if you know how to look: stories of how the world slowly remakes itself over hundreds of millions of years, of how the very high was once the very low, and will be again. This is that story. Continue reading
Talking ANDRILL
The Antarctic Geological Drilling Project – ANDRILL – is an ambitious program of drilling down to the sediments deposited around Antarctica in the past few tens of millions of years, to unravel the history of the Antarctic ice sheets: how … Continue reading
Snowball Earth no problem for sponges
Evidence from numerous sources seems to be converging to suggest that sponges – the first animals – emerged much earlier than the beginning of the Cambrian, and apparently sailed through severe climatic events in the Cryogenian without much trouble at all. Continue reading
Glacial deposits new and old in the Scottish isles
Islay – one of the birthplaces of the Snowball Earth. And good whisky. Continue reading
How do we know Gabon’s ‘multicellular’ fossils are 2.1 billion years old?
The fossil record prior to 550 million years ago is so patchy that every discovery is going to cause some fanfare. That is certainly case with these odd looking things, which have been proclaimed in Nature as the oldest mulitcellular … Continue reading
Nice plan for content warnings on Mastodon and the Fediverse. Now you need a Mastodon/Fediverse button on this blog.