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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: geopuzzling
Geopuzzle #11
Spot (and explain, if you can) the differences. It’s not much of a hint to say that the last one is quite difficult – but the last one is quite difficult. Update: Click through for the answer.
What’s up with those Archean sandstones?
In addition to searching out evidence for Archean microbial mats, my revisitation of the Pongola sandstones gave me the chance to look a bit more closely at their lithology. When I last posted pictures from this sequence, there was a … Continue reading
Peperite: a basaltic sneeze into wet sediments
The outcrop that I gave you to ponder on Friday is pretty strange, but I can assure you that this isn’t a wall: Most of you correctly guessed that the dark fragments are composed of a mafic (basalt-esque) igneous rock, … Continue reading
Uniformitarianism in action (sort of)
Most of you correctly identified the sedimentary structures in Friday’s mystery photo: two sets of ripple marks can be seen on the left, and a lower bed on the right has what look like dessication/mud cracks, formed by the drying … Continue reading
Nice plan for content warnings on Mastodon and the Fediverse. Now you need a Mastodon/Fediverse button on this blog.