What is a Marker Bed?
I’ve had a couple requests to give a few more examples of what a geological marker bed (a.k.a. marker horizon) actually is, and more fully explain why I chose Marker Bed as the title...
Tagged: Earthtime
Marker Bed
Well, after twenty-five years I’m pleased to announce that Marker Bed is finally published and ready for purchase on the Amazon website. Our story takes place 300,000,000 years in the future, and while Marker...
An Evolving Debate
As discussed in a recent post, fossils help paleontologists unravel earthtime and sort events into their proper order. Along with the other rules and clues we have discussed regarding absolute time and relative age...
Paleontology: How the Earth Makes a Fossil
We’ve spent a couple recent posts discussing geologic time and the two methods earth scientists use to describe and measure it. We started with a general introduction to earthtime and absolute age dating (Intro...
The Warm Blob is Heating Up
This one will be short, but no less important for its brevity. Whether we’re concerned with climate, economics, or social unrest, it seems that many in our country are making a concerted effort to...
Intro to Relative Geologic Time
If you managed to plow through my latest post on Absolute Age Dating (Intro to Geologic Time), you probably muttered something like “This sounds too much like real science to be any fun at...
Intro to Geologic Time
One thing about time is that it keeps moving—always into the future and always in polar opposite, yet mutually supportive rhythms: relative and absolute. Relative time is agreeably flexible and adapts itself to the...
Maybe Not So Extinct After All
This one will be short so I can get back to work, but it was too good to pass up a quick summary. (I am literally weeks away from having all the pieces in...
It Hasta be Shasta
My most recent post (A Show of Hands) certainly woke up some of the usual suspects, and although it was not my intention to spark such impassioned rebuttal, it is comforting to realize that...
What’s Next?
I spend quite a bit of time thinking about what the earth is going to look like when humans are no longer around to take care of it. I had a student once who...
