Dating dinosaurs and other old things

In fact, I have sitting in front of me on my desk a two-volume work on is not light reading, but I think that every Earth or space scientist should have a copy in his or her library -- and make that the latest edition.

In the time since the previous geologic time scale was published in 2004, most of the boundaries between Earth's various geologic ages have shifted by a million years or so, and one of them (the Carnian-Norian boundary within the late Triassic epoch) has shifted by 12 million years.

Conveniently, the vast majority of rocks exposed on the surface of Earth are less than a few hundred million years old, which corresponds to the time when there was abundant multicellular life here.

Here's the next step in that journey: the Geologic Time Scales of Earth and the Moon.The Geologic Time Scale is up there with the Periodic Table of Elements as one of those iconic, almost talismanic scientific charts.Long before I understood what any of it meant, I'd daydream in science class, staring at this chart, sounding out the names, wondering what those black-and-white bars meant, wondering what the colors meant, wondering why the divisions were so uneven, knowing it represented some kind of deep, meaningful, systematic organization of scientific knowledge, and hoping I'd have it all figured out one day.Venus, Io, Europa, Titan, and Triton have a similar problem.On almost all the other solid-surfaced planets in the solar system, impact craters are everywhere. We use craters to establish relative age dates in two ways.

Just like a stack of sedimentary rocks, time is recorded in horizontal layers, with the oldest layer on the bottom, superposed by ever-younger layers, until you get to the most recent stuff on the tippy top.

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If you found a rock with a dinosaur bone in it, you would not be able to convince an evolutionary geologist that it was anything other than a Triassic, Jurassic, or Cretaceous rock. If radioisotope dating indicated the rock was less than 65 million years old, or more than 250 million year old, the evolutionist would flatly reject the. 
07-Sep-2018 22:30
Jan 31, 2017. Two independent papers help open door to a molecular science of dinosaur paleontology. The other paper suggests that protein may even have survived in a 195-million-year-old dino fossil. “About the only thing that is the same as the 2009 experiments is the dinosaur,” Schweitzer says. In their 2009. 
07-Sep-2018 22:34
Many people are under the false impression that carbon dating proves that dinosaurs and other extinct animals lived millions of years ago. One thing you might want to ask yourself though, is how do you know it is millions of years old, giving an "incorrect" date one that you think is too young or if it actually is only a few. 
07-Sep-2018 22:38
Sep 30, 2013. In the science of geology, there are two main ways we use to describe how old a thing is or how long ago an event took place. There are. Relative age dating has given us the names we use for the major and minor geologic time periods we use to split up the history of Earth and all the other planets. 
07-Sep-2018 22:42

Dating dinosaurs and other old things introduction

Dating dinosaurs and other old things